An analytical chemist weighs out 0.265g of an unknown triprotic acid into a 250mL volumetric flask and dilutes to the mark with distilled water. She then titrates this solution with 0.0600M NaOH solution. When the titration reaches the equivalence point, the chemist finds she has added 69.0mL of NaOH solution. Calculate the molar mass of the unknown acid. Round your answer to 3 significant digits.
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Chemistry, 21.06.2019 16:30
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In a ni-cd battery, a fully charged cell is composed of nickelic hydroxide. nickel is an element that has multiple oxidation states. assume the following proportions of the states: nickel charge proportions found 0 0.17 +2 0.3 +3 0.33 +4 0.5 (a) determine the mean of the nickel charge. enter the answer to 2 decimal places.(b) determine the cumulative distribution function of nickel charge.
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A5 mole sample of liquid acetone is converted to a gas at 75.0°c. if 628 j are required to raise the temperature of the liquid to the boiling point, 15.600 kj are required to evaporate the liquid, and 712 j are required to raise the final temperature to 75.0°c, what is the total energy required for the conversion?
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An analytical chemist weighs out 0.265g of an unknown triprotic acid into a 250mL volumetric flask a...
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