[betocheagha]

Hydrogen cyanide gas (HCN, 27.03 g/mol) is extremely toxic. Levels around 3.2 mg/L can kill a person in about one minute. Suppose a reaction generates 0.0345 atm of HCN gas at 0.00°C in a 15.0 L fume hood. How many milligrams per liter of HCN is this?

 

[chenbeier]

Do you know the ideal gas law equation?

Using SI units.

[Borek]

You have to show your attempts at solving the problem to receive help, this is a forum policy.

[betocheagha]

You have to show your attempts at solving the problem to receive help, this is a forum policy.

ok.

So far ive plugged in PV=nRT

=> (0.0345)15=n(0.08206)(273.15)

but idk what to put or solve for n.

[chenbeier]

How can you express n?

The mass is to solve, how both connected.

[Borek]

So far ive plugged in PV=nRT

=> (0.0345)15=n(0.08206)(273.15)

You are on the right track, just calculate n and convert to mass.