Please help with chemistry!

Question

A synthesis reaction takes place when carbon monoxide (CO) and hydrogen gas (H₂) react to form methanol (CH₃OH). How many grams of methanol are produced when 14 grams of carbon monoxide reacts with 1.5 grams of hydrogen gas? (5 points)

	6 grams
	8 grams
	12 grams
	16 grams

Answer 1

Write the balance equation for the reaction taking place:

CO(g) + 2H2(g) ==> CH3OH ... balanced equation

Find the limiting reactant:

moles CO present = 14 g x 1 mol CO / 28 g = 0.5 moles CO

moles H2 present = 1.5 g x 2 mol H2 / 2 g = 0.75 moles H2O

Because according to the balanced equation it takes 2 moles H2 for every 1 mole CO, there isn't enough H2, so it is limiting and will dictate how much CH3OH can be made.

Mass of CH3OH produced = 0.75 moles H2 x 1 mol CH3OH / 2 mol H2 x 32 g CH3OH / mol = 12 g CH3OH