Question

1. what is the mass of a rock that has a density of 2.5 grams per cubic centimeter and a volume of 4.0 cubic centimeters?

a) 1.6g
b) 10.0g
c) 4.0g
d) 6.2g

Explanation:

Step1: Recall the density formula

Density formula is \(d=\frac{m}{V}\), where \(d\) is density, \(m\) is mass and \(V\) is volume. We need to solve for \(m\), so we can rewrite the formula as \(m = d\times V\).

Step2: Substitute the given values

Given \(d = 2.5\space g/cm^{3}\) and \(V=4.0\space cm^{3}\). Substitute these values into the formula \(m = d\times V\). So \(m=(2.5\space g/cm^{3})\times(4.0\space cm^{3})\).

Step3: Calculate the mass

\(m = 2.5\times4.0=10.0\space g\)

Answer:

B. \(10.0\space g\)