Chemistry, 23.12.2020 14:00 pcruznoel6624
In the SI system ofunits [International System of Units], the mole is one of seven base units. It
is frequently used in chemical calculations. However, a mole of something is just a particular
quantity of it. It is not a unit of measure in the way that meters, seconds, and kilograms are.
Calculations performed with the number of moles of a substance could also be performed with
the number of particles of a substance. Based on this information, do you think that the mole
should be considered a base unit in the Sl system? Explain why or why not.
Answers: 2
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Which part of earth’s surface receives the most direct rays from the sun? a) equator b) ocean c) poles d) mountains
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Chemistry, 22.06.2019 09:00
Suppose you have designed a new thermometer called the x thermometer. on the x scale the boiling point of water is 129 ? x and the freezing point of water is 13 ? x. part a at what temperature are the readings on the fahrenheit and x thermometers the same?
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Asample of air with a volume of 2.20m3 at a pressure of 105 kpa and a temperature of 30c is cooled to 10c and the pressure is reduced to 75.0 kpa. what is the new volume? 6.9 1.34 2.56 43.0 2.88
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Chemistry, 22.06.2019 12:30
Sodium sulfate dissolves as follows: na2so4(s) → 2na+(aq) + so42- (aq). how many moles of na2so4 are required to make 1.0 l of solution in which the na concentration is 0.10 m?
Answers: 2
In the SI system ofunits [International System of Units], the mole is one of seven base units. It
i...
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