Question

calculate the molar mass of ethyl alcohol (c2h2oh)

Answer 1

c2h2oh has molar mass 12×2 +1×2 +16 +1
= 24+ 2+17 =43

Answer 2

so we know mass of carbon=12 and of h=1 and o=16 so we can
12*2+1*2+16+1=43