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A 52.21 g sample of water at 82.2 degrees Celsius is added to a sample of water at 25.8 degrees Celsius in a constant pressure calorimeter. If the final temperature of the combined water is 40.4 degrees Celsius and the heat capacity of the calorimeter is 26.3 joules per degree Celsius what is the mass of the water originally in the calorimeter
If 100mL of 0.7M HCl is mixed with 900mL of water, what is the molarity of the HCl now
Solid AB2 is added to water and allowed to reach equilibrium. At equilibrium, the concentration of A2+ is found to be 0.24 moles/L. What is the Ksp of this salt
Suppose that one needs 17.65mL of 0.1146M NaOH to titrate 25.00 mL of 0.0237M hydrofluoric acid. Assume no volume change when the salt is dissolved. Calculate the pH of the buffer.
Emma is analyzing a sample which contains some zinc in it. The sample is .198 g. She reacts it with an excess of hydrochloric acid and measures hydrogen gas produced. The determination shows the sample to be 84% zinc. What amount of hydrogen (meas..
What is the maximum concentration of Cd2+ that can exist in a solution in which the S2- concentration is 2.5 x 10-6? Ksp(CdS) = 8.0 x 10-27
Calculate the pH at the equivalence point in titrating 0.010 M solutions of each of the following with 0.081 M NaOH. (a) hydrochloric acid (HCl) pH = _?_ It's not 12.55
If 34.0 mL lead(II) nitrate solution reacts completely with excess sodium iodide solution to yield 0.640 g precipitate, what is the molarity of lead(II) ion in the original solution?
What is the final Celsius temperature if 4.55 L of nitric oxide gas at 35°C is cooled until the volume reaches 1.00 L
Classify the following salt solution as neutral acidic or basic. Explain and use quilibrium value constants
Photosynthesis uses 660 nm light to convert carbon dioxide and water into gluclose and oxygen. calculate the energy of a mole of a photon
boyles apprentice observes that the air trapped in air tube occupies 24.8 cm3 at 1.12 atm.by adding mercury to the tube
A certain metal forms a bromide containing 53.79 percent Br by mass. what is the chemical formula of the compound
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