Question

26
a glass of milk has a mass of 206 grams and a volume of 200 ml.
what is the density of the milk?

Explanation:

Step1: Find the mass of the milk

First, we know the total mass of the glass and milk is 206 g, and the mass of the glass is 15 g. So the mass of the milk ($m$) is the total mass minus the mass of the glass.
$m = 206\ g - 15\ g = 191\ g$

Step2: Note the volume of the milk

The volume of the milk ($V$) is given as 200 mL. Since $1\ mL = 1\ cm^3$, the volume in $cm^3$ is also 200 $cm^3$.

Step3: Calculate the density of the milk

The formula for density ($
ho$) is $
ho=\frac{m}{V}$. Substituting the values of $m = 191\ g$ and $V = 200\ cm^3$ into the formula:
$
ho=\frac{191\ g}{200\ cm^3}= 0.955\ g/cm^3$

Answer:

The density of the milk is $0.955\ g/cm^3$