Chemistry, 10.08.2021 03:20 ksawyer745
Which of the following solutions is a good buffer system?
a. A solution that is 0.10 M HCN and 0.10 M KI
b. A solution that is 0.10 M H2CO3 and 0.10 M LiHCO3
c. A solution that is 0.10 M KCl and 0.10 M HBr
d. A solution that is 0.10 M NaOH and 0.10 M HNO2
e. A solution that is 0.10 M H2SO4 and 0.10 M CsHSO4
Answers: 2
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Motivation cannot be developed with practice; a person either possesses it or they do not.
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Aroller coaster car is traveling down a track at 22 m/s. the car has a mass of 2000 kg. what is the kinetic energy of the car? a) 22,000 j b) 968,000 j c) 484,000 j d) 44,000 j
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Chemistry, 22.06.2019 11:00
Problem page combustion of hydrocarbons such as pentane ( c5 h12 ) produces carbon dioxide, a "greenhouse gas." greenhouse gases in the earth's atmosphere can trap the sun's heat, raising the average temperature of the earth. for this reason there has been a great deal of international discussion about whether to regulate the production of carbon dioxide.(a) write a balanced chemical equation, including physical state symbols, for the combustion of liquid pentane into gaseous carbon dioxide and gaseous water. (b) suppose 0.350 kg of pentane are burned in air at a pressure of exactly 1 atm and a temperature of 20.0 degree c. calculate the volume of carbon dioxide gas that is produced.be sure your answer has the correct number of significant digits.
Answers: 2
Which of the following solutions is a good buffer system?
a. A solution that is 0.10 M HCN and 0.10...
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