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Consider a glass of 150 mL of water at 30°C. Calculate the mass of ice at -15°C that must be added to cool the water to 10°C after thermal equilibrium is achieved. To find the mass of water use the density of water = 1.0 g/mL.
Compound Y is unusually stable. What is the structure of Y and how is it formed?
At constant pressure and 25 degrees celcius a sample of gas occupies 4.5 liters. At what temperature will the gas occupy 9.0 liters?
Which of the following will precipitate as chloride salts: Ag+, Pb2+, Ca2+, K+, and Cu2+?
Calculate the pH of a sodium cyanide solution that is 0.37M NaCN. The Ka for hydrocyanic acid HCN is 4.00E-10.
Suppose you have just added 200.0 ml of a solution containing 0.5000 moles of acetic acid per liter to 100.0 ml of 0.5000 M NaOH. What is the final pH? The Ka of acetic acid is 1.77 x 10^-5
What is the best and easy way to determine the frequency (in hz) of the interacting photon. A photon interacts with a ground state electron in a hydrogen atom and is absorbed.
How much 5.90 M NaOh must be added to 590.0mL of a butter that is 0.190 m acetic acid and 0.0260 m sodium acetate to raise the pH
Which of the following factors does not affect the velocity of an enzyme catalyzed reaction
the speed of a photon is 4.5x10^5 ms^-1. If the uncertainty in its momentum is to be reduced to .01 percent, what uncertainty in its location must be tolerated
Draw the structure(s) of the carboxylic acids with the molecular formula C5H10O2 that contain a branched carbon chain.
0.1 M NaCl was slowly added would a precipitate(s) form? if more then one precipitate could form, predict the order of appearance of the precipitates.
How much 5.90 M NaOh must be added to 570.0 mL of a buffer that is 0.0210 M acetic acid and 0.0230 M sodium acetate to raise the pH to 5.75
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