Question

A reaction at evolves of dinitrogen monoxide gas. Calculate the volume of dinitrogen monoxide gas that is collected. You can assume the pressure in the room is exactly . Be sure your answer has the correct number of significant digits.

Answer 1

Answer:

The answer is "$V = 18.8\ L$".

Explanation:

Given:

$n= 0.788 \ mmol = 0.788 \ mol \ \text{(1 mmol is a thousandths of a mol)}\\\\R = 0.08206\ \frac{Latm}{Kmol}\\\\T = 17.0^{\circ}\ C = (17.0 + 273) \ K = 290 \ K\\\\ p=1\ atm\\\\V = ?$

Using idel gas law:

$PV = nRT\\\ \therefore \\\\V= \frac{nRT}{P}$

$V =\frac{0.788 \times 0.08206 \times 290}{1}$

   $=\frac{18.7523}{1} \\\\\ = 18.75$