Type the correct answer in the box. Express your answer to three significant figures.


Air is a mixture of many gases. A 25.0-liter jar of air contains 0.0104 mole of argon at a temperature of 273 K. What is the partial pressure of argon in the jar?

The partial pressure of argon in the jar is ______ kilopascal.


Gas Laws Fact Sheet

Ideal gas law........PV=nRT

Ideal gas constant.........R=8.314 L kPa/mol K or R=0.0821 L atm/mol K

Standard atmospheric pressure.......1 atm=101.3 kPa

Celsius to Kelvin conversion........K=°C + 273.15

Respuesta :

Answer:

The partial pressure of argon in the jar is 0.944 kilopascal.

Explanation:

Step 1: Data given

Volume of the jar of air = 25.0 L

Number of moles argon = 0.0104 moles

Temperature = 273 K

Step 2: Calculate the pressure of argon with the ideal gas law

p*V = nRT

p = (nRT)/V

⇒ with n = the number of moles of argon = 0.0104 moles

⇒ with R = the gas constant = 0.0821 L*atm/mol*K

⇒ with T = the temperature = 273 K

⇒ with V = the volume of the jar = 25.0 L

p = (0.0104 * 0.0821 * 273)/25.0

p = 0.00932 atm

1 atm =101.3 kPa

0.00932 atm = 101.3 * 0.00932 = 0.944 kPa

The partial pressure of argon in the jar is 0.944 kilopascal.

Answer:

0.944

Explanation:

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