Question

if a blood sample has a mass of 231. g and a volume of 232. ml, what is its density in \\(\frac{g}{ml}\\)? be sure your answer has the correct number of significant figures.

Explanation:

Step1: Recall density formula

Density ($
ho$) is defined as mass ($m$) divided by volume ($V$), so $
ho=\frac{m}{V}$.

Step2: Substitute values

Given $m = 231\space g$ and $V = 232\space mL$, substitute into the formula: $
ho=\frac{231\space g}{232\space mL}$.

Step3: Calculate the value

Perform the division: $\frac{231}{232}\approx0.995689655$.

Step4: Determine significant figures

The mass has 3 significant figures, the volume has 3 significant figures. When dividing, the result should have 3 significant figures. So we round $0.995689655$ to 3 significant figures, which is $0.996$.

Answer:

$0.996$