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inysia [295]
3 years ago
13

Can I have Help? please

Chemistry
2 answers:
Annette [7]3 years ago
8 0

Answer: 2.77

Explanation:

enot [183]3 years ago
3 0

Answer:

A

Explanation:

density = mass÷volume

mass = 69.2g

volume = 32.9-25 = 7.9ml

density = 69.2÷7.9 = 8.76g/ml

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<h3>What is a chemical shift? </h3>

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1 year ago
I need help solving this for chemistry. Don’t know where to start:/
Juli2301 [7.4K]
1 electron has charge =1.602* 10⁻¹⁹ C
1 mole of electrons have 1.602* 10⁻¹⁹*6.02*10²³C = 9.64*10⁴ C/1mol

One ion Co²⁺   takes 2e⁻ to become Co⁰.
1 mol of Co²⁺  ions take 2 mole of e⁻ to become Co⁰, so
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3 years ago
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7 0
3 years ago
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