# Homework Help: I need help solving this problem, I have started but I don't know if I got it right

1. Jul 8, 2011

### marilu28

Vanillin (used to flavor foods) can be detected at 2.0 x 10-11 g/L of air. If the current price of 50g of vanillin is $112, determine the cost to supply enough Vanillin so that you would be able to detect it in an aircraft hanger with a volume of 5.0 x 107ft3 What I did was 5.0x107ft3 x28.32L= 1.42x109L, then I did 2.0x10^-11*g/L 1.42 x10^9L= 2.84x10^-2 g, then 2.84x10^-2 g*$112/50g= $6.36 x10^-2 or$.064?? but it does not seem right to me. Thanks for your help

2. Jul 8, 2011

### Pengwuino

Re: I need help solving this problem, I have started but I don't know if I got it rig

Yup that looks right.

3. Jul 8, 2011

### pmsrw3

Re: I need help solving this problem, I have started but I don't know if I got it rig

Nice problem. I think the point of this, in addition to making you work out how to do unit conversions and so on, is to demonstrate how incredibly sensitive your sense of smell can be.