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A sample of methane gas having a volume of 2.80 L at 250C and 1.65 atm was mixed with a sample of oxygen gas having a volume of 35.0 L at 310C and 1.25 atm. The mixture was then ignited to form carbon dioxide and water. Calculate the volume of carbon dioxide formed at a pressure of 2.50 atm and a temperature of 1250C.
Calculate the quantity of heat in calories release when 241.62 g of water is cooled from 80.6°C to 28.0°C.
The temperature inside my refrigerator is about 40 Celsius. If I place a balloon in my fridge that initially has a temperature of 220 C and a volume of 0.5 liters
A balloon filled with helium gas has a volume of 741 mL at a pressure of 1 atm. The balloon is released and reaches an altitude of 6.5 km,where the pressure is 0.5 atm.
What is the pH of a buffer that consists of 0.45 M CH3COOH and 0.35 M CH3COONa? Ka = 1.8 × 10-5
A 29.0-g sample of water at 270. K is mixed with 48.0 g water at 340. K. Calculate the final temperature of the mixture assuming no heat loss to the surroundings.
What is the volume of .885 M hydrochloric acid required to react with (a) 25 mL of .288 M aqueous ammonia (b) 10 g of sodium hydroxide (c) 25 mL of a solution
In a coffee-cup calorimeter, 1.50 g of NH4NO3 is mixed with 76.0 g of water at an initial temperature of 25.00°C. After dissolution of the salt, the final temperature of the calorimeter contents is 23.65°C.
In a titration of HNO3, you add a few drops of phenolphthalein indicator to 50.00 mL of acid in a flask. You quickly add 26.50 mL of 0.0502 M NaOH but overshoot the end point
A piston has an external pressure of 6.00 atm. How much work has been done if the cylinder goes from a volume of 0.130 liters to 0.580 liters.
As of 2007 world record for swimming 1500.0 m in a long course pool is 14 min 34.56 s. if we follow this rate then calculate how many seconds would be taken by a man to swim 0.850 miles?
Calculate the mass (in mg) of KCN needed to make 500. mL of aqueous KCN solution with a pH of 10.00.
In one experiment, 11.5 g of NO formed when 112.4 g of each reactant was used. What is the highest percent yield of N2 that can be expected?
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