The vapor pressure of methanol at 25°C is 126.mmHg. Calculate the vapor pressure in atm and torr. Round each of your answers to 3 significant digits.
Question
The vapor pressure of methanol at 25°C is 126.mmHg. Calculate the vapor pressure in atm and torr. Round each of your answers to 3 significant digits.
Solution
To convert the vapor pressure from mmHg to atm, we use the conversion factor 1 atm = 760 mmHg.
So,
126 mmHg * (1 atm / 760 mmHg) = 0.166 atm
Rounding to three significant digits, the vapor pressure of methanol at 25°C is 0.166 atm.
To convert the vapor pressure from mmHg to torr, we use the conversion factor 1 mmHg = 1 torr.
So,
126 mmHg * (1 torr / 1 mmHg) = 126 torr
Rounding to three significant digits, the vapor pressure of methanol at 25°C is 126 torr.
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