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A sample oxygen is collected over water and has a volume of7.84 ml. The pressure od the collected "wet" gas is 71.8 KPa andthe temperature is 20°C. What will be the volume of the "dry"oxygen if the pressure is changed to 112 kkPA and teh temperatureis changed to -14°C?b) What is the vapor pressure of water at 73°C?c) What is the pressure of the WATER in a sample of oxygencollected over water at 38°C?
The heat of fusion of acetic acid, the principal organic component of vinegar, is 45.9 cal/g.How much heat (in kilocalories) is required to melt 3.65 mol of solid acetic acid
Propane reacts with excess oxygen to produce carbon dioxide gas and water. What volume of CO2,measured at 27.2 °C and 0.918 atm, is produced from the reaction of 10.1 g propane with excess oxygen.
Saturated steam at 1 atm condenses on a vertical plate which is maintained at a temperature 99 C. If the rate of heat transfer by condensation is 180 KW, determine the rate at which the condensate drips off the plate at the bottom.
a solution is prepared by adding 1.60 grams of solid NaCl to 50ml of 0.100M CaCl2. what is the molarity of chlorine ion in the final solution? assume that the volume of the final solution is 50ml
A zero-order reaction has a constant rate of 1.90×10-4 . If after 40.0 seconds the concentration has dropped to 6.50×10-2 , what was the initial concentration?
A certain reaction with an activation energy of 185kj/mol was run at 455k and again at 475 . What is the ratio of f at the higher temperature of f at lower temperature? one significant figure
In the titration of a weak base (0.100 M piperazine, 40 mL) with a strong acid (0.100 M HCl). Calculate the pH values between 0 mL Va and 100 mL in 10 mL steps. The two Ka values of piperazine are 4.65 x 10^-6 and 1.86 x 10^-10
Suppose you decide to define your own temperature scale using the freezing point (13 C ) and boiling point (360 C) of oleic acid, the main component of olive oil
How much water would you have to drink to meet your daily fluoride requirement of 0.5 mg.day?
A and B are two species which react in the presence of an acid catalyst. Would you expect the catalyst to appear in the rate law
Sodium carbonate ( Na_2CO_3) is used to neutralize the sulfuric acid spill. How many kilograms of sodium carbonate must be added to neutralize 5.04×103 kg of sulfuric acid solution?
a close chemical relative of the banned insecticide ddt is methoxychlor c16h15cl3o2. methoxychlor is currently used as
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