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gladu [14]
3 years ago
6

When using ph paper, the ph of a solution can be determined by looking at the _______ of the paper?

Chemistry
1 answer:
Scorpion4ik [409]3 years ago
7 0
The colour of the paper
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A chemistry student needs 45.0mL of pentane for an experiment. By consulting the CRC Handbook of Chemistry and Physics, the stud
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The mass of pentane the student should weigh out is

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To calculate the mass of pentane following expression is used,

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mass of pentane = 0.626 gcm-3 * 45.0 mL

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Here the unit of mass of pentane is g,

However the unit of density is gcm-3 and unit of volume is mL i.e. cm3

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The mass of pentane the student should weigh out is 28.17g

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