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sleet_krkn [62]
3 years ago
11

Peter is 5 ft, 11 inches tall. Paul is 176 cm tall. Who is taller?

Chemistry
1 answer:
arlik [135]3 years ago
8 0
Peter is taller, convert cm to in.
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1 year ago
If a 45 mM phosphate solution(solution A) had an absorbance of 1.012. What would be the absorbance if 11 mL of solution A was us
timofeeve [1]

Answer:

0.550

Explanation:

The absorbance (A) of a substance depends on its concentration (c) according to Beer-Lambert law.

A = ε . <em>l</em> . c

where,

ε: absorptivity of the species

<em>l</em>: optical path length

A 45 mM phosphate solution (solution A) had an absorbance of 1.012.

A = ε . <em>l</em> . c

1.012 = ε . <em>l</em> . 45 mM

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We can find the concentration of the second solution using the dilution rule.

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The absorbance of the second solution is:

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8 0
3 years ago
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