<p><math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi>H</mi><mn>2</mn></msub><msub><mi>O</mi><mn>2</mn></msub></math>&nbsp;solution used for hair bleaching is sold as a solution of approximately 5.0g&nbsp;<math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi>H</mi><mn>2</mn></msub><msub><mi>O</mi><mn>2</mn></msub></math>&nbsp;per 100 mL of the solution. The molar mass of&nbsp;<math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi>H</mi><mn>2</mn></msub><msub><mi>O</mi><mn>2</mn></msub></math>&nbsp;is 34. The molarity of this solution is approximately.</p>