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Piece of metal with a mass of 125g is placed into a graduated cylinder that contains 25.00mL of water, increasing the water level to 56.00mL. Explain what is the density of the metal?
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How many water molecules are associated with a single salt molecule in a hexahydrate?
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Hydrazine, N2H4, is dibasic and has Kb1 = 3.35x10-7 and Kb2 = 1.42x10-16. Calculate the concentration of OH- ions in a 29.91 M aqueous solution of hydrazine. Express your answer in mM.
A 44.0 g sample of an unknown metal at 99.0 o C was placed in a constant-pressure calorimeter of negligible heat capacity containing 80.0 mL water at 24.0 o C. The final temperature of the system was found to be 28.4 ...
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