A sample of `H_(2) SO_(4)` (density `1.787 g mL^(-1)`) si labelled as 86% by weight. What is the molarity of acid? What volume of acid has to be used to make `1 L` of `0.2 M H_(2) SO_(4)` ?

Explanation

To solve the problem, we need to find the molarity of the sulfuric acid (H₂SO₄) solution and then determine the volume of this solution required to prepare 1 L of a 0.2 M H₂SO₄ solution. Let's break it down step by step.

### Step 1: Calculate the mass of H₂SO₄ in 100 g of the solution
Given that the solution is 86% by weight H₂SO₄, if we assume we have 100 g of the solution:
- Mass of H₂SO₄ = 86% of 100 g = 86 g

**Hint:** To find the mass of a component in a mixture, multiply the total mass by the percentage (in decimal form) of that component.

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