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ideal gas equations

At STP, 0.280L of a gas weighs 0.400g. Calculate the molar mass of the gas.

Subject:

Chemistry

Topic:

General Chemistry

Posting ID:

9674

OTA ID:

102862

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Gas equations

Ozone molecules in the stratosphere absorb much of the harmful radiation from thr sun. the temp. and the pressure of ozone in the stratophere are 250 K and 1.0*10^-3atm. How many ozone molecules are present in 1.0 L of air under these conditions?

Subject:

Chemistry

Topic:

General Chemistry

Posting ID:

9675

OTA ID:

102509

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Calculate gas density

Calculate the density of HBr gas in grams per liter at 733 mm Hg and 46 degrees C.

Subject:

Chemistry

Topic:

General Chemistry

Posting ID:

9677

OTA ID:

103234

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gas stoichiometry

Calculate the mass in grams of Hydrogen chloride produced when 5.6 L of molecular hydrogen measured at STP react with an excess of molecular chlorine gas.

Subject:

Chemistry

Topic:

General Chemistry

Posting ID:

9678

OTA ID:

103642

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gas stoichiometry

C_2H_5OH burns in air: C_2H_5OH(l)+O_2->CO_2(g)+H_2O(l) balance the equation and determine the volume of air in liters at 35.0 C and 790 mmHg required to burn 227 g of ethanol. assume that air is 21.0 percent O_2 by volume.

Subject:

Chemistry

Topic:

General Chemistry

Posting ID:

9680

OTA ID:

103484

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