Question

What is the mass, with correct number of significant figures, of a sample of silver that has a density of 10.5 grams/mL and avolume of 5.2 mL?0 55 g0 54.6 gO 0.495 g0 0.5 g

Answer 1

We need the mass of a sample of silver.

Density = mass/volume (1)

Density in g/mL

mass in g

volume in mL

Let's clear the mass from the equation (1):

Density x volume = mass

10.5 g/mL x 5.2 mL = Result must have 2 significant digits = 55 g

Answer: Mass of silver = 55 g