Using the reaction below, calculate how many grams of bromine gas are necessary to produce 1.00mL of hydrogen bromide gas at STP.

Question

H`2 + Br`2 -> 2 HBr

where `2 is a subscript two.

Answer 1

One simple way to do this is calculate how many moles of HBr are in 1ml

Moles=.001L/22.4L

So, you have the number of moles of HBr. Since Br2 was used to make it, it must be 1/2 that number of moles. convert that to grams.