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stealth61 [152]
3 years ago
7

Tính nồng độ mol của dung dịch khi có 160g dung dịch CusO4 tan trong 2 Lít dung dịch

Chemistry
1 answer:
Salsk061 [2.6K]3 years ago
7 0

Answer:

Tính nồng độ mol của dung dịch khi có 160g dung dịch CusO4 tan trong 2 Lít dung dịch

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Calculate the number of moles of iodine in 7.68×10^25 molecules of I2
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Answer:

<h2>127.57 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} \\

where n is the number of moles

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{7.68 \times  {10}^{25} }{6.02 \times  {10}^{23} }   \\  = 127.574750...

We have the final answer as

<h3>127.57 moles</h3>

Hope this helps you

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