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lara31 [8.8K]
3 years ago
15

Calculate the number of moles of 67 point 2 dm3 of nitrogen gas at stp​

Chemistry
1 answer:
Kitty [74]3 years ago
3 0

Answer:

1 mol. = 0.169 mol He.

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Is a solution a homogeneous or a heterogeneous mixture? Give an example of an aqueous solution.
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Answer : The grams of N_2 consumed is, 89.6 grams.

Solution : Given,

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First we have to calculate the moles of CaCN_2.

\text{Moles of }CaCN_2=\frac{\text{Mass of }CaCN_2}{\text{Molar mass of }CaCN_2}=\frac{265g}{80g/mole}=3.2moles

The given balanced reaction is,

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from the reaction, we conclude that

As, 1 mole of CaCN_2 produces from 1 mole of N_2

So, 3.2 moles of CaCN_2 produces from 3.2 moles of N_2

Now we have to calculate the mass of N_2

\text{Mass of }N_2=\text{Moles of }N_2\times \text{Molar mass of }N_2

\text{Mass of }N_2=(3.2moles)\times (28g/mole)=89.6g

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