Problem- part 1 equal volumes of 0250 m weak base kb20x10-9, Chemistry

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Problem- part 1 equal volumes of 0250 m weak base kb20x10-9

Problem- Part 1 Equal volumes of 0.250 M weak base (kb=2.0x10-9) and 0.250 M HCL are mixed. Calculate the Ph of the resulting solution.

Part 2 : A certain weak base has a Kb of 8.80x10-7. What concentration of this base will produce a pH of 10.04

Part 3: If the Ka of a monoprotic weak acid is 7.8 10-6 what is the pH of a 0.30 M soution of this acid

I am not able to determine the correct answer for the above question please helps me to get the correct answer

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Chemistry: Problem- part 1 equal volumes of 0250 m weak base kb20x10-9

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Chemistry: Problem- part 1 equal volumes of 0250 m weak base kb20x10-9

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