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If a sample of dry nitrogen occupies 447mL at STP. Define what would its volume be if it were collected over water at 26 degrees Celsius and 750torr?
What fraction of the acid in the 50.0 mL sample would be extracted, again at pH 3.42, using three 10.0 mL portions of chloroform. If the pH of the solution was changed to 6.00, what fraction would be extracted using 30.0 mL of chloroform with a 50...
The flask was then shaken until the solution was uniform. A 60.0 mL sample of this glucose solution was diluted to 0.500 L. How many grams of glucose are in 100. mL of the final solution?
The absolute maximum efficiency for a perfect solar cell in tightly controlled laboratory conditions is 30% whereas a typical commercial cell-say kind you might buy for your house-might be 4 to 15% efficient.
Predict whether the following reactions will be spontaneous in acidic solution under standard conditions.
Calculate percent recovery of panacetin from the individual masses of its mictures, sucrose (.044g), aspirine (.093), and the unknown (.339).
The standard electrode potential for the reduction of Eu3+(aq) to Eu2+(aq) is ?0.43 V. Use the data in Appendix D to determine which of the following is capable of reducing Eu3+(aq) to Eu2+(aq) under standard-state conditions
Demonstrate that if 4.0 ml of a solution of 0.20g of A in water were extracted with two 1.0 ml portions of ether, a smaller amount of A would remain in the water that if the solution were extracted with one 2.0 ml portion of ether.
Calculate the final temperature when a 22.0 gram sample of ice at 0oC is placed into a styrofoam cup containing 113 grams of water at 77.1 oC. Assume that there is no loss or gain of heat from the surroundings.
How many grams of lithium are required to completely react with 60.7 mL of N2 gas at STP?
The annual production of sulfur dioxide from burning coal and fossil fuels, auto exhaust and other resources is about 26 million tons. the equation for the reaction is S + O2= SO2.
what is the concentration of ammonia in a solution if 20.75ml of a .1130M solution of HCl are needed to titrate 100.0mL of that solution
question calculate the mass of nitrogen dissolved at room temperature in an 98.0 l home aquarium. assume a total
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