320mg of a sample of magnessium having a coating of its oxide required 20mL of 0.1M hydrochloric acid for the complete neutralisation of the latter. The composition of the sample is:

0.66 g of H_(3)PO_(2) will require x ml of 0.1M NaOH for complete neutralization. X is

0.84 g. of an acid of Molecular weight 225 is present in 100ml of the solution. 25ml of this solution required 28ml of N/10 NaOH solution for complete neutralisation. The basicity of the acid is

0.63 grams of a dioic acid required 50mL of 0.2M NaOH for neutralisation. Calculate the molar mass of acid .

0.84 g, of an acid of Molecular weight 225 is present in 100ml of the solution. 25ml of this solution required 28 ml of N/10 NaOH solution for complete neutralisation. The basicity of the acid is

0.16 gm of organic acid required 25 ml of (N)/(10) NaOH for complete neutralization. (M. wt of acids is 128). Then the basicity of acid is

29.5mg of an organic compound containing nitrogen was digested according to Kjeldahl's method and the evolved ammonia was absorbed in 20mL of 0.1M HCl solution. The excess of the acid required 15mL of 0.1M NaOH solution for complete neutralization. The percentage of nitrogen in the compound is

28 mg of an organic compound containing nitrogen was digested according to Kjeldahl's method and the evolved ammonia was absored in 20 mL of 0.1 M HCl solution. The excess of the acid required 15 mL of 0.1 M NaOH solution for complete neutralization. Then the percentage of 'N' is the compound is

The ammonia evolved by the treatment of 0.30 g of an organic compound for the estimation of nitrogen was passed in 100 ml of 0.1 M sulphuric acid. The excess of acid required 20 mL of 0.5 M solution hydroxide solution for complete neutralization. The organic compound is