Question

what is it? identifying substances by density
an unknown fluid substance has a mass of 5 grams and a volume of 7 milliliters. which of the following items is a possible identity of the substance?
a. lamp oil, 0.2 g/ml
b. vegetable oil, 0.71 g/ml
c. honey, 1.3 g/ml
d. dish soap, 1.7 g/ml

Explanation:

Step1: Recall density formula

The density formula is $
ho=\frac{m}{V}$, where $
ho$ is density, $m$ is mass and $V$ is volume.

Step2: Substitute given values

We have $m = 5$ g and $V=7$ mL. So, $
ho=\frac{5}{7}\text{ g/mL}\approx0.71\text{ g/mL}$

Answer:

B. vegetable oil, 0.71 g/mL