How many grams of O2(g) are needed to completely burn 95.1 g C3H8(g)?

Question

The combustion of propane may be described by the chemical equation

How many grams of  are needed to completely burn 

Answer 1

Hello, Ricardo,

I updated my original post to the one below. My original balanced equation had C3H6, not C3H8.

Please work on balancing the equation and calculating molar masses when posting questions. It's not clear what help you need for this problem.

My steps are in the table:

There are 2.2 moles of C3H6. Since the molar ratio between O2 and C3H6 is 10:2, multiply 2.2 x (5) to get moles O2 consumed. Then convert that to grams (346, with 3 sig figs)

Bob