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Katen [24]
3 years ago
8

Find the mass in 2.6 mol of lithium bromide. (Hint:  You need to write the formula)

Chemistry
1 answer:
marissa [1.9K]3 years ago
6 0
Lithium Bromide : LiBr.

Molar mass of lithium bromide : 86.845 g/mol.

To find the mass of 2.6 mol of lithium bromide, simply multiply in order to cancel out the moles : 2.6 mol * 86.845 g / 1 mol = 225.8 grams.
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Answer:

124225.91 g of Na₃PO₄

Explanation:

From the question given above, the following data were obtained:

Number of atoms of Na₃PO₄ = 4.56×10²⁶ atoms

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From Avogadro's hypothesis,

6.02×10²³ atoms = 1 mole of Na₃PO₄

Next, we shall determine the mass of 1 mole of Na₃PO₄. This can be obtained as follow:

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Therefore,

4.56×10²⁶ atoms = (4.56×10²⁶ × 164)/6.02×10²³

4.56×10²⁶ atoms = 124225.91 g of Na₃PO₄

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