Chemistry, 10.01.2020 19:31 wendymtz2004
For each pair below, select the sample that contains the largest number of moles.
pair a
2.50 g o2
a. n.s: 2.50 g n2
pair b
21.5 g n2
a. n.s: 15.2 g co2
pair c
0.054 g o2
a. n.s: 0.081 co2
Answers: 3
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The empirical formula of a compound is ch2o and its mass is 120 amu/molecule, what is its formula?
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If a straight-chain hydrocarbon is a gas at room temperature, how many carbon atoms will it have? a. 6 carbon atoms b. 12 carbon atoms c. 24 carbon atoms d. 3 carbon atoms
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Calculate the ph at the equivalence point for the titration of a solution containing 150.0 mg of ethylamine (c2h5nh2) with 0.1000 m hcl solution. the volume of the solution at the equivalence point is 250.0 ml. kb forethylamine is 4.7 × 10−4 .
Answers: 2
For each pair below, select the sample that contains the largest number of moles.
pair a...
pair a...
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