Question

the vapor pressure of ethanol at 25 °c is 58.7 mmhg. calculate the vapor pressure in atm and torr. round each of your answers to 3 significant digits.

Explanation:

Step1: Convert mmHg to atm

Conversion factor: $1\ \text{atm} = 760\ \text{mmHg}$.
Calculation: $\frac{58.7}{760} \approx 0.0772\ \text{atm}$

Step2: Convert mmHg to torr

Conversion factor: $1\ \text{mmHg} = 1\ \text{torr}$.
Calculation: $58.7\ \text{mmHg} = 58.7\ \text{torr}$

Answer:

0.0772 atm
58.7 torr