Question

q.13. the density of aluminium is 2.70 g/cm³. what is the volume of 675 grams of aluminium? a) 150 cm³ b) 200 cm³ c) 250 cm³ d) 300 cm³

Explanation:

Step1: Recall the density formula

The formula for density is $
ho = \frac{m}{V}$, where $
ho$ is density, $m$ is mass, and $V$ is volume. We need to solve for $V$, so rearranging the formula gives $V=\frac{m}{
ho}$.

Step2: Identify the given values

We know that the mass $m = 675$ g and the density $
ho=2.70$ g/cm³.

Step3: Substitute the values into the formula

Substitute $m = 675$ g and $
ho = 2.70$ g/cm³ into $V=\frac{m}{
ho}$. So $V=\frac{675}{2.70}$.

Step4: Calculate the volume

Calculating $\frac{675}{2.70}$, we can do this division: $675\div2.70 = 250$ cm³.

Answer:

c) 250 cm³