[" 4."0.1" mole "HCl" is dissolved in distilled wate "],[5.8quad " Determine "pK_(a)(H_(2)O)+pK_(a)(H_(3)O^(+))]

Caculate [H^(+)] in a solution that is 0.1 M both in CH_(3)COOHandCH_(3)COONa (pK_(a)CH_(3)COOH=4.7) :-

A buffer solution of 0.080M Na_(2)HPO_(4) and 0.020 M Na_(3)PO_(4) is prepared. The electrolytic oxidation of 1.0 mmol RNHOH is carried out in 100mL buffer to give RNHOH + H_(2)O rarr RNO_(2) + 4H^(o+) + 4e^(-) Calculate approximate pH of the solution after oxidation is complete pK_(a_(2)), pK_(a_(2)) , and pK_(a_(3)) of H_(3)PO_(4) are 2.12,7.20 , and 12.0 , respectively.

The integral enthalpy of solution in kJ of one mole of H_(2)SO_(4) dissolved in n mole of water is given by : DeltaH_(s)=(75.6xxn)/(n+1.8) Calculate DeltaH for the following processes : (a) 1 mole of H_(2)SO_(4) dissolved in 2 mole of H_(2)O . (b) 1 mole of H_(2)SO_(4) dissolved in 7 mole of H_(2)O . (c ) 1 mole of H_(2)SO_(4) dissolved in 5 mole of H_(2)O . (d) solution (a) dissolved in 5 mole of H_(2)O . (e) 1 mole of H_(2)SO_(4) dissolved in excess of H_(2)O .

50 mL of 0.05 M Na_(2)CO_(3) is titrated against 0.1 M HCl. On adding 40 mL of HCl, pH of the solution will be [Given : For H_(2)CO_(3),pK_(a1)=6.35,pK_(a2)=10.33,log 3=0.477,log 2=0.30]

50 mL of 0.05 M Na_(2)CO_(3) is titrated against 0.1 M HCl. On adding 40 mL of HCl, pH of the solution will be [Given : For H_(2)CO_(3),pK_(a1)=6.35,pK_(a2)=10.33,log 3=0.477,log 2=0.30]

The pH of blood is 7.4 . What is the ratio of [(HPO_(4)^(2-))/(H_(2)PO_(4)^(-))] in the blood. pK_(a)(H_(2)PO_(4)^(-))=7.1

The pH of blood is 7.4 . What is the ratio of [(HPO_(4)^(2-))/(H_(2)PO_(4)^(-))] in the blood. pK_(a)(H_(2)PO_(4)^(-))=7.1