<p>The ratio of mass per cent of C and H of an organic compound&nbsp;<math xmlns="http://www.w3.org/1998/Math/MathML"><mfenced><mrow><msub><mi>C</mi><mi>x</mi></msub><msub><mi>H</mi><mi>y</mi></msub><msub><mi>O</mi><mi>z</mi></msub></mrow></mfenced></math>&nbsp;is 6 : 1. If one molecule of the compound&nbsp;<math xmlns="http://www.w3.org/1998/Math/MathML"><mfenced><mrow><msub><mi>C</mi><mi>x</mi></msub><msub><mi>H</mi><mi>y</mi></msub><msub><mi>O</mi><mi>z</mi></msub></mrow></mfenced></math>&nbsp;contains half as much oxygen as required to burn one molecule of compound&nbsp;<math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi>C</mi><mi>x</mi></msub><msub><mi>H</mi><mi>y</mi></msub></math>&nbsp;completely to&nbsp;<math xmlns="http://www.w3.org/1998/Math/MathML"><mi>C</mi><msub><mi>O</mi><mn>2</mn></msub><mo>&#160;</mo><mi>a</mi><mi>n</mi><mi>d</mi><mo>&#160;</mo><msub><mi>H</mi><mn>2</mn></msub><mi>O</mi></math>&nbsp;. The empirical formula of compound&nbsp;<math xmlns="http://www.w3.org/1998/Math/MathML"><msub><mi>C</mi><mi>x</mi></msub><msub><mi>H</mi><mi>y</mi></msub><msub><mi>O</mi><mi>z</mi></msub></math>&nbsp;is:</p>