## anonymous one year ago 16. What is the percentage of nitrogen in N2O? Show all calculations leading to your answer.

1. Photon336

@JayTheGreat let's do this step by step

2. Photon336

1. The first thing we need to do is we must calculate the total mass of our sample.

3. anonymous

ok im writing this down as we go so i can have it just in case i have a similar problem.

4. Photon336

2. we do this by counting up the number and types of each atom. |dw:1443460037643:dw|

5. Photon336

|dw:1443460123385:dw|

6. Photon336

they asked for the % of nitrogen so we know $\frac{ mass of nitrogen }{ total mass of compound } = \frac{ N_{2} }{ N_{2}O } = \frac{ 28 }{ 44 } x 100 = 64% N_{2}$

7. Photon336

so @JayTheGreat our compound is 64% nitrogen and 36% oxygen the most important step is the last one, but you'll see that all of the steps are important.

8. anonymous

thank you soooo much. you were a great help, i gave you a medal for your hard work.

9. Photon336

no problem @JayTheGreat anytime this is an easy problem but if you like using the steps I showed you tell me the % of hydrogen in water. $H_{2}O$ if you got it then that's great