03:31How to Find Gas Density and Molar Mass at STP (Standard Temperature and Pressure) Example, ShortcutConquer Chemistry780views
Multiple ChoiceTo identify a homonuclear diatomic gas, a chemist weighted an evacuated flask with a volume of 3.9 L then filled it with the gas at a pressure of 2.00 atm and 29.0 ºC. The chemist then re-weighted the flask and recorded the difference in mass as 8.81 g. Identify the gas.582views1rank
Multiple ChoiceWhat is the molecular formula of a compound that contains 39.0% carbon, 16.0% hydrogen, and 45.0% nitrogen, if 0.1576 g of the compound occupies 125 mL with a pressure of 0.9820 atm at 295.15 K?540views1rank1comments
Multiple ChoiceCalculate the molar mass for 2.50 g of an unknown gas in a 0.500-L container at a pressure of 735 mmHg and a temperature of 22℃.382views
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