complete the following table summarizing the amounts of nitrogen and oxygen produced upon the decomposition of the sample of dinitrogen monoxide.

Question

            Mass N2O       Mass N    Mass O
Sample A 2.85 g          1.82 g       1.03 g
Sample B 3.15 g           _____       _____

 

 

Use the Law of Constant Composition

Answer 1

Hi Samantha,

The ratios of Sample A/Sample B are proportional, so

(3.15/2.85) = (Mass N_B/1.82) = (Mass O_B/1.03) ≈ 1.10526

Mass N_B = 2.01g and Mass O_B = 1.14g