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Question
A concentrated perchloric acid solution has a density of 1.67 g/mL at 25ºC and is 11.7 M. What is the percent by mass of HClO4in the solution?A) 70.4% HClO4by mass
B) 0.702% HClO4by mass
C) 1.42% HClO4by mass
D) 0.699% HClO4by mass
E) 60.2% HClO4by mass
Answer
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Q:
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Q:
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Q:
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Q:
If a reaction is first-order with respect to a particular reactant, when the concentration of that reactant is increased by a factor of 2, the reaction rate will _____.
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Q:
For a certain first-order reaction with the general form aA → products, the rate is 0.32 M·s-1 when the concentration of the reactant is 0.29M. What is the rate constant for this reaction?A) 0.26 s-1B) 1.1 s-1C) 0.32 s-1D) 3.1 s-1E) 3.8 s-1