Chemistry, 19.12.2021 21:30 scheyennekreger
g You are preparing a series of samples to be analyzed by Spectrophotometry. For one sample, you take 5 mL of potassium permanganate that is at a stock concentration of 12 mg/mL and mix it with 5 mL of water. What is the final concentration of potassium permanganate in this sample
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Chemistry, 22.06.2019 10:00
How many mmols of tris-hcl are there in 100 ml of a 100 mm tris-hcl buffer solution at ph 8.1? note that the 100 mm refers to the sum of tris and tris-hcl concentrations?
Answers: 3
Chemistry, 22.06.2019 12:30
Which statement is true about this reaction? 14n+1h 15o it is a practical source of energy on earth. it occurs only outside the solar system. its product is heavier than each of its reactants. it shows the critical mass of an element.
Answers: 2
Chemistry, 22.06.2019 19:30
What is the common name for the compound shown here? enter the common name of the compound shown?
Answers: 2
Chemistry, 22.06.2019 19:50
If a gas has an initial pressure of 101kpa and a volume of 10l, then it expands to a volume of 20l, what is the new pressure?
Answers: 2
g You are preparing a series of samples to be analyzed by Spectrophotometry. For one sample, you tak...
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