Molar Volume of a Gas at STP Lesson 2.

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Molar Volume of a Gas at STP Lesson 2

It binds to receptors in the brain and causes nerve activity to slow down Adenonsine is produced by the brain This makes you tired Caffeine binds to the same receptors but does not slow down the nerve activity

The molar volume of any gas a STP standard temperature (0 0C) and pressure (101 kPa) is 22.4 L. memorize! 1 mole 1. Calculate the volume of 10.0 lbs of CO2 at STP. 10.0 lbs x 1.00 kg x 1000 g x 1 mole x 22.4 L = 2.30 x 103 L 2.21 lbs 1 kg 44.0 g 1 mole

2. Calculate the volume of O2 gas produced at STP for the 2. Calculate the volume of O2 gas produced at STP for the complete decomposition of 12.5 g HgO. HgO → 2Hg + O2 2 1 12.5 g ? L 12.5 g HgO x 1mole x 1 mole O2 x 22.4 L = 0.646 L 216.6g 2 mole HgO 1 mole

3. 10. 62 g of a common gas occupies 8. 50 L at STP. Calculate 3. 10.62 g of a common gas occupies 8.50 L at STP. Calculate the molar mass of the gas and determine the gas. 8.50 L x 1 mole = 0.37946 moles 22.4 L grams Molar Mass = = 10.62 g moles 0.37946 moles = 28.0 g/mole The gas is N2