How many molecules of hydrogen are formed in the following reaction:   Solid sodium reacts violently with water, producing heat, hydrogen gas and sodium hydroxide. 48.7 g of sodium are added to...

How many molecules of hydrogen are formed in the following reaction:

 

Solid sodium reacts violently with water, producing heat, hydrogen gas and sodium hydroxide. 48.7 g of sodium are added to water. The reaction is 2Na + 2H2O --> 2NaOH + H2.

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For sodium reacting with water we have the equation:

2Na (s) + 2H2O -> 2NaOH + H2

One mole of sodium reacts with one mole of water to give one mole of NaOH and half a mole of H2.

The molar mass of sodium is 22.98

48.7...

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