If 1.30 g of dry ice (solid carbon dioxide) is placed in an empty balloon, what will be the volume of the balloon at 15.0°C and 740 torr once all of the dry ice has sublimed (i. e., converted to gaseous CO2) ?

Question

Chemistry

Phoenix Ibarra

25 December, 06:37

If 1.30 g of dry ice (solid carbon dioxide) is placed in an empty balloon, what will be the volume of the balloon at 15.0°C and 740 torr once all of the dry ice has sublimed (i. e., converted to gaseous CO2) ?

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Xavier Thompson · Answer 1

0.717 L

Explanation:

First, we will calculate the moles corresponding to 1.30 g of carbon dioxide (MW 44.01).

1.30 g * (1 mol/44.01 g) = 0.0295 mol

The pressure, in atm, is:

740 torr * (1 atm/760 torr) = 0.974 atm

The temperature, in Kelvin, is:

15.0°C + 273.15 = 288.2 K

We can find the volume of the gas using the ideal gas equation.

P * V = n * R * T

V = n * R * T / P

V = 0.0295 mol * 0.0821 atm. L/mol. K * 288.2 K / 0.974 atm

V = 0.717 L