Question

A flask that weighs 255.7 g is filled with 125 mL of carbon tetrachloride. The weight of the flask and carbon tetrachloride is found to be 505.55 g. From this information, calculate the density of the carbon tetrachloride.

Answer 1

In the question we are given:

the weight of the flask = 255.7 g

The volume of the liquid = 125 mL

The final weight of flask and liquid = 505.55 g

In order to find the density of the liquid carbon tetrachloride we need to find its mass first, we can do that by subtracting the total weight minus the weight of the flask:

505.55 g - 255.7 g = 249.85 grams of CCl4

Now we can go ahead and use the density formula to find out the density of CCl4, the formula is:

ρ = m/v

where:

m = mass in grams

v = volume in milliliters

ρ = 249.85 g/125 mL

ρ = 1.9988, or you can round up to 2, therefore the density of Carbon Tetrachloride is 2 g/mL