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EleoNora [17]
3 years ago
12

Whoever can answer this I will give all of my points to and brainliest award.

Chemistry
2 answers:
ZanzabumX [31]3 years ago
7 0

i dont see the picture.

Serga [27]3 years ago
4 0
The picture doesn’t pop up
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A spectrophotometer measures the transmittance or the absorbance, or both, of a particular wavelength of light after it has pass
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Answer:Answer: The step that is NOT necessary to complete before a cuvette is placed into the spectrophotometer is option B (Write, in ink, either sample or blank on the side of the cuvette to keep track of them)

Explanation: spectrophotometer is an instrument used to measure the light intensity absorbed after being passed through a solution. Before the absorbance of the sample solution, a solvent solution called blank is used for the calibration of the machine and this blank solvent is placed in a cuvette. The procedure usually comes first before the main sample is processed. Therefore there is no need to

Write, in ink, either sample or blank on the side of the cuvette to keep track of them. This is so since sample and blank is not absorbed at the same time by the machine.

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The p sublevel holds 6 electrons because it has 3 orbitals.
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The molar heat of vaporization of water is 40.7 kJ mol . How much heat must be absorbed to convert 50.0 grams of liquid water at
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Number of mols = 50.0g/18g/mol =2.78 mol

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