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tangare [24]
4 years ago
10

Calculate the number of water molecules formed of 0.562 moles of oxygen gas in

Chemistry
1 answer:
CaHeK987 [17]4 years ago
6 0

Answer:

6.77 · 10²³ molecules H₂O

Explanation:

Step 1: Define

2H₂ (g) + O₂ (g) → 2H₂O (g)

0.562 mol O₂

Step 2: Use Stoichiometry

0.562 \hspace{3} mol  \hspace{3} O_2(\frac{2  \hspace{3} mol  \hspace{3} H_2O}{1  \hspace{3} mol  \hspace{3} O_2} ) = 1.124 mol H₂O

1.124  \hspace{3} mol  \hspace{3} H_2O(\frac{6.02(10)^{23}  \hspace{3} molecules  \hspace{3} H_2O}{1  \hspace{3} mol  \hspace{3} H_2O} ) = 6.76648 · 10²³ molecules H₂O

Step 3: Simplify

We have 3 sig figs.

6.76648 · 10²³ molecules H₂O ≈ 6.77 · 10²³ molecules H₂O

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Answer:

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Explanation:

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After isolating the pure crystals on a Hirsch funnel, wash them with solvent, but they dissolve and disappear into the funnel. W
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Why should scientists be able to replicate an investigation?
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Answer:

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madreJ [45]

Answer:

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Explanation:

hope it helps  :)

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