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Question
A 3.075 g sample of a compound containing only carbon, hydrogen, and oxygen is burned in an excess of dioxygen, producing 6.990 g CO2 and 2.862 g H2O. What mass of oxygen is contained in the original sample?A) 0.8472 g
B) 1.167 g
C) 3.915 g
D) 4.129 g
E) 0.2134 g
Answer
This answer is hidden. It contains 1 characters.
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Q:
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Q:
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Q:
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Q:
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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