Answer to Question #143512 in General Chemistry for Jumart Bessok

Question

3.A 500g of AI2O3 is produced from the reaction of AI and O2. Determine the mass of AI that is used.
(AI + O2 = AI2O3

4.What is the volume of water produced when 20grams of C7H16 (heptane) is combusted with oxygen.
(C7H16 + O2 = CO2 + H2O)

(Gas Laws)
1.A balloon is filled with 35.0L of helium in the morning when the temperature is 20.00 C. By noon the temperature has risen to 45.00 C. What is the new volume of the balloon?

2.What is the volume (in liters at STP) of 2.50 moles of carbon monoxide?

3.A 35L tank of oxygen is at 315K with an internal pressure of 190 atmosphere. How many moles of gas does the tank contain?

4.A 6.0L of gas in a piston at a pressure of 1.0 atm are compressed until the volume is 3.5L.What is the new pressure inside the piston?

5.A model hot air balloon has a volume of 35.0L at a pressure of 100 kPa and a temperature of 80.0°C.Calculate the new volume if the temperature is decreased to 15°C (assume constant pressure)

Answer 1

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