What mass of NaN3(s) must be reacted in order to inflate an air bag to 60.2 L at STP?
Air bags are activated when a severe impact causes a steel ball to compress a spring and electrically ignite a detonator cap. This causes sodium azide (NaN3) to decompose explosively according to the following reaction.
2 NaN3(s) –> 2 Na(s) + 3 N2(g)
What mass of NaN3(s) must be reacted in order to inflate an air bag to 60.2 L at STP?
Please help me! I’m desperate!
Thanks so much! (btw, the answer is not 174 b/c i answered that in and it was wrong)
Thankx so much! ^^
Favorite Answer
60.2 L divided by 22.4 Mol/L is 2.6875 Mol of N2.
According to the reaction formula, it takes 2 molecules of NaN3 to make 3 molecules of N3.
2.6875 Mol of N2 * (2 Mol of NaN3 / 3 Mol of N2) = 1.7917 Mol of NaN3.
(I think that’s the step you missed.)
NaN3 has a molecular mass of (23 + 3*14) = 65 g/Mol
1.7917 Mol * 65 g/Mol = 116 grams.
Hope that isn’t too late to be of help.
- Academic Writing
- Accounting
- Anthropology
- Article
- Blog
- Business
- Career
- Case Study
- Critical Thinking
- Culture
- Dissertation
- Education
- Education Questions
- Essay Tips
- Essay Writing
- Finance
- Free Essay Samples
- Free Essay Templates
- Free Essay Topics
- Health
- History
- Human Resources
- Law
- Literature
- Management
- Marketing
- Nursing
- other
- Politics
- Problem Solving
- Psychology
- Report
- Research Paper
- Review Writing
- Social Issues
- Speech Writing
- Term Paper
- Thesis Writing
- Writing Styles