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Marina CMI [18]
4 years ago
6

2.822 mol of nickel has _________ atoms of nickel. (Enter just the number for this one.)

Chemistry
1 answer:
Irina-Kira [14]4 years ago
6 0

Hello!

To find the number of atoms in 2.822 moles of nickel, we need to multiply it by Avogadro's number. Avogadro's number is 6.02 x 10^23 atoms.

2.822 moles x (6.02 x 10^23) ≈ 1.698844 x 10^24

Therefore, there are about 1.70 x 10^24 atoms (according to the number of significant figures) in 2.822 moles of nickel.

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vfiekz [6]

Answer:

density=6.74g/ml

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d=6.74g/ml

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<em><u>I </u></em><em><u>hope</u></em><em><u> </u></em><em><u>this </u></em><em><u>is </u></em><em><u>helpful</u></em>

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Answer:

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To find "x" we have to use the hydrogen percentage in the sample, 7.05 % H.

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molecular weight of Na₂CO₃ · xH₂O = 106 + 18x  g/mole

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then in  100 grams of Na₂CO₃ · xH₂O we have 7.05 grams of hydrogen

106 + 18x = (100 × 2x) / 7.05

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106 = 10.4x

x = 106 / 10.4

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The formula for the washing soda is Na₂CO₃ · 10H₂O.

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<h3>Further explanation</h3>

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