Determine the mass and amount of the salt substance formed as a result of the reaction of the compound of sodium oxide (/) and sulfur oxide (V /), if the mass of sodium oxide = 5g
1. Let’s compose the equation of the proceeding reaction:
Na2O + SO3 = Na2SO4;
2. find the chemical amount of sodium oxide:
n (Na2O) = m (Na2O): M (Na2O);
M (Na2O) = 23 * 2 + 16 = 62 g / mol;
n (Na2O) = 5: 62 = 0.08 mol;
3. Determine the chemical amount of the resulting sodium sulfate:
n (Na2SO4) = n (Na2O) = 0.08 mol;
4. find the mass of salt:
m (Na2SO4) = n (Na2SO4) * M (Na2SO4);
M (Na2SO4) = 23 * 2 + 32 + 4 * 16 = 142 g / mol;
m (Na2SO4) = 0.08 * 142 = 11.36 g.
Answer: 0.08 mol; 11.36 g.
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