The molarity of a solution obtained by mixing 750 mL of 0.5 (M) HCl with 250 mL of 2 (M) HCl will be :

Factorise: &nbsp;<math xmlns="http://www.w3.org/1998/Math/MathML"><mn>49</mn><msup><mi>x</mi><mn>2</mn></msup><mo>-</mo><mn>28</mn><mi>x</mi><mi>y</mi><mo>+</mo><mn>4</mn><msup><mi>y</mi><mn>2</mn></msup></math>

calculate using algebraic identities: 26<math xmlns="http://www.w3.org/1998/Math/MathML"><mo>×</mo></math>34 = __________&nbsp;

Solve:&nbsp;<math xmlns="http://www.w3.org/1998/Math/MathML"><mfrac><mrow><mn>0.86</mn><mo>×</mo><mn>0.86</mn><mo>×</mo><mn>0.86</mn><mo>+</mo><mn>0.14</mn><mo>×</mo><mn>0.14</mn><mo>×</mo><mn>0.14</mn></mrow><mrow><mn>0.86</mn><mo>×</mo><mn>0.86</mn><mo>−</mo><mn>0.86</mn><mo>×</mo><mn>0.14</mn><mo>+</mo><mn>0.14</mn><mo>×</mo><mn>0.14</mn></mrow></mfrac><mo>=</mo></math>

The value of <math><mrow><msup><mrow><mrow><mo>(</mo><mrow><mn>103</mn></mrow><mo>)</mo></mrow></mrow><mn>3</mn></msup><mo>+</mo><msup><mrow><mrow><mo>(</mo><mrow><mn>97</mn></mrow><mo>)</mo></mrow></mrow><mn>3</mn></msup></mrow></math><xml> </xml> is

The molarity of a solution obtained by mixing 750 mL of 0.5 (M) HCl with 250 mL of 2 (M) HCl will be :

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