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Have a question about titrations, if we rinse the burette with water instead of the unknown acid, wouldn't this give us a lower calculated concentration of the unknown acid not a higher one?
If 4.89 moles of gas are contained in a volume of 47.04 L at 2.61 atm, what is the temperature of the gas in Kelvin?
If 3.02 moles of gas are contained at 2.25 atm and 31 oC, what is the volume of the gas in L?
Calculate the number of moles of gas contained in 11.63 L at 1.64 atm and 19.73 oC.
Calculate the pressure (in atm) on 4.11 moles of a gas contained in 15.19 L at a temperature of 101.54 K.
How many moles of a gas are contained in 48.97 L at a pressure of 2.01 atm and a temperature of 229.32 K?
A gas has a volume of 19.56 L at a temperature of 183 K. What will its volume be at a temperature of 327 K?
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A gas has is cooled from 106.43 oC to 43.15 oC. If its final volume is 4.79 L, what was its initial volume?
A gas is heated and its volume increases from 5.02 to 18.16 L. If the final temperature is 118 oC what was its initial temperature in Kelvin?
The volume of a gas increase from 3.43 to 8.80 L. If the initial temperature was 107 K, what is the final temperature?
If a gas has a volume of 22.30 L at 481 K, at what temperature will it have a volume of 7.83 L?
A gas has a pressure of 1.46 atm at a volume of 4.85 liters. What will be the pressure in atm if the volume changes to 6.73 liters?
A gas has a pressure of 6.81 atm at a volume of 2.32 liters. What will be the volume in L if the pressure changes to 8.38 atm?
A gas with a volume of 9.50 liters is compressed to 5.15 liters. If the new pressure is 2.10 atm, what was the original pressure?
A gas with a volume of 4.89 liters is expanded to 7.12 liters. If the new pressure is 1.62 atm, what was the original pressure?
A gas with a volume of 9.37 liters and a pressure of 1.16 atm is changed to a pressure of 2.55 atm. What is the new volume?
A gas has a volume of 3.28 L at a temperature of 28.80 oC and pressure of 0.37 atm. What is its volume if the pressure changes to 1.67 atm and the temperature changes to 43.81 oC?
A gas has a volume of 14.20 L at a temperature of 372.18 K and pressure of 3.54 atm. What is its temperature if the pressure changes to 1.25 atm and the volume changes to 5.60 L?
A gas is compressed to a volume of 16.80 L at a pressure of 2.70 atm and a temperature of 290.23 K. If the initial pressure was 1.39 atm and the initial volume was 31.21 L, what was the initial temperature?
What was the initial pressure on a gas if its volume changes from 4.15 L to 11.23 L, its temperature changes from 13.70 oC to 45.00 oC and its final pressure is 0.70 atm?
What was the initial volume of a gas if its pressure changes from 3.49 atm to 1.73 atm, its temperature changes from 140.67 K to 203.05 K, and its final volume is 8.78 L?
Calculate the heat hydrogenation of ethane, C2H4 given the following thermochemical equations:
2C(graphite)+3 H2 (g)-----> C2H6 (g) ∆Hf= -84.5 kJ/mol
2C(graphite)+2 H2 (g)-----> C2H4 (g) ∆Hf= 52.3kJ/mol
If 17.31 L of O2 is heated, what mass in grams of Fe is needed?
Here's an empirical formula C2H6O. Which of the following is NOT a possible molecular formula for this compound?
What is the molarity of a 250 mL solution containing 20 grams of KCl?
The initial solution of acetic acid (HC2H3O2) is clear and colourless. A few drops of phenolphthalein indicator are added to each sample. A dilute solution of sodium hydroxide (concentration 2.50 x 10-4 mol/L) is used as the titrant. As the mixture reaches the endpoint, flashes of pink colour are seen and the titrant is added drop by drop. The endpoint is reached when one drop of titrant turns the mixture a pale pink colour that does not fade
