Answer:
0.301 g/mL
Explanation:
Density = Mass / Volume
Step 1: Define variables
M = 84.0 g
V = 279 mL
D = ?
Step 2: Substitute and Evaluate for D
D = 84.0 g / 279 mL
D = 29/93 g/mL
D = 0.301075 g/mL
Step 3: Simplify
We are given 3 sig figs
0.301075 g/mL ≈ 0.301 g/mL
