Question

How many moles of acetylene are needed to completely react with 16.5g of CO2

Answer 1

Answer:

0.375 mols

Explanation:

1. Relative atomic mass Ar of C=12×1=12
2. Relative atomic mass Ar of O=16×2=32
3. Realitive formula mass Mr is 12+32=44

mol:mass

1 : 44

x :16.5

cross multiply and get the answer