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ki77a [65]
3 years ago
15

How many atoms are in .190g of P2O5?

Chemistry
1 answer:
jasenka [17]3 years ago
7 0
To go from grams to atoms, you first have to convert to moles and them to atoms. To do that, divide the amount in grams by the atomic weight (141.95 in this case) and then multiply by avagadros number (6.022×10^23). After you do all of this, you should get 8.06×10^20.
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A chemist adds 215.0mL of a 6.0x10^−5/mmolL mercury(II) iodide HgI2 solution to a reaction flask. Calculate the micromoles of me
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<h3>Further explanation</h3>

Given

215.0mL of a 6.0x10⁻⁵mmol/L HgI₂

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micromoles of HgI₂

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Molarity(M) = moles of solute per liters of solution

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3 years ago
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