1. What is the volume of 0.900 moles of an ideal gas at 25.0° C and a pressure of 950.0 mm Hg?
1.50 liters
17.6 liters
18.0 liters
34.2 liters
2. What is the pressure, in mm Hg, of 2.50 moles of an ideal gas if it has a volume of 50.0 liters when the temperature is 27.0° C?
84.2 mm Hg
289 mm Hg
617 mm Hg
936 mm Hg
3. When 12.4 grams of KBr are dissolved in enough water to create a 170-gram solution, what is the solution's concentration, expressed as a percent by mass?
6.2% KBr
6.8% KBr
7.3% KBr
7.9% KBr
+5
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Home » Chemistry » 1. What is the volume of 0.900 moles of an ideal gas at 25.0° C and a pressure of 950.0 mm Hg? 1.50 liters 17.6 liters 18.0 liters 34.2 liters 2. What is the pressure, in mm Hg, of 2.50 moles of an ideal gas if it has a volume of 50.