Question

which is not an appropriate unit for measuring density?
a) g/l
b) g/ml
c) kg/l
d) g/cm

Explanation:

Step1: Recall density formula

Density is defined as mass per unit volume, so the formula is $
ho = \frac{m}{V}$, where $
ho$ is density, $m$ is mass, and $V$ is volume.

Step2: Analyze each unit

• Option A: $\text{g/L}$ has mass (grams) over volume (liters), so it's a density unit.
• Option B: $\text{g/ml}$ has mass (grams) over volume (milliliters), so it's a density unit (since $1\ \text{ml} = 1\ \text{cm}^3$).
• Option C: $\text{kg/L}$ has mass (kilograms) over volume (liters), so it's a density unit.
• Option D: $\text{g/cm}$ has mass (grams) over length (centimeters), not volume. So it's not a density unit.

Answer:

D) g/cm