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ValentinkaMS [17]
3 years ago
5

Explain the volume of ideal gasses as related to the molar concept.

Chemistry
1 answer:
love history [14]3 years ago
5 0

Answer:

n = Initial volume/22.4L

Explanation:

The molar concept is simply one that is used to find the Number of moles and explain the relationship it has with avogadro's number, molecular mass, molar mass e.t.c.

Now, in terms of molar mass, number of moles is given by the formula;

n = mass of the sample/molar mass

In terms of avogadro's number, number of moles is;

1 mole = avogadro's number = 6.02 × 10^(23)

Now, when dealing with ideal gases, the molar volume of an ideal gas is 22.4 L.

Now the relationship between this volume and the mole concept is that the number of moles is gotten by dividing the initial volume by this molar volume.

Thus;

n = Initial volume/22.4L

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A balloon that had a volume of 3.50 L at 25.0°C is placed in a hot room at 40.0°C. If the pressure remains constant at 1.00 atm,
inna [77]

Answer:

3.676 L.

Explanation:

  • We can use the general law of ideal gas: PV = nRT.

where, P is the pressure of the gas in atm.

V is the volume of the gas in L.

n is the no. of moles of the gas in mol.

R  is the general gas constant,

T is the temperature of the gas in K.

  • If n and P are constant, and have different values of V and T:

(V₁T₂) = (V₂T₁)

  • Knowing that:

V₁ = 3.5 L, T₁ = 25°C + 273 = 298 K,

V₂ = ??? L, T₂ = 40°C + 273 = 313 K,

  • Applying in the above equation

(V₁T₂) = (V₂T₁)

∴ V₂ = (V₁T₂)/(T₁) = (3.5 L)(313 K)/(298 K) = 3.676 L.

7 0
3 years ago
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HELP PLEASE QUICK!
klio [65]

Answer : The correct option is, 7.58

Explanation : Given,

pOH = 6.42

pH : It is defined as the negative logarithm of the hydrogen ion concentration.

As we know that,

pH+pOH=14

Now put the value of pOH in this expression, we get the pH of this solution.

pH+pOH=14

pH+6.42=14

pH=14-6.42

pH=7.58

Therefore, the pH of this solution is, 7.58

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Can someone explain how I would solve this?
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Answer:

sorry I don't know about this yet

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3 years ago
Consider the following generic chemical equation:
vredina [299]

Answer:  238.6 J

Explanation:

According to the law of conservation of energy, energy can neither be created nor be destroyed. It can only be transformed from one form to another.

Endothermic reactions are those in which heat is absorbed by the system and thus the energy of products is higher than the energy of reactants.

For the given reaction:

A+B+energy\rightarrow C+D

Energy of A = 85.1 J

Energy of B = 87.9 J

Energy on reactant side =  Energy of A + Energy of B  + Energy absorbed 85.1 + 87.9 + 104.3 = 277.3 J

Energy on reactant side = Energy on product side = 277.3 J

Energy on product side = Energy of C + Energy of D

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