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Question 5 Not complete What is the pH of an aqueous solution composed of 0.52 M NHa* and 0.75 M NH3? (K, of NHa* = 5.6 x 10-
tion 6 The K, of bicarbonate ion, HCO,, is 4.8 x 10- What CO,?/HCO,1 ratio is necessary to make a buffer with a pH of 11.30?
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15. For Nha on 16 NH - NHg+HO Ka = 5.6810 [NN ] Kar - Taking [NHO] [NHD] [H0] [H0] = ka. - (NH3] - [NHO] logarithm on both s

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