Question

2 g mixture of H2 and HE gases how mole fraction of H2S0.5 and mole fraction of HE is

Answer 1

Answer:

Here's what I got.

Explanation:

In order to be able to calculate the mole fraction of each component in the mixture,

you will have to convert the masses given to you to moles.

To do that, use the molar mass of oxygen gas, nitrogen gas, and hydrogen gas,

respectively

15.08 g ⋅ = 0.47127 moles O2

8.17 g ⋅ = 0.29165 moles N2

2.64 g ⋅ = 1.3096 moles H2

The total number of moles present in the mixture will be

ntotal = nO2 + nN2 + nH2

ntotal = 0.47127 + 0.29165 + 1.3096 = 2.0725 moles

So, to get the mole fraction of a component i of the mixture, all you have to do is

divide the number of moles of that component by the total number of moles present.

χi =

You will have

χO2 = = 0.227

χN2 = = 0.141

χH2 = = 0.632

Now, you could calculate the partial pressure of each gas by using the ideal gas law

equation three times, once for every gas.

Answer 2

Answer:

0.5

Explanation:

the sum of all mole fractions of the components of a compound is equal to 1.

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