Question

Question 10 2 pts 10. What is the density of a 22.3 g sample that takes up a volume of 31.24 mL? Select the answer that is correct scientific notation. O 1.40 g/ml 7.14 x 10g/ml O 7x 10 g/ml O 0.71 g/ml

Answer 1

Given,

Mass of sample = 22.3 g

Volume occupied = 31.24 mL

We know that

$Density = \frac{Mass}{Volume}$

So,

$Density = \frac{22.3 g}{31.24 mL}$

According to the rule of division for significant figure, the answer should be reported based on the minimum number of significant figures in the given value. So, here minimum significant figure is three (22.3g). So,

Now, write in scientific notation as

$Density = 7.14\times 10^{-1} g/mL$

Hence,

Answer: 7.14x10^-1 g/mL

Let me know if you have any queries regarding this.