3 years ago

A) What mass in grams of H20 is needed to react completely with 40.0 g of

Chemistry

1 answer:

Deffense [45]3 years ago

5 0

Answer:

$m_{H_2O}=9.24gH_2O$

Explanation:

Hello there!

In this case, since there is a 2:2 mole ratio between sodium peroxide and water according to the given reaction, it is possible to apply the following stoichiometric setup for the calculation of the required mass of water:

$m_{H_2O}=40.0gNa_O_2*\frac{1molNa_O_2}{78gNa_O_2}*\frac{2molH_2O}{2molNa_O_2} *\frac{18.02gH_2O}{1molH_2O} \\\\m_{H_2O}=9.24gH_2O$

Best regards!

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