Biology, 26.04.2021 23:20 milesjreece3939
In the graph, “ppm” stands for parts per million. A concentration of one ppm is a ratio of one part to one million parts. Concentrations can also be expressed as a percentage. Why do you believe scientists choose ppm over percentage in some cases?
Answers: 1
Biology, 22.06.2019 13:00
We can be sure that a mole of table sugar and a mole of vitamin c are equal in their 1) mass in daltons. 2) mass in grams. 3) number of molecules. 4) number of atoms. 5) volume.
Answers: 3
Biology, 22.06.2019 17:30
Aquantity of gas has a volume of 18 m3 and an absolute temperature of 225 k. when the temperature of the gas is raised to 380 k, what is the new volume of the gas? (assume that there’s no change in pressure.)
Answers: 1
In the graph, “ppm” stands for parts per million. A concentration of one ppm is a ratio of one part...
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