what+is+the+osmotic+pressure+(in+mmhg)+of+an+0.9%+nacl+solution?+(mw+=+58+g/mol)
Answers
Osmotic pressure refers to the pressure that is applied to the solvent molecules present in a solution to prevent the movement of solvent molecules into the more concentrated solution. It is a colligative property that depends on the concentration of solute particles present in the solution.
What is the osmotic pressure (in mmHg) of an 0.9% NaCl solution? (MW = 58 g/mol)To determine the osmotic pressure of a solution, we can use the following equation;π = iMRT Where,π is the osmotic pressurei is the van't Hoff factorM is the molarity of the solutionR is the gas constant T is the absolute temperature of the solutionTo determine the osmotic pressure of a 0.9% NaCl solution, first we need to calculate the molarity of the solution.0.9% NaCl solution means 0.9 grams of NaCl is present in 100 ml of solution.
The molecular weight of NaCl is 58 g/mol.Number of moles of NaCl present in 100 ml of the solution; Mass = Number of moles × Molecular weightNumber of moles = Mass/Molecular weightNumber of moles of NaCl = 0.9/58 = 0.0155 mol/LTherefore, the molarity of the solution is 0.0155M. Let's substitute the values in the formula and calculate the osmotic pressure of 0.9% NaCl solution.π = iMRTπ = (2)(0.0155)(0.0821)(273 + 25)π = 0.0294 atm Now we can convert the atmospheric pressure into mmHg by multiplying it by 760.π = 0.0294 atm × 760 mmHg/atmπ = 22.3 mmHgTherefore, the osmotic pressure of a 0.9% NaCl solution is 22.3 mmHg.
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Related Questions
Which of the following acids has the strongest conjugate base?
Question options:
a. HClO
b.HClO_4
c.HClO_2
d.HClO_3
e.HCl
Answers
Conjugate bases are defined as the molecules or ions that remain after acids donate a proton. Conjugate base strength is determined by the strength of the parent acid. As a result, strong acids generate weak conjugate bases, while weak acids generate strong conjugate bases.
The correct option is b. HClO_4.HClO4 is the strongest acid since it has the highest Ka. Because the conjugate base of HClO4 is ClO4, which is quite stable and can handle negative charges better than the others, it is the strongest conjugate base. HClO4 is the strongest acid among the options provided because it has the highest Ka. The conjugate base of HClO4 is ClO4, which is a very stable base because it can manage the negative charge better than any other options provided.
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how many grams of nacl ( 58.44 g/mol) are needed to make 250.0 ml of a 1.50 m solution of nacl?
Answers
Answer:
21.92 gm
Explanation:
A 1.5 M solution would have 1.5 * 58.44 = 87.66 gm per liter
you only need 1/4 of this (250 ml) = 21.92 gm
3 points
5. Which of the following is true regarding the atoms involved in a
chemical reaction? *
a) During a chemical reaction, atoms will always be combined into much larger
molecules.
b) Some of the atoms will always be changed into a different type of atom by a
chemical reaction.
c) Some of the atoms present before the reaction will always be lost during a
chemical reaction.
d) The same number of each type of atom will always be present before and after a
chemical reaction takes place.
Answers
Mass is never created or lost in a chemical reaction, so the atoms of each element must stay balanced.
Which of the following is NOT a property of table sugar?
white
sweet
soft
dissolves in water
Answers
Use the References to access important values if needed for this question. Enter electrons as e-.
A voltaic cell is constructed from a standard Pb2+|Pb Half cell (E° red = -0.126V) and a standard F2|F- half cell (E° red = 2.870V). (Use the lowest possible coefficients. Be sure to specify states such as (aq) or (s). If a box is not needed, leave it blank.)
The anode reaction is:___________
The cathode reaction is:__________
The spontaneous cell reaction is:__________
The cell voltage is ___________V
Answers
We know the standard reduction potentials of the half-cells involved, so we can find the cell voltage and the spontaneous reaction. Thus;
The anode reaction is:
Pb(s) → Pb2+(aq) + 2e-
This is the oxidation half-reaction that occurs in the Pb half-cell.
The cathode reaction is:F2(g) + 2e- → 2F-(aq).
This is the reduction half-reaction that occurs in the F2 half-cell.
The spontaneous cell reaction is
:Pb(s) + F2(g) → Pb2+(aq) + 2F-(aq).
This is the combination of the oxidation and reduction half-reactions, with the electrons canceled out from both sides.
The cell voltage is 2.996 V The standard cell potential is calculated as follows:
standard cell potential = E°(reduction) - E°(oxidation)standard cell potential = 2.870 V - (-0.126 V)standard cell potential = 2.996 V, The cell voltage is positive, indicating that the reaction is spontaneous.
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If you have a liquid that you suspect might be a mixture explain what you might do to find out if it is.
Answers
Answer:
add a substace devider
Explanation:
i forgot what it was called but there is a chemical that allows the substances to seperste and than you can test the substaces ph and what it is
Required information The Foundational 15 (Algo) [LO8-2, LO8-3, LO8-4, LO8-5, LO8-7, LO8-9, LO8-10] (The following information applies to the questions displeyed below] Morganton Company makes one product and it provided the following information to help prepare the master budget:
a. The budgeted selling price per unit is $65. Budgeted unit sales for June, July, August, and September are 8,200, 12,000,14,000, and 15,000 units, respectively. All sales are on credit.
b. Forty percent of credit sales are collected in the month of the sale and 60% in the following month.
c. The ending finished goods inventory equals 20%, of the following month's unit sales.
d. The ending raw materlals inventory equals 10% of the following month's raw materials production needs. Each unit of finished goods requires 5 pounds of raw materiais. The raw materials cost $2.00 per pound.
e. Twenty percent of raw materials purchases are pald for in the month of purchase and 80% in the following month.
f. The direct labor woge rate is $13 per hour. Each unit of finished goods requires two direct labor-hours.
g. The variable selling and administrative expense per unit soid is $1.30. The fliced selling and administrative expense per month is $62.000. pundational 8-5 (Algo)
5. If 71.000 pounds of raw materials are needed to meet production in August, how many pounds of raw materials should be irchased in July?
6. If 7.000 pounds of raw materlats are needed to meet production in August, what is the estimated cost of raw materials purchases for July?
7. In July whot are the total estimated cach disbursements for raw materials purchases? Assume the cost of raw material purchases in June is $93.040, and 371.000 pounds of raw materials are needed to meet production in August.
8. If 7.000 pounds of raw materials are needed to meet production in August, what is the estimated accounts payable balance at the end of July?
9. If 7.000 pounds of raw materials are needed to meet production in August what is the estimated raw materiais inventory balance at the end of July?
10. What is the total estimated direct labor cost for July?
Answers
5. To meet production in August, 71,000 pounds of raw materials are needed.
Since each unit of finished goods requires 5 pounds of raw materials, we can calculate the number of units needed in August as 71,000 pounds / 5 pounds per unit = 14,200 units.
The ending To determine the answers to the questions, we need to calculate the required information based on the provided data. inventory in July is 10% of the following month's raw materials production needs, which is 10% of 14,200 units = 1,420 units. Since each unit requires 5 pounds of raw materials, the total pounds of raw materials to be purchased in July is 1,420 units * 5 pounds per unit = 7,100 pounds. 6. To calculate the estimated cost of raw materials purchases for July, we need to determine the cost per pound of raw materials. Given that the raw materials cost $2.00 per pound, the estimated cost of raw materials purchases for July is 7,100 pounds * $2.00 per pound = $14,200. 7. The total estimated cash disbursements for raw materials purchases in July can be calculated by considering the payment terms. Twenty percent of raw materials purchases are paid for in the month of purchase, and 80% are paid in the following month. Given that the cost of raw material purchases in June is $93,040, the payment made in July is 20% * $93,040 = $18,608. The payment made in August would be 80% * $93,040 = $74,432. Therefore, the total estimated cash disbursements for raw materials purchases in July would be $18,608. 8. To calculate the estimated accounts payable balance at the end of July, we need to consider the payment terms. Since 80% of raw materials purchases are paid in the following month, 80% * $14,200 = $11,360 will be paid in August. Therefore, the estimated accounts payable balance at the end of July would be $14,200 - $11,360 = $2,840. 9. The estimated raw materials inventory balance at the end of July can be calculated by considering the ending raw materials inventory in July. Given that the ending raw materials inventory equals 10% of the following month's raw materials production needs, which is 10% of 14,200 units = 1,420 units. Since each unit requires 5 pounds of raw materials, the estimated raw materials inventory balance at the end of July would be 1,420 units * 5 pounds per unit = 7,100 pounds. 10. To calculate the total estimated direct labor cost for July, we need to consider the number of units produced and the direct labor wage rate. The budgeted unit sales for July are 12,000 units. Each unit of finished goods requires 2 direct labor-hours, so the total direct labor-hours for July would be 12,000 units * 2 direct labor-hours per unit = 24,000 direct labor-hours. Given that the direct labor wage rate is $13 per hour, the total estimated direct labor cost for July would be 24,000 direct labor-hours * $13 per hour = $312,000.
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5) 14,200 units of finished goods will be produced in August.
6) The estimated cost of raw materials purchases for July is $2,800.
7) The total estimated cash disbursements for raw materials purchases in July is $18,608 + $74,432 = $93,040.
8) The estimated accounts payable balance at the end of July is $59,546.40.
9) Raw materials inventory balance is 700 pounds.
10) Total estimated direct labor cost for July is $312,000.
Let's solve in detail:
5. To meet production in August, 71,000 pounds of raw materials are needed. Since each unit of finished goods requires 5 pounds of raw materials, the total number of units to be produced is 71,000 pounds / 5 pounds per unit = 14,200 units. Therefore, 14,200 units of finished goods will be produced in August.
6. If 7,000 pounds of raw materials are needed to meet production in August, and each unit of finished goods requires 5 pounds of raw materials, the total number of units to be produced is 7,000 pounds / 5 pounds per unit = 1,400 units.
The estimated cost of raw materials purchases for July is 1,400 units * $2.00 per pound = $2,800.
7. To calculate the total estimated cash disbursements for raw materials purchases in July, we need to consider the payment terms.
In July, 20% of raw materials purchases are paid for in the month of purchase, and 80% is paid in the following month.
The raw materials purchased in June amount to $93,040. Assuming 20% is paid in June, the cash disbursement for June is $93,040 * 20% = $18,608.
For the remaining 80% of the June purchases, which will be paid in July, we need to calculate the amount. This is given by 80% of the June purchases - 20% of the July purchases.
Amount to be paid in July = ($93,040 * 80%) - (Total purchases for July * 20%)
Solving for the Total purchases for July:
($93,040 * 80%) - (Total purchases for July * 20%) = Total purchases for July * 80%
Rearranging the equation:
($93,040 * 80%) = (Total purchases for July * 80% + Total purchases for July * 20%)
($93,040 * 80%) = Total purchases for July * 100%
Total purchases for July = ($93,040 * 80%) / 100%
Substituting the value of June purchases, we get:
Total purchases for July = ($93,040 * 80%) / 100% = $74,432
Therefore, the total estimated cash disbursements for raw materials purchases in July is $18,608 + $74,432 = $93,040.
8. If 7,000 pounds of raw materials are needed to meet production in August, and 80% of raw materials purchases are paid in the following month, the estimated accounts payable balance at the end of July would be 80% of the purchases for July.
Accounts payable balance = Total purchases for July * 80% = $74,432 * 80% = $59,546.40.
9. If 7,000 pounds of raw materials are needed to meet production in August, and the ending raw materials inventory equals 10% of the following month's raw materials production needs, the estimated raw materials inventory balance at the end of July would be 10% of the raw materials needed for August.
Raw materials inventory balance = 10% of the raw materials needed for August = 10% of 7,000 pounds = 700 pounds.
10. The total estimated direct labor cost for July can be calculated by multiplying the direct labor wage rate per hour by the total direct labor hours required for production in July.
Total direct labor hours for July = Number of units to be produced in July * Direct labor hours per unit = 12,000 units * 2 hours per unit = 24,000 hours.
Total estimated direct labor cost for July = Total direct labor hours for July * Direct labor wage rate = 24,000 hours * $13 per hour = $312,000.
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Which list represents the classification of the elements nitrogen, neon, magnesium, and silicon, respectively?
A)
nonmetal, noble gas, metal, metalloid
B)
noble gas, metal, metalloid, nonmetal
C)
nonmetal, metalloid, noble gas, metal
D)
metal, metalloid, nonmetal, noble gas
Answers
Answer:
A
Explanation:
Nitrogen is a reactive nonmetal. That leaves A or C, neon is a noble gas, the rest make sense too. Magnesium is an alkaline earth metal. silicon is a metalloid.
The element nitrogen is a non metal in 15th group, neon is a noble gas in 18th group and magnesium is metal and silicon is a metalloid. Hence, option A is correct.
What are metals ?In periodic table, the electropositive elements are called metals. They are located in the very left side and middle of the table. Thus metals are located in the s- block and d- block of periodic table.
From group 13 to 18 elements are broadly classified as non-metals. Group 18 represent the noble gases such as neon. Some elements shows the properties of both metals and non metals an they are called metalloids. Silicon , germanium etc. are metalloids.
Therefore, the element nitrogen is a non metal neon is a noble gas and magnesium is metal and silicon is a metalloid. Hence, option A is correct.
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What interest rate would be necessary to obtain $5,500 in 7 years if $4,000 is the amount of the original investment and the interest is compounded yearly?.
Answers
Given what we know, we can confirm that the interest rate necessary to reach $5500 in 7 years with a starting investment of $4000 on a yearly compounded interest, would be 4.7%.
Why is this the required interest rate?Since the question did not specify any extra data to be taken into account, such as:
Interest varianceMonthly or yearly contributionsInflation ratesand so on, we can assume that all of these values are null. Therefore, if we take $4000 and add 4.7%, and repeat that every time using our new totals, after 7 repetitions we are left with close to $5500, which is our goal.
Therefore, we can confirm that the interest rate necessary to reach $5500 in 7 years with a starting investment of $4000 on a yearly compounded interest, would be 4.7%.
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.A gas occupies 25,3 mL at a pressure of 152 kPa. Find the volume if the pressure is
reduced to 0.804 atm.
10
Answers
Answer:
47.36mL
Explanation:
Using Boyles law equation, which states that:
P1V1 = P2V2
Where;
V1 = initial volume (mL)
V2 = final volume (mL)
P1 = initial pressure (atm)
P2 = final pressure (atm)
Based on the provided information, V1 = 25.3mL, P1 = 152 kPa, V2 = ?, P2 = 0.804atm
First, we need to convert 152kPa to atm by dividing by 101
1kPa = 0.0099atm
152kPa = 1.505atm
P1V1 = P2V2
1.505 × 25.3 = 0.804 × V2
38.08 = 0.804V2
V2 = 38.08/0.804
V2 = 47.36mL
Select six different types of energy. physical light chemical mechanical atomic electrical mental heat
Answers
Answer:
Mechanical energy is energy that results from movement or the location of an object. Mechanical energy is the sum of kinetic energy and potential energy.
Explanation:
Nuclear energy is energy resulting from changes in the atomic nuclei or from nuclear reactions.
Example: Nuclear fission, nuclear fusion, and nuclear decay are examples of nuclear energy. An atomic detonation or power from a nuclear plant are specific examples of this type of energy.
The diagram below shows the eye, with several features labeled.
Which part of the eye is responsible for focusing an image onto the retina?
A
B
C
D
Answers
For your question about diagram it is definitely A
Answer:
A
Explanation:
how much energy is needed to convert 120g of ice at -35°C to steam at 150°C?
Answers
How do you write ionic equations and how do you form them? Can someone help please :(
Answers
Answer: here is my explination hope this is relavent. and helps to your question. i love chemistry
Energy is the ability to do work or produce heat.
True
False
Answers
Answer: true
Explanation: hope this helpes
Answer:
TRUE
Explanation:
power derived from the utilization of physical or chemical resources, especially to provide light and heat or to work machines.
A book that slides off a desk will fall to the floor. What is it the moves the book and all other objects, downward?
Group of answer choices
Friction with other objects
Air pressure pushing from above
The force of gravity
Earth's magnetic fields
Answers
Answer:
Answer down below!
Explanation:
It would be the force of gravity, because gravity pulls all things toward the center of the Earth. If the book would have fallen down, the force of gravity was put in place.
Answer: The force of gravity
Explanation:
gravity is a force the brings thins towards the core, aka the ground
Which choice below represents a negative impact that chemistry has on society?
A. development of cancer treatment drugs
B. development of Teflon, the nonstick material used in cookware
C.combustion of car engines producing pollutants in the air
D. the development of nuclear power plants used to produce electricity
Answers
Answer:
The answer is C
Explanation:
Your answer is C because car pollutants going into the air isn't good at all
Which of the following statements describes erosion?
A.
Breakdown of rocks by wind water and ice
B.
A build-up of rocks into a pile
C. Breakdown of water by ice and wind
D.
Movement of rocks by water, air, gravity, and ice
please help with my science quiz!
Answers
Answer:
D
Explanation:
Erosion is when rocks or sediments are moved around by those means mentioned.
why is time an independent variable
Answers
18. Nitrogen bases are joined together by which type of bond?
Answers
Answer: hydrogen bond
Explanation:
just becuase
A student conducts an experiment to determine how the temperature of water affects the time for sugar to dissolve. In each trial, the
student uses a different amount of water and a different temperature of water.
What is wrong with this experimental design?
Answers
The fact that the student used different amount of water (another independent variable) is wrong with the experimental design
WHAT ARE THE COMPONENTS OF AN EXPERIMENT?
An experiment aims at solving a scientific problem or answering a scientific question. An experiment should contain a variable being changed called INDEPENDENT VARIABLE and a variable being measured called DEPENDENT VARIABLE. In an ideal experiment, only one independent variable should be used while every other variable should be kept constant. This is done so as not to affect the result of the experiment.In the experiment conducted by the student in this question, two independent variables were used i.e. the different amount of water and the different temperatures. This is what is wrong about the experimental design.
In a nutshell, the fact that two independent variables were used by the student is what is wrong about the experimental design.Learn more at: https://brainly.com/question/967776
Answer: In an ideal experiment, only one independent variable should be used while every other variable should be kept constant.
Write a proposed answer to the question below. In your answer, include what is happening with the molecules.
Question: What happens to the molecules of two liquids when you mix them together?
Answers
The molecules of two liquids mix together and form a new liquid. However, the liquid formed might be miscible or immiscible.
When two liquids are mixed together it forms a new solution. The new liquid has the properties of both of the original liquids.
The formed liquid may either be miscible or immiscible depending upon the properties of the two liquids.
Miscible liquids become homogeneous solutions so that their composition would be uniform. This is done by the complete diffusion of both liquids.
But in the case of immiscible liquids, the solution forms two separate layers giving out heterogeneous solutions.
Therefore, the combination of 2 liquids gives a new solution that could either be homogeneous or heterogeneous.
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How many molecules of sucrose are
in 205 g C12H22011?
(C12H22O11, 342.34 g/mol)
[?]
[? ]×10¹²] molecules C12H22O11
Coefficient (green) Exponent (yellow)
I
Enter
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Answers
To begin with, sucrose is C12H22O11. Additionally, we must determine how many moles of sucrose there are in a pound of sucrose:
The moles of sucrose are 454g, 342.30g, mol1, and 1.33mol.
Is sucrose a good sugar to use?
Brief Summary According to a University of California, Davis study that was published in the Journal of Clinical Endocrinology and Metabolism, sucrose, the more "natural form of sugar," may be just as harmful to your health as HFCS.
Is sugar a healthy food?
Your body only receives sugar when you consume sucrose like soda or candy, and typically too much of it. The threat is present here. You run the risk of major health problems if you consume too much added sugar (fructose or sucrose) in your diet.
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If anyone is taking Integrated Physics and Chemistry (2014) on sos can u pls help me w something !! Thanks
Answers
I am so sorry i cant help but good luck
What is the theoretical yield of sodium chloride for the reaction of 55.0 g Na with 67.2 g Cl_2? O 55.4 gO 111 g O 141g O 222 g
Answers
The theoretical yield of sodium chloride for the reaction of 55.0 g Na with 67.2 g Cl2 is 141 g.
The theoretical yield of a chemical reaction refers to the maximum quantity of product that may be obtained by reacting specified quantities of reactants. The theoretical yield is determined using stoichiometry. The amount of product that is really obtained from a reaction is called the actual yield.
Theoretical yield is computed using stoichiometry by calculating the number of moles of each reactant involved in the reaction and then converting these values to the mass of the final product using the stoichiometry coefficients. The number of moles can be calculated using the molecular weight of each substance.
Let us calculate the theoretical yield of NaCl using the given data,55.0 g Na + 67.2 g Cl2 (balanced equation)
Now we calculate the moles of each substance using their respective molecular weights Na (sodium) molecular weight = 22.9898 g/mole
Moles of Na = 55.0 g / 22.9898 g/mole = 2.39 molesCl2 (chlorine)
molecular weight = 35.45 g/mole
Moles of Cl2 = 67.2 g / 35.45 g/mole = 1.90 moles
according to the balanced equation:2 Na + Cl2 → 2 NaCl
From the balanced equation, the mole ratio of Na and Cl2 is 2:1. Thus, Cl2 is the limiting reagent.
This implies that all of the 1.90 moles of Cl2 will be consumed, while only 2 x 1.90 = 3.80 moles of Na are necessary. The mass of NaCl can now be calculated using the mole ratio and the molecular weight of NaCl.
The molecular weight of NaCl = 58.44 g/mole
Theoretical yield = moles of NaCl x molecular weight of NaCl= 1.90 moles x 58.44 g/mole= 111.036 g≈ 141 g (to the nearest whole number)
Therefore, the theoretical yield of sodium chloride for the reaction of 55.0 g Na with 67.2 g Cl2 is 141 g.
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Match up the characteristics below with the type of molecular bond they describe. Bonds found in Halite (between Na+ and Cl-) Bonds found between Si and O in the Si-O tetrahedron Bonds inside the water molecule (between the H and O ) Bonds that exist between two water molecules Strongest bond type Weakest bond type Bonds that are used by water to dissolve sal
Answers
The characteristics and the type of molecular bond they describe:
1. Bonds found in Halite (between Na⁺ and Cl⁻): Ionic bond
2. Bonds found between Si and O in the Si-O tetrahedron: Covalent bond
3. Bonds inside the water molecule (between the H and O): Covalent bond
4. Bonds that exist between two water molecules: Hydrogen bond
5. Strongest bond type: Covalent bond
6. Weakest bond type: Van der Waals bond
7. Bonds that are used by water to dissolve salt: Ionic bond
The ionic bond is a type of molecular bond found in halite (between Na⁺ and Cl⁻). The Si-O tetrahedron is held together by a covalent bond. The bond inside the water molecule (between the H and O) is also a covalent bond. The hydrogen bond is the type of bond that exists between two water molecules. The covalent bond is the strongest bond type, while the van der Waals bond is the weakest bond type. Water uses the ionic bond to dissolve the salt.
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A sphere of radius 0.457 m, temperature 32.2 ∘
C, and emissivity 0.924 is located in an environment of temperature 82.9 ∘
C. At what rate does the sphere (a) emit and (b) absorb thermal radiation? (c) What is the sphere's net rate of energy exchange? (a) Number (b) Number Units Units
Answers
a) The sphere emits thermal radiation at a rate of 139.75 Watts.
b) The sphere absorbs thermal radiation at a rate of 37.66 Watts.
c) The sphere's net rate of energy exchange is 102.09 Watts.
What are the rates of thermal radiation emission, absorption, and net energy exchange for the sphere?To calculate the rates of thermal radiation emission and absorption, we can use the Stefan-Boltzmann law, which states that the rate of thermal radiation emitted or absorbed by an object is proportional to its surface area, temperature, and the Stefan-Boltzmann constant.
a) The rate of thermal radiation emitted by the sphere can be calculated using the formula:
Emitting Rate = emissivity * surface area * Stefan-Boltzmann constant * (\(temperature^4 - environment\ temperature^4\))
Plugging in the given values:
Emitting Rate = \(0.924 * (4\pi * (0.457)^2) * 5.67 \times 10^{-8} * ((32.2 + 273.15)^4 - (82.9 + 273.15)^4)\)
Emitting Rate ≈ 139.75 Watts
b) The rate of thermal radiation absorbed by the sphere can be calculated in a similar way but using the environment temperature as the object's temperature:
Absorbing Rate = emissivity * surface area * Stefan-Boltzmann constant * (\(environment\ temperature^4 - temperature^4\))
Plugging in the given values:
Absorbing Rate = \(0.924 * (4\pi * (0.457)^2) * 5.67 \times 10^{-8} * ((82.9 + 273.15)^4 - (32.2 + 273.15)^4)\)
Absorbing Rate ≈ 37.66 Watts
c) The net rate of energy exchange is the difference between the emitting rate and the absorbing rate:
Net Rate = Emitting Rate - Absorbing Rate
Net Rate = 139.75 Watts - 37.66 Watts
Net Rate ≈ 102.09 Watts
Therefore, the sphere emits thermal radiation at a rate of 139.75 Watts, absorbs thermal radiation at a rate of 37.66 Watts, and has a net rate of energy exchange of 102.09 Watts.
Note: The units for all the rates are Watts.
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How many moles are in 88.0 g of carbon dioxide (CO2)?
Answers
Write the correct electron configurations for the following:
ments
ions
• Na (atomic # 11)
• Fe (atomic # 26)
• As (atomic # 33)
• F (atomic #9)
• Co (atomic #27)
• Ag (atomic # 47)
• K (atomic # 19)
• Cu (atomic # 29)
• Si (atomic # 14)
Answers
Answer:
Ag
Explanation:
atomic 33 because it what what sence
Fe- 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^6
As- 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^10 4p^3
F- 1s^2 2s^2 2p^5
Why is it important to collect all data during experiments, rather than make inferences of what will happen?
Answers
Answer:
It is important to collect all data first, or else your guesses could purely be the opposite of the right answer. If you make inferences of what might happen, your guesses may be purely fictional, and totally off-topic. During experiments, this step is important.