[" What oolume of "0.1M(NH_(4))_(2)SO_(4)],[" solution should be added to "100ml" of "],[" 0."MNH_(4)OH" solution to produce a "],[" bufter solutions of "pH=8.7],[" (Pk6NH "OH=4.7)]

What volume of 0.1 M HCOONa solution should be added to 50ml of 0.05 M formic acid to produce a buffer solution of pH=4.0 , pK_(a) of formic acid =3.7 ?

Amount of (NH_(4))_(2)SO_(4) which must be added to 50mL of 0.2 M NH_(4)OH solution to yield a solution of pH 9.26 is ( pK_(b) of NH_(4)OH=4.74 )

20mL of 0.1M(H_(2)SO_(4)) solution is added to 30mL of 0.2M(NH_(4)OH) soulution. The ._(p)H of the resultant mixture is : [(p)k_(b) " of " NH_(4)OH=4.7] .

20mL of 0.1M(H_(2)SO_(4)) solution is added to 30mL of 0.2M(NH_(4)OH) soulution. The ._(p)H of the resultant mixture is : [._(p)k_(b) " of " NH_(4)OH=4.7] .

In what volume ratio should you mix 1.0 M solution of NH_(4)CI and NH_(3) to produce a buffer solution of pH 9.80 [pK_(b) (NH_(3)) = 4.74]

In what volume ratio should you mix 1.0 M solution of NH_(4)CI and NH_(3) to produce a buffer solution of pH 9.80 [pK_(b) (NH_(3)) = 4.74]

Calculate the amount of (NH_(4))_(2)SO_(4) in grams which must be added to 500ml of 0.2MNH_(3) to give a solution of pH=9.3 .Given pK_(b) for NH_(3)=4.7 .

To prepare a buffer of pH 8.26 , amount of (NH_(4))_(2)SO_(4) to be added into 500mL of 0.01M NH_(4)OH solution [pK_(a)(NH_(4)^(+))=9.26] is:

To prepare a buffer of pH 8.26 , amount of (NH_(4))_(2)SO_(4) to be added into 500mL of 0.01M NH_(4)OH solution [pK_(a)(NH_(4)^(+))=9.26] is:

What will be the amount of (NH_(4))_(2)SO_(4) (in g) which must be added to 500 mL of 0.2 M NH_(4)OH to yield a solution of pH 9.35? ["Given," pK_(a)"of "NH_(4)^(+)=9.26,pK_(b)NH_(4)OH=14-pK_(a)(NH_(4)^(+))]