a swimming pool has a volume of 166.9 cubic meters. how many gallons of water can the pool hold

Answer:

Hey there.. the question is not proper. Please give the whole question

Answer: oml

Explanation: thats gross

i'd eat the pic below then that

Answer:

0.99 μmol/L

Explanation:

From the question given above, the following data were obtained:

Volume of stock solution (V₁) = 20 mL

Concentration of stock solution (C₁) = 18.8 μmol/L

Volume of diluted solution (V₂) = 380 mL

Concentration of diluted solution (C₂) =?

The concentration of the diluted solution can be obtained as follow:

C₁V₁ = C₂V₂

18.8 × 20 = C₂ × 380

376 = C₂ × 380

Divide both side by 380

C₂ = 376 / 380

C₂ = 0.99 μmol/L

Therefore, the concentration of the diluted solution the chemist is working on is 0.99 μmol/L

Answer:

Running to catch the bus would be it

Explanation:

because you're running for the others you barly move

Answer

(1) hexane

Explanation

The compound that is a saturated hydrocarbon in the options is hexane.

A Saturated hydrocarbon is a hydrocarbon in which all the carbon-carbon bonds are single bonds. A hydrocarbon is an organic compound whose only constituents are carbon and hydrogen.

Answer:

58.92 g EDTA

Explanation:

315.1 mL = .3151 L    

M = Moles / Liter

.3151 L  x 0.5 mol EDTA  x  374 g EDTA  =  58.92 g EDTA

                1 L EDTA             1 mol EDTA

The amount in grams of EDTA needed to make 315.1 mL of a 0.05 M is equal to 5.89 g.

In a 0.05M solution, there are 0.05 moles of the substance per 1 liter, that is, in 315.1 ml we have:

                                        \(\frac{0.05 mol}{xmol}= \frac{1000ml}{315.1ml}\)

                                           \(x = 0.016 mol\)

Thus, 0.016 mol EDTA of  is needed to prepare the solution.

To calculate the mass in an amount of moles, we use the molar mass, so that:

                                          \(m = MM \times mol\)

                                         \(m = 374 \times 0.016\)

                                             \(m = 5.89 g\)

So, the amount in grams of EDTA needed to make 315.1 mL of a 0.05 M is equal to 5.89 g.

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The surface area of the Lake Louise in square miles is 0.31 sq. miles

Unit conversion is the process of converting the measurement of a given amount between various units, often by multiplicative conversion factors that alter the value of the measured quantity without altering its effects.

To create a unit conversion issue where one (or more) units cancel out until just the desired unit is left, follow these steps:

The fundamental rule is to multiply when converting from a bigger unit to a smaller unit. Divide if you need to go from a smaller to a larger unit. You will reduce the number, and you are already aware that division is all about reducing numbers.

Given ,

2.59 sq kilometers is equivalent to 1 sq. mile

1 sq. kilometer = (1/2.59) sq. miles

0.8 sq kilometers is equivalent to (1/2.59)*0.8 = 0.31 sq miles

The surface area of the Lake Louise in square miles is 0.31 sq. miles

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The surface area of the Lake Louise in square miles is 0.31 sq. miles

Unit conversion is the process of converting the measurement of a given amount between various units, often by multiplicative conversion factors that alter the value of the measured quantity without altering its effects.

To create a unit conversion issue where one (or more) units cancel out until just the desired unit is left, follow these steps:

Find out what kind of unit you have.

Determine the desired unit.

Choose the proper unit conversion factor(s).

unit cancellation and math computations (e.g., multiply, divide).

The fundamental rule is to multiply when converting from a bigger unit to a smaller unit. Divide if you need to go from a smaller to a larger unit. You will reduce the number, and you are already aware that division is all about reducing numbers.

Given ,

2.59 sq kilometers is equivalent to 1 sq. mile

1 sq. kilometer = (1/2.59) sq. miles

0.8 sq kilometers is equivalent to (1/2.59)*0.8 = 0.31 sq miles

The surface area of the Lake Louise in square miles is 0.31 sq. miles

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Answer:

The answer is When CO2 increases, pH decreases and acidity increases.

Explanation:

Excess carbon dioxide (CO2) in the atmosphere gets absorbed at the ocean surface of the ocean. This excess CO2 results in more hydrogen ions, which increases the acidity of the ocean.

Answer:

Explanation:

Hess’s law derives directly from the law of conservation of energy, as well as its expression in the first law of thermodynamics. By Hess’s law, the net change in enthalpy of the overall reaction is equal to the sum of the changes in enthalpy for each intermediate transformation: ΔH = ΔH1+ΔH2+ΔH3.

Answer:

403.2 grams of oxygen

Explanation:

According to the balanced chemical equation, 2C2H6 + 7O2 —> 4CO2 + 6H2O, 4 moles of carbon dioxide (CO2) are produced for every 7 moles of oxygen (O2) that react. Therefore, if 7.2 moles of carbon dioxide are produced, the number of moles of oxygen that react is (7.2 moles CO2) * (7 moles O2 / 4 moles CO2) = 12.6 moles O2.

Since the molar mass of oxygen is approximately 32 g/mol, the mass of oxygen that reacts is (12.6 moles O2) * (32 g/mol) = 403.2 g. Therefore, 403.2 grams of oxygen react in order to produce 7.2 moles of carbon dioxide.

The amount, in kJ, of heat needed to completely vaporize 50.0g of water at 100°C is 118.8 kJ.

The heat needed to completely vaporize 50.0g of water at 100°C can be calculated using the following formula:

q = m x Hv

where:

First, we need to convert 50.0g to moles by dividing by the molar mass of water which is approximately 18.015 g/mol3:

moles of water = 50.0 g / 18.015 g/mol moles of water = 2.776 mol

Thus:

q = (2.776 mol) x (40.65 kJ/mol) q = 112.8 kJ

In other words, 112.8 kJ of heat is needed to completely vaporize 50.0g of water at 100°C.

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An example of heterogeneous equilibrium is:

Heterogeneous equilibrium refers to an equilibrium state in a chemical reaction where the reactants and products exist in different physical states or phases. It occurs when substances in different phases, such as solids, liquids, and gases, are involved in a chemical reaction.

Considering the given equations:

The equation I: FeO(s) + CO(g) ⇌ Fe(s) + CO₂(g) represents a heterogeneous equilibrium.

This is because the reactants and products involve different phases (solid and gas). FeO is a solid (s), CO is a gas (g), Fe is a solid (s), and CO₂ is a gas (g). The reaction involves the conversion of a solid and a gas to another solid and a gas, and the equilibrium is established between these different phases.

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Answer:

Option B. (0.148 × 40²) /2

Explanation:

The following data were obtained from the question:

Mass (m) = 0.148kg

Velocity (v) = 40m/s

Kinetic energy (K.E) =?

The kinetic energy of the base ball can be obtained by using ½mv² as follow:

K.E = ½mv²

K.E = ½ × 0.148 × 40²

K.E = (0.148 × 40²) /2

The molecules of Li₂O that would produce if you used up 6 atoms of Li(s) is 3.

It is an unstable inorganic and radical compound, used in the manufacture of glass and ceramic.

The balanced equation

\(\rm 6 Li(s) + O_2(g) \rightarrow 3 Li_2O(s)\)

If the atoms of lithium moves up to 6 the lithium oxide molecules will be 3, as you can see in the equation.

Thus, the molecules of Li will be 3.

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Answer:

I think it's A and C. Please tell me if I am wrong.

Explanation:

Answer:

Alright so I did this quiz a while ago it's A and C now could i have brainliest?

Explanation:

Answer:

oH-

Explanation:

is the only negative ion in a base

Answer:

group 17 the halogen.as it has 7 electron in its outermost ring

Answer:

Combustion reaction

General Formulas and Concepts:

Chemistry

Explanation:

Step 1: Define

2C₂H₂ + 5O₂ → 2H₂O + 4CO₂

Step 2: Identify

Any organic molecule reacting with oxygen to produce water and carbon dioxide is a combustion reaction.

We also see from the RxN that is is a double replacement reaction.

Answer:

Answer: 0.4 g

Explanation:

1) Balanced chemical equation:

2) 2C2H2 + 5 O2 → 4CO2 + 2 H2O

3) mole ratios:

2 mol C2h2 : 5 mol O2

4) Convert 0.13 g C2H2 into number of moles

n = mass in grams / molar mass

molar mass C2H2 = 2 *12g/mol + 2*1 g/mol = 26 g/mol

n = 0.13 g / 26 g/mol = 0.005 mol

5) Set the proportion with the unknown

5 mol O2             x

----------------- = ---------------

2 mol C2H2      0.005 mol C2H2

x = 0.005 mol C2H2 * 5 mol O2 / 2 mol C2H2 = 0.0125 mol O2

6) Convert 0.0125 mol O2 to grams

mass = number of moles * molar mass

molar mass of O2 = 32 g/mol

mass = 0.0125 mol * 32 g/mol = 0.4 g

Answer: 0.4 g

Explanation:

Answer:

A and B are helped

Explanation:

I just learned this topic in school :)

Answer: a and be helped

Explanation: you can mark them brainliest now

Answer:

B.Convection

the movement caused within a fluid by the tendency of hotter and therefore less dense material to rise, and colder, denser material to sink under the influence of gravity, which consequently results in transfer of heat.

Answer:

B.

Explanation:

The greatest increase in temperature will be seen in option B. gold (specific heat = 0.128 J g-¹ ° C-¹)

Formula of energy is Q = mcΔt

As we know that mass (m) and energy (Q) is same for all the four options so change in temperature (Δt) is inversely proportional to specific heat (c) of the given substance.

∴ Δt ∝ 1/c

So, as given in the question specific heat for gold is minimum therefore greatest increase in temperature will be seen in gold  

The greatest increase in temperature will be seen in gold (specific heat = 0.128 J g-¹ ° C-¹)

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Answer:

0.33moles

Explanation:

RAM of;

Na = 23, H=1, C=12, O=16

molar mass of NaHCO= 23+1+12+16= 52g/mol

mole= mass / molar mass

mole = 17.31/52

mole= 0.33moles

Answer:

your moms gas tank

Explanation:

The amount of heat required to vaporize 75.0 mL of acetone at 25°C is 31.651 kJ.

First, we need to determine the mass of acetone that is being vaporized: mass = density * volume

= 0.791 g/mL * 75.0 mL

= 59.33 g

Next, we can use the molar mass of acetone to determine the number of moles of acetone

moles = mass / molar mass

= 59.33 g / 58.08 g/mol

= 1.021 mol

The heat required to vaporize this amount of acetone can be calculated using the heat of vaporization

heat = moles x heat of vaporization

heat = 1.021 mol x 31.0 kJ/mol = 31.651 kJ

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Answer:

If n = 4, then the possible values of 1 and m depend on the equation or expression being used. Without more information, it is impossible to determine what the possible values of 1 and m might be. Can you please provide more context or information about the problem you are trying to solve?

Answer:

0.0039 mol/L

The molar solubility is 0.0039 mol/L, thus the common ion effect has reduced the solubility from 0.016 mol/L for Ag2SO4 in pure water to 0.0039 mol/L in the Na2SO4 solution.

Explanation:

Answer:

the boiling point of solution at 3 decimal point is 100.329०C Ans.

Explanation:

given data -

molality of Nacl = 0.321 m

molal boiling point elevation constant (Kb) =0.512०C/m

# formula of change of boiling point of sample =

∆ Tb =i × Kb × m

Kb = molal boiling point of elevation constant

m = molality

i = vont's hoff factor.

Nacl is strong electrolyte and its 100% dissociate so the value of i for Nacl is 2

put value in the formula

∆ Tb = 2 × 0.512 ०C/m × 0.321m

= 0.3287

= 0.329०C

∆Tb = T'b - Tb

T'b = boiling point of solution

Tb= boiling point of solvent( water)

0.329०C = T'b - 100०c ( boiling point of water = 100०C)

T'b = 0.329०C + 100०C

= 100.329०C

hope this helps

Force is a vector quality that measures both direction and magnitude of a push or pull on an object.          

Force is an influence or impact that can change the position or the motion of an object. it can cause an object with mass to change its velocity that is to accelerate or decelerate. It can be also stated as push or pull on an object. it  obey vector law of addition that is it has both magnitude and direction.

Its formula is mass multiplied by acceleration that is F=m.a

its unit is N (Newton).

there are different types of forces frictional, constant, tension etc.

Force is a vector quantity that measures both direction and magnitude of a push or pull on an object this is the correct sentence.

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Answer:

(Question 1) Which statement best describes force?

(Answer) Force is a vector quantity that measures both direction and magnitude of a push or pull on an object.

(Question 2) A soccer ball is traveling downfield with a force of 1.2 kN and strikes another soccer ball that is stationary. Which of the following describes the result of the collision?

(Answer) The stationary soccer ball will begin moving downfield and the ball that struck it will slow down.

(Question 3) Which of the following scenarios accurately describes magnitude and direction?

(Answer) A car traveling northward with 5 kN of force could be brought to a stop by a southward force of 5 kN.

(Question 4) What is force directly proportional to?

(Answer) the acceleration and mass of an object

(Question 5) Two ropes are being used to suspend a box. Each rope is exerting 5 N of upward force. If the forces are balanced and the box is stationary, how much force is being exerted by the box itself and in which direction?

(Answer) The box exerts 10 N of force downward.

Explanation:

just did the Quick Check, Enjoy UwU