STD 5 GUJARATI CH 10 SV ADHYAYN POTHI

The weight of CH_(3)COONa needed to add in 1 litre ( N )/( 10 ) CH_(3) COOH to obtain a buffer solution of pH value 4 is ( Given K_(a) = 1.8 xx 10^(-5) )

How many of the following compounds would give Iodoform test (1) s CH_(3) - CO - CH_(2) - CO - OCH_(3) (2) C_(6) H_(5) - CO - CH_(2) - CO - C_(6)H_(5) (3) CH_(3) - CHCl - CH_(2) - CH_(3) (4) CH_(3) - CHNH_(2) - CH_(3) (5) CH_(3) - CO - CH_(2)I (6) CH_(3) - CO - O - CO - CH_(3) (7) CH_(3) - CO - O - CH_(3) (8) CH_(3) - CO - Cl (9) CH_(3) - CHOH - CH_(2) - CH_(3) (10) CH_(3) - CO - CH_(2) - CHOH - CH_(3)

DeltaSHR~DeltaSVU . In DeltaSHR, SH=4.5cm, HR=5.2cm, SR=5.8cm and (SH)/(SV)=(3)/(5) construct DeltaSVU.

Calculate pH of the solution which is 10^(-1)M in HCl & 10^(-3)M in CH_(3)COOH[K_(a)=2xx10^(-5)] .Also calculate [H^(+)] form CH_(3)COOH .