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denis23 [38]
3 years ago
9

A reaction produces 0.837 moles of H 2 O . How many molecules of H 2 O are produced?

Chemistry
1 answer:
AleksAgata [21]3 years ago
3 0

Answer:

5.04 * 10^2^3

Explanation:

The original calculation to find the number of moles which is n=\frac{m}{M} can be rearranged to give the equation m=nM. Therefore the amount of molecules can be found by m = 0.837 *6.02*10^2^3 (multiplying by Avogadro's Number)

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Answer:

Molarity NaOH = 0.85M (2 sig figs)

Explanation:

48.0ml(0.220M H₂SO₄) + 25ml(Xmolar NaOH)H₂SO₄ + 2NaOH => Na₂SO₄ + 2H₂O

2(molarity x volume) H₂SO₄ = (molarity x volume) NaOH

2(0.220M x 48.0ml) = 25.0ml x Molarity NaOH

Molarity NaOH = 2(0.220M x 48.0ml)/25.0ml = 0.8448M ≅ 0.85M (2 sig figs)

6 0
3 years ago
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0.529

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