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lapo4ka [179]
3 years ago
10

Read the given equation. 2Na + 2H2O → 2NaOH + H2

Chemistry
2 answers:
PolarNik [594]3 years ago
8 0
<h3>Answer:</h3>

                17.25 g of Na

<h3>Explanation:</h3>

                        The balance chemical equation is as follow,

                              2 Na + 2 H₂O    →    2 NaOH + H₂

As we know that one mole of any Ideal gas at standard temperature and pressure occupies exactly 22.4 dm³ (1 L) volume.

Then, according to equation,

            22.4 L (1 mol) H₂ was produced by  =  46 g (2 mol) of Na

Then,

                     8.40 L H₂ gas will be produced by  =  X g of Na

Solving for X,

                      X =  (8.40 L × 46 g) ÷ 22.4 L

                      X =  17.25 g of Na

Allisa [31]3 years ago
3 0

Answer:

A) 17.2 grams

Explanation:

I took the quiz and A was correct!

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