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Free_Kalibri [48]
3 years ago
10

The pKa of a solution is defined by the equation pKa=-log Ka

Chemistry
1 answer:
timurjin [86]3 years ago
5 0

Answer:

ka = 10^-pKa

or antilog-pka

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A chemist has 3.55x1022 molecules of nitrogen monoxide. How
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Answer:

<h2>0.059 moles</h2>

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

n =  \frac{N}{L} \\

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N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

n =  \frac{3.55 \times  {10}^{22} }{6.02 \times  {10}^{23} }  \\  = 0.05897...

We have the final answer as

<h3>0.059 moles</h3>

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