Answer:
The answer is 144 g
Step-by-step explanation:
The mass of a substance when given the density and volume can be found by using the formula
mass = Density × volume
From the question
volume = 78.0 mL
density = 1.85 g/mL
We have
mass = 78 × 1.85 = 144.3
We have the final answer as
144 g
Hope this helps you