# Question #a4579

##### 1 Answer

Your result is not in accordance with the Law of Conservation of Mass.

#### Explanation:

The balanced is equation

If the reaction obeys the Law of Conservation of Mass, the mass of

be 4.4 g.

We can use the Ideal Gas Law to calculate the mass of

#color(blue)(bar(ul(|color(white)(a/a)pV = nRTcolor(white)(a/a)|)))" "#

Since

#color(blue)(bar(ul(|color(white)(a/a)pV = m/MRTcolor(white)(a/a)|)))" "#

We can rearrange this to get

#m = (MpV)/(RT)#

NTP is defined as 1 atm and 20 °C.

In this problem,

∴

This is quite different from the expected value of 4.4 g.

Your result does not support the Law of Conservation of Mass.