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enyata [817]
2 years ago
11

Four molecules of solid sodium react with one molecule of oxygen gas to yield 2 molecules of solid Sodium oxide.​

Chemistry
1 answer:
Varvara68 [4.7K]2 years ago
7 0

Answer:

reaction?

Explanation:

4na + o2 → 2na2o

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How many lead (Pb) atoms are in a 5.32 g sample of pure lead?
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Answer:

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Explanation:

We'll begin by calculating the number of mole in 5.32 g of pure lead (Pb). This can be obtained as follow:

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Mole of Pb = 0.0257 mole

Finally, we shall determine the number of molecules in 0.0257 mole of Pb. This can be obtained as follow:

From Avogadro's hypothesis,

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