2. If 600.cm of H, at 25 °C and 750 mm Hg is compressed to a volume of 480 cm\'

Question

2. If 600.cm of H, at 25 °C and 750 mm Hg is compressed to a volume of 480 cm' at 41'C, 3. Find the density of helium gas at STP 4 a) Write a balanced chemical equation for the reaction of butane gas with oxygen gas to form the pressure become? carbon dioxide and water vapor b) How many liters of oxygen are required to produce 2.0 liters of CO.? c) How many liters of CO, are produced from 116 g of butane at STP? d) How many molecules of water vapor are produced from 5.6 liters of butane gas at STP 5. Find the molar volume of a gas at 68 C and 2 00 atmosphéres pressure 6. How many liters of methane are there im 8.00 grams at STP? 7. What volume of O, at 710 mm IHg pressure and 36 C is required to react with 6.52 g of Cus? Cus(s) + 20)(g) CuSO4(i) : What is the molar mass of a gas if 7.00 grams occupy 6.20 liters at 29 C and 760 mm Hg

Explanation / Answer

(a)

At STP, 1 mole of any gas occupies 22.4 L volume.

Mass of 1 mole of He gas = 4 g

So,

Density = Mass/Volume = 4/22.4 = 0.178 g/L

Hope this helps !

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