Question 7:How many grams of water vapor would be required to occupy a 2843 mL flask at 1.03 atm and 85.8 degrees Celcius? Record your answer in scientific notation to 2 decimal spaces.

Question 8:A steel tank contains a mixture of Ar and He gases. If the partial pressure of helium in the tank is 2368 mmHg, and the partial pressure of argon is 3940 mmHg, what is the total pressure in the tank (in atm)?

Question 9:An inflated basketball is left outside. Over the winter, which of the following must decrease?

Choices

Boltzmann's Constant

Pressure exerted on the ball from the inside

Number of moles inside the ba

ll Volume of the ball

Mass of the ball

Temperature inside the ball

Number of gas molecules inside the ball

Question 10:How many liters of hydrogen gas at STP are produced from the single displacement reaction of 52.3 g of zinc and excess sulfuric acid?

Zn + H2SO4 ZnSO4 + H2

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