Answer:
The question to your answer is:
Step-by-step explanation:
Data
mass = 521 g
Water volume = 50.0 ml
Increase of water = 77 ml
Formula
density = mass / volume
First substract the final volume to the initial volume
Volume of gold = 77 - 50 = 27 ml
Now, use the formula
density = 521 / 27 ml = 19.3 g/ml