Question

Rowena and helga are both performing an experiment with nickel metal. Rowena has a 5 gram sample and determines the density to be 8.9g/cm3. If helga has a nickel sample that is twice as large and has a mass of 10 grams what would be the density of helgas sample?

Answer 1

Answer:

The density of helgas sample is 17.8 g/cm³.

Explanation:

Given that,

Mass of sample of Rowena = 5 gram

Density = 8.9 g/cm³

Mass of sample of helga = 10 gram

We need to calculate the volume of sample

Using formula of volume

$V=\dfrac{m}{\rho}$

Where, m = mass

$\rho$ = density

Put the value into the formula

$V=\dfrac{5}{8.9}$

$V=0.56\ cm^3$

We need to calculate the density of helgas sample

Using formula of density

$\rho=\dfrac{m}{V}$

Where, m = mass

V = volume

Put the value into the formula

$\rho=\dfrac{10}{0.56}$

$\rho=17.8\ g/cm^3$

Hence, The density of helgas sample is 17.8 g/cm³.