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gtnhenbr [62]
3 years ago
11

Calculate the percentage by mass of cerium in cerium carbonate​

Chemistry
1 answer:
levacccp [35]3 years ago
5 0

Answer:

60.88%

Explanation:

The <em>formula for cerium carbonate</em> is Ce₂(CO₃)₃.

Let's <u>assume we have 1 mol of cerium carbonate</u>. The total mass would be equal to the molar mass of Ce₂(CO₃)₃, 460.25 g/mol.

Out of those 460.25 g, the mass <u>corresponding to cerium would be</u>:

  • 2 * Molar mass of Ce = 2 * 140.11 g/mol = 280.22 g

Now we can <u>calculate the percentage by mass of cerium</u>:

  • % mass = 280.22 / 460.25 * 100% = 60.88%
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Calcium carbonate consist of one atom of calcium, one atom of carbon and three atoms of oxygen. Thus, its molecular mass would be,

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The formula of HNO₃:

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Explanation:

Hope this helps!

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