a chemical equation for the reaction between calcium hydroxide, and sulfuric acid, is shown. the masses of…

a chemical equation for the reaction between calcium hydroxide, and sulfuric acid, is shown. the masses of some of the reactants and products are given in grams.\nca(oh)₂ + h₂so₄ → caso₄ + 2h₂o\n74 g ? 136 g 36 g\nhow many grams of sulfuric acid were used in the reaction?\npossible points: 7.69\n○ 62 g\n○ 98 g\n○ 36 g\n○ 100 g

a chemical equation for the reaction between calcium hydroxide, and sulfuric acid, is shown. the masses of some of the reactants and products are given in grams.\nca(oh)₂ + h₂so₄ → caso₄ + 2h₂o\n74 g ? 136 g 36 g\nhow many grams of sulfuric acid were used in the reaction?\npossible points: 7.69\n○ 62 g\n○ 98 g\n○ 36 g\n○ 100 g

Answer

Explanation:

Step1: Apply law of conservation of mass

According to the law of conservation of mass, the total mass of reactants equals the total mass of products.

Step2: Set up mass - balance equation

Let the mass of sulfuric acid be $x$ grams. The mass of calcium hydroxide is 74 g, the mass of calcium sulfate is 136 g and the mass of water is 36 g. So, $74 + x=136 + 36$.

Step3: Solve for $x$

$x=(136 + 36)-74$. $x = 98$ g.

Answer:

98 g