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Cloud [144]
3 years ago
8

What is the solution to the problem expressed to the correct number of significant figures?

Chemistry
1 answer:
Harlamova29_29 [7]3 years ago
5 0

Answer:

Answer: 1.69.

Explanation:

The solution = 12.0 / 7.11 = 1.687 = 1.69.2

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8 0
3 years ago
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Why do electrons gain energy?
Novay_Z [31]

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8 0
3 years ago
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Pls it’s urgent
Rainbow [258]

Answer:

0.02 moles.

Explanation:

volume of H₂ gas at R.T.P = 480 cm³

Where

R.T.P = room temperature and pressure

molar volume of gas at = 24000 cm³

no. of moles of hydrogen = ?

Solution:

formula Used

       no. of moles = volume of gas / molar volume

put values in above equation

         no. of moles = 480 cm³ / 24000 cm³/mol

         no. of moles = 0.02 mol

So,

no. of moles of hydrogen in 480 cm³ is 0.02 moles.

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Solid -(s)
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