Question

1. a flask that weighs 435.8 g is filled with 225 ml of carbon tetrachloride. the weight of the flask and carbon tetrachloride is found to be 703.55 g. from this information. calculate the density of carbon tetrachloride.

Explanation:

Step1: Calculate mass of carbon tetrachloride

The mass of the flask is $m_{flask}=435.8$ g and the mass of the flask - carbon tetrachloride system is $m_{total}=703.55$ g. The mass of carbon tetrachloride $m$ is given by $m = m_{total}-m_{flask}$.
$m=703.55 - 435.8=267.75$ g

Step2: Recall density formula

The density $
ho$ of a substance is given by the formula $
ho=\frac{m}{V}$, where $m$ is the mass and $V$ is the volume. The volume of carbon tetrachloride $V = 225$ mL.

Step3: Calculate density

Substitute $m = 267.75$ g and $V=225$ mL into the density formula:
$
ho=\frac{267.75}{225}=1.19$ g/mL

Answer:

$1.19$ g/mL