Calculate the mass of sodium silicate that is formed by heating 120 g of silicon oxide (lV) with sodium hydroxide.

univerkov | August 9, 2021 | education

Given:
m (SiO2) = 120 g

To find:
m (Na2SiO3) -?

1) SiO2 + 2NaOH => Na2SiO3 + H2O;
2) n (SiO2) = m / M = 120/60 = 2 mol;
3) n (Na2SiO3) = n (SiO2) = 2 mol;
4) m (Na2SiO3) = n * M = 2 * 122 = 244 g.

Answer: The mass of Na2SiO3 is 244 g.

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