Answer:
.13 moles
Explanation:
To begin this problem:
First you need to find the molar mass of acetamide, to do so:
- C=12g, H=1.008g, O=16g, and N=14g
- 2(12)+5(1.008)+1(16)+1(14)=59.04
To find moles when given grams, we divide grams by the molar mass.
- 7.8g/59.04g/mol=.13 moles
Using 2 sig figs from what we are given, this is our final answer.
Sorry it’s messy, hope this helps :]