What is the volume of 1.20 x 1022 molecules of nitric oxide gas,NO,at STP?

Question

Quizplus · Accepted Answer

We can use the formula, PV=nRT, where P=1 atm, V=unknown (what we’re solving for), n=1.20 x 10^22 molecules/6.022 x 10^23 molecules/mol= 0.0199 mol, R=0.0821 L∙atm/mol∙K (gas constant), and T=273 K (STP temperature). Rearranging the equation to solve for V, we get V=nRT/P = (0.0199 mol)(0.0821 L∙atm/mol∙K)(273 K)/(1 atm)≈0.447 L. Therefore, the answer is B.

What Is the Volume of 1