How much salt is formed if 500 g of 30% lithium hydroxide solution was taken into the reaction with sulfuric acid?
| September 8, 2021 | education
1. The mass of the solution and the mass fraction of the solute in the solution are known. We find the mass of the substance by the formula.
2.Calculate the amount of lithium hydroxide substance.
3. We make the equation of the reaction between lithium hydroxide and sulfuric acid. We find the quantitative ratios of the starting materials and reaction products.
It follows from the reaction equation that lithium hydroxide and lithium sulfate react 2: 1 (2 mol of lithium hydroxide and 1 mol of lithium sulfate). The amount of lithium sulfate substance is 2 times less than that of hydroxide.
n (salt) = 3.125 mol.
4. Find the mass of lithium sulfate by the formula.
Answer: m (salt) = 343.75 g.
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