Answer: 102 ft/s
Explanation: i did the math
3. Calculate the volume (mL) of aqueous 40% sucrose having a density
of 0. 911 g/mL, required to furnish 1. 5 mol C atoms (sucrose
C12H2204; C = 12, H = 1,0 = 16).
To furnish 1.5 mol of carbon atoms from sucrose, you would need approximately 294.3 mL of aqueous 40% sucrose solution.
The molar mass of sucrose (C12H22O11) can be calculated as follows:
Molar mass of C12H22O11 = (12 * 12.01 g/mol) + (22 * 1.01 g/mol) + (11 * 16.00 g/mol)
= 144.12 g/mol + 22.22 g/mol + 176.00 g/mol
= 342.34 g/mol
Since each mole of sucrose contains 12 moles of carbon atoms, the molar mass of carbon is:
Molar mass of carbon = (12 * 12.01 g/mol)
= 144.12 g/mol
To calculate the mass of carbon atoms needed to furnish 1.5 moles, we can use the following formula:
Mass of carbon = (1.5 mol) * (144.12 g/mol)
= 216.18 g
Now, we can calculate the volume of the aqueous 40% sucrose solution using its density:
Volume = Mass / Density
= 216.18 g / 0.911 g/mL
≈ 237.34 mL
However, the 40% sucrose solution is not pure sucrose. We need to consider the actual amount of sucrose in the solution. A 40% sucrose solution means it contains 40 g of sucrose per 100 mL of solution.
Therefore, the volume of the aqueous 40% sucrose solution required would be:
Volume = (237.34 mL * 100 mL) / 40 g
≈ 593.35 mL
To furnish 1.5 mol of carbon atoms from sucrose, you would need approximately 593.35 mL of aqueous 40% sucrose solution.
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explain why temperature is not as hot during the summer when a city is on a body of water (for example San Diego vs. Imperial Valley).
Answer:
because the water brings a cool breeze when the wind blows
Explanation:
Convert 50 mg/mL into g/L. Justify
5.37 | How milliliters of 0.124 M NAOH contain enough NaOH to react with the H2SO4 in 15.4 mL of 0.108 M H2SO4 according to the following equation?
Answer:
2 NaOH + H2SO4 → Na2SO4 + 2 H2O.
Explanation:
How many fluorine atoms are present in 125.0g of phosphorus pentafluoride?
molar mass of PF5 = 125.966 g/mol
125 g PF5 × (1 mol PF5/125.966 g PF5) = 0.992 mol PF5
0.992 mol PF5 × (6.022 × 10^23 molecules PF5);
= 5.97 × 10^23 molecules PF5
Since there 5 fluorine atoms per molecule of PF5,
(5.97.× 10^23 molecules PF5) × (5 atoms F/1 molecule PF5)
= 2.99 × 10^24 atoms F
the color change of an indicator is used to determine
Answer:
Whether a solution is acidic or basic can be measured on the pH scale. When universal indicator is added to a solution, the color change can indicate the approximate pH of the solution. Acids cause universal indicator solution to change from green toward red. ... Acidic solutions have a pH below 7 on the pH scale.
Explanation:
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Does Zaitsev's rule come into play during the reaction carried out in this experiment? Why or why not
Zaitsev's rule may or may not come into play during the reaction carried out in this experiment, depending on the specific reaction being studied.
Zaitsev's rule is a chemical principle that predicts the major product of a elimination reaction, which occurs when a molecule loses a small molecule, typically a proton or a halide ion. The rule states that the most substituted alkene is the major product.
In some reactions, the elimination step is the rate-determining step, and Zaitsev's rule would apply. In other reactions, the elimination step may not be the rate-determining step, or the reaction may proceed through a different mechanism that does not follow Zaitsev's rule. Therefore, it is important to consider the specific reaction being studied and the conditions under which it occurs to determine if Zaitsev's rule applies.
Without information about the specific experiment, you are referring to, I cannot accurately determine whether Zaitsev's rule comes into play or not.
Zaitsev's rule is used to predict the major product of an elimination reaction, specifically in E1 and E2 reactions. According to this rule, the most substituted alkene (having more carbon atoms attached to the double bond) is formed as the major product.
If the reaction in your experiment involves an elimination reaction, particularly E1 or E2, then Zaitsev's rule could be relevant in determining the major product formed. If the reaction does not involve elimination, Zaitsev's rule will not be applicable.
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Please help guys
When the nucleus of an atom is split, the release of __1__ produces a __2__ reaction.
1)
A. Protons
B. Chain
C. Nuclei
D. Neutrons
E. Spontaneous
F. Nuclear
G. Electrons
2)
A. Protons
B. Chain
C. Nuclei
D. Neutrons
E. Spontaneous
F. Nuclear
G. Electrons
Explanation:
probably protons would be released and cause a spontaneous reaction
An aluminum ion has 13 protons, 14 neutrons, and 10 electrons. What is the charge of the aluminum ion?
Answer:
the charge of the aluminum ion is +3
As scientists have learned more than atoms, models of atoms have changed. One of the first atomic models was a solid ball, such as a marble. What are two limitations of using a marble to model an atom?
Answer:It is important to realise that a lot of what we know about the structure of atoms ... This is often how scientific knowledge develops, with one person building on the ... The idea of atoms was invented by two Greek philosophers, Democritus and ... For example, an atomic model represents what the structure of an atom could ...
Explanation:
Answer:
The model dose not move or behave like a real atom.
The model dose not show the true size of an atom.
Explanation:
I had this quiz
Describe and explain the significance of research published by
F.S. Rowland in 1991 titled Stratospheric ozone in the
21st century: the chlorofluorocarbon problem?
The research titled "Stratospheric Ozone in the 21st Century: The Chlorofluorocarbon Problem" by F.S. Rowland was published in the journal Science in 1991. The study's significance is evident in the way it paved the way for global action on the depletion of the ozone layer.
The study outlined the link between chlorofluorocarbons (CFCs) and the depletion of the ozone layer in the stratosphere. These chemicals have long been utilized in refrigerants, air conditioning systems, foam insulation, and various industrial applications. They have been shown to destroy ozone molecules when they rise to the stratosphere, allowing ultraviolet radiation to penetrate the Earth's atmosphere. Rowland's research proved beyond a doubt that human activity is significantly affecting the ozone layer, resulting in an increased risk of skin cancer, blindness, and other problems associated with exposure to UV radiation.
The research is vital in the sense that it helped to initiate international agreements, such as the Montreal Protocol, aimed at phasing out the use of CFCs. These agreements have been instrumental in lowering the production and use of CFCs, resulting in a reduction in the depletion of the ozone layer. As a result, the world has benefited from a decrease in the risks associated with exposure to UV radiation. In conclusion, Rowland's research was groundbreaking in the sense that it confirmed the link between CFCs and ozone depletion, providing a basis for a global reaction to this critical problem.
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gwhen a cell exists the quiescent phase, which phase does it immediately enter? a. s b. m c. g1 d. g2 e. g0
When a cell exits the quiescent phase, it immediately enters the G1 phase.
The G1 phase is the first gap phase of the cell cycle, where the cell grows and prepares to replicate its DNA. In this phase, the cell checks its internal and external environment to ensure that it is ready for the next phase of the cell cycle, which is the S phase. During the S phase, the cell replicates its DNA, followed by the G2 phase where the cell continues to grow and prepare for cell division. Finally, the cell enters the M phase where it undergoes mitosis and divides into two daughter cells. Therefore, the correct answer to the question is c. G1.
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Which of the following molecules shows two atoms of hydrogen (H)? (1 point)O 2H₂OO 2CHAO HO₂O H₂SO4
Explanation:
H2O:
2 H2O shows 2 atoms of hydrogen. The number 2 in front of it means 2 moles of H2O
----------
CHA:
It only shows 1 atom of hydrogen
1 CHA means 1 mole of CHA
2 CHA means 2 moles of CHA
----------
HO2:
It only shows 1 atom of hydrogen
---------
H2SO4:
It shows 2 atoms of hydrogen
Answer:
H2O
H2SO4
Draw the lewis structure for sio2 and indicate how many unshared pairs of electron are present on the silicon?
According to the given statement the structure for SIO2 is given below.
What is SIO2?Silica, commonly referred to as silicon dioxide, is a substance with the chemical formula SiO2. Two oxygen atoms and one silicon atom make up its composition. It is primarily found in sand.
Silicon Dioxide (SiO2) Lewis StructureSiO2's Lewis structure and CO's Lewis structure are the same. The sole distinction is that silicon is utilized in place of carbon.
The central atom is one of silicon, and two oxygen atoms are joined to it by a double bond. On the core atom of the SiO2 Lewis dot structure, there are no lone pairs.
Step 1 is to determine how many valence electrons are present in SiO2.
Step 2 is to locate the atom with the lowest electronegativity and place it in the center.
Step 3: Join each oxygen atom to the silicon atom with a single link.
Step 4: Arrange the remaining valence electrons, starting with the outermost atom.
Finish the center atom's octet in step five, and if possible, create a covalent link.
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Explain what is happening in this reaction and write a nuclear equation for this reaction?
According to the previous session, the equation is:
Deuterium 2/1 H + Tritium 3/1 H -> 4/2 He + 1/0 n + energy
The plant on the left is growing more because it has been receiving more water
Observation or inference
Answer:
am not sure i understand but i think it got more chlorophyll
What pillar of sustainability is broken by recycling
electronics in India? Should the US make a law that electronics can
only be recycled in the US?
The pillar of sustainability broken by recycling electronics in India is environmental sustainability. Implementing a law that restricts electronics recycling to the US would not necessarily be the most effective solution, as it overlooks the complex global dynamics of electronic waste management.
Recycling electronics in India often involves improper disposal methods, such as burning or dismantling without proper safety measures. This leads to environmental pollution, including the release of hazardous substances into the air, soil, and water, thus violating the principle of environmental sustainability.
However, simply mandating that electronics can only be recycled in the US may not be the most optimal solution. Electronic waste is a global issue, and restricting recycling to a single country disregards the fact that electronic products are manufactured and consumed worldwide. A more comprehensive approach to addressing electronic waste would involve international cooperation, strict regulations, and monitoring of recycling practices to ensure they meet environmental standards.
Efforts should focus on improving recycling practices globally, including promoting responsible electronic waste management, developing sustainable recycling infrastructure in multiple countries, and encouraging the adoption of safe and environmentally friendly recycling practices. This approach would foster global sustainability and address the challenges associated with electronic waste disposal more effectively than a geographically limited restriction.
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Another alloy called nichrome contains only the elements chromium and nickel how much nickel dies it have
Answer:
80 g
Explanation:
Alloy = nichrome
100 g of nichrome contains 20 g of chromium
Contains only two elements (Nickel and Chromium) hence;
Mass of Alloy = Mass of Nickel + Mass of Chromium
100 = Nickel + 20g
Nickel = 100 g - 20 g = 80 g
1Calculate the density of an object that has a mass of 84.7g and a volume of 59.3 cm3
Answer:
1.43 g/cm³Explanation:
The density of a substance can be found by using the formula
\(density = \frac{mass}{volume} \\\)
From the question
mass = 84.7 g
volume = 59.3 cm³
We have
\(density = \frac{84.7}{59.3} \\ = 1.428330...\)
We have the final answer as
1.43 g/cm³Hope this helps you
What is the percent composition by mass of chlorine in LiCI
Answer: Lithium (Li) 16.373%
Chlorine (Cl) 83.627%
Explanation:
- explain why the sugar solution has the greater mass of dissolved solid per liter, but the
salt solution has the greater number of moles of solid per liter.
Concentrations are defined as the amount of a material divided by the volume that it is dissolved. A concentrated solution contains a significant amount of dissolved solute. A dilute solution is one with a small amount of dissolved solute.
When sugar dissolves in water, the weak bonds between the individual sucrose molecules are broken, and these C12H22O11 molecules are released into solution. It also requires energy to disrupt this same hydrogen bonds in water that have to be broken in order to insert one of these disaccharides into solution.
Positive and negative ions are held together in ionic solids (or salts) by the strong attraction between particles to opposite charges. When any of these solids dissolves in the water, the ions that make up the solid are published into solution and become entangled with the polar solvent molecules. When salts dissolve in water, they dissociate into their ions. Ionic compounds dissolve if the energy released by the ions when they interact to water molecules needs to compensate for the required to break this same ionic bonds inside the solid and also to separate the water so that the ions could be inserted into solution.
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PLEASE HELP DUE AT 2PM I'M DESPERATE, WILL GIVE BRAINLEST!!
1. When magnesium is burned in air, its mass increases. Explain why this is.
2. When a match is burned in air, its mass decreases. Explain why this is.
3. This equation is unbalanced Na + F2 → NaF. Explain how you know it is unbalanced.
4. Why does it need to be balanced? Refer to the conservation of mass in your answer
5. A student heats up a metal and finds that its mass increases. The students says “this is because heat has been added.” Explain why this is incorrect.
Answer:
Ans no 1. As magnesium used to react with oxygen and due to the reaction the mass (weight) of magnesium increases , this reaction between oxygen and magnesium which form magnesium oxide in the air by forming white smoke increases the mass of magnesium
Unknown element X is described as being a shiny solid with a that can conduct heat and electricity well . What is the identity of the element and periodic family it belongs to?
Calcium - Alkaline earth metals
Potassium - Alkali metals
Iodine - Halogens
Boron - Metalloids
Based on the properties of element X. element X is a metal. Thus, element X is: Calcium - Alkaline earth metals; option A
What are the properties of the elements?
The elements in the periodic table are classified into three types.
The three classes of elements are:
metals - they are mostly shiny solids that are good conductors of heat and electricitynon-metals - they may be solids, liquids, or gases; they are not shiny and are poor conductors of heat and electricitymetalloids - they are usually solids; they are poor conductors of heat and electricity.Learn more about metals at: https://brainly.com/question/2624096
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How large a net force is required to accelerate a 2000-kg suv from rest with an acceleration of 0. 14 m/s2?.
A large net force of 280N is required to accelerate a 2000 kg suv from rest with an acceleration of 0.14m/s2 .
According to Newton’s 2nd law of motion, force is equal to the change in momentum per change in time.Acceleration of an object depends on the mass of the object and the amount of force applied.
Force=mass* acceleration
Here, mass is equal to 2000 kg and acceleration is equals to 0.14m/s/s.putting these values,
F= ma
F= 2000kg * 0.14 m/s2
= 280 kg m/s2
=280N
So, 280N of force is required.
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In the titration of 45.0 mL of 0.400 M HCOOH with 0.150 M LiOH, how many mL of LiOH are required to reach the halfway point
60.0 mL of 0.150 M LiOH are required to reach the halfway point in the titration of 45.0 mL of 0.400 M HCOOH.
1. Determine the number of moles of HCOOH:
moles of HCOOH = volume × concentration
moles of HCOOH = 45.0 mL × 0.400 M = 18.0 mmol
2. Calculate the number of moles of HCOOH needed to reach the halfway point:
Halfway point moles of HCOOH = 18.0 mmol / 2 = 9.0 mmol
3. Find the volume of LiOH required to neutralize the halfway point moles of HCOOH:
moles of HCOOH = moles of LiOH (1:1 stoichiometry)
9.0 mmol HCOOH = 9.0 mmol LiOH
4. Calculate the volume of LiOH needed:
volume of LiOH = moles of LiOH / concentration of LiOH
volume of LiOH = 9.0 mmol / 0.150 M = 60.0 mL
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PLEASE HELP ME!
In the chemical equation below, which atom type is NOT balanced on the reactant and product sides? Na + MgF2 à 2NaF + Mg Question 6 options: Na Mg F None, they are all balanced.
Answer:
Na
Explanation:
Reactant side:
1 Na
1 Mg
2 F
Product side:
2 Na
1 Mg
2 F
There is one more Na atom on the product side than the reactant side. To balance this, multiply the Na on the reactant side by 2.
Viscosity increases as temperature increases.
Please select the best answer from the choices provided
T
F
Answer:
False
Explanation:
Because viscosity decrease with increase in the temperature
Answer:
False
Explanation:
Seleccione una actividad humana y el impacto generado debe realizar un resumen sobre la actividad seleccionada y dos medidas de prevención para evitar la alteración de los ciclos.
Answer:
Industrial activity increases the emission of greenhouse gases in the atmosphere, especially carbon dioxide (CO2), and it negatively affects climate by increasing global warming.
Two actions to face the global warming:
1- To substitute the use of fossil fuels by alternative clean energy sources such as, for example, hydroelectric, geothermal, solar and wind energy resources.
2- The government's policies decided to develop electric cars and to stimulate healthy habits such as walking instead of the use of conventional fossil-fueled transport modes.
What is the volume (in liters at STP) of 70.0 g of carbon monoxide, CO?
The volume that is occupied by the gas is obtained as 56 L.
What is the volume of the CO?We know that from the Avogadro's law, the volume that can be occupied by one mole of a gas is obtained as 22.4 L. This implies that we have to find the number of moles in the 70 g of the CO and then obtain the corresponding volume by simple proportion.
Number of moles of CO = 70.0 g/28 g/mol
= 2.5 moles
If 1 mole of the gas occupies 22.4 L
2.5 moles of the gas occupies 2.5 * 22.4/1 mole
= 56 L
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What element is represented by the following electron configuration?
1s22s22p63s23p64s23d104p65s24d9
adetona favour hannah's