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ex01_day09wks_explanations

# ex01_day09wks_explanations - WorksheetKey...

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Worksheet: Gases Name: __________________________ UTEID: ___________________ Complete the following problems in class. You may do the work on the back or on an attached paper. Hydrogen oxygen balloons create quite a thundering “pop” when ignited. Mariella observed that balloons with hydrogen as the limiting reactant (but still with as close a 2:1 ratio as possible) tended to pop more loudly than those with oxygen as the limiting reactant. Jose decides to ready a balloon for reaction. Using conditions of STP, he imparts 0.18 L of oxygen and 0.40 L of hydrogen to a balloon. Identify the limiting reactant, the amount of water VAPOR formed, and the amount of reactant left over at the conclusion of the explosion. 1. Limiting reactant is Amount of water VAPOR formed: Amount of reactant left over: _______________________________ A large flask is evacuated and found to weigh 134.567 g. It is then filled to a pressure of 735 torr at 31 o C with a gas of unknown molar mass and then reweighted; its mass is 137.456g. The flask is then filled with water and again weighed; its mass is now 1067.9 g. Assuming that the ideal gas

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ex01_day09wks_explanations - WorksheetKey...

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