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I have a few questions relating to ph and whatnot.. 1) Calculate the pH of 0.0010...

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Chemistry

I have a few questions relating to ph and whatnot..

1) Calculate the pH of 0.0010 M Ca(OH)2 solution. (to2 decimal places)

2) Determine the pH of a KOH solution made by mixing 0.251 g KOHwith enough water to make 1.00 � 102 mL of solution.

3) Calculate the pH of 0.0171 butanoic acid, Ka=1.52x 10-5. Answer in 4 significant figures.

4) Calculate the pH of 0.00000M C5H5Nsolution. Kb=1.5 x 10-9. Answer in 3 decimalplaces.

5) Calculate the pKa of a 0.080M HOCl solution with a pH of3.22.

6) A solution containing NH3(aq) andNH4Cl(aq) has a pH of 9.5. What is the[NH3]/[NH4+] ratio in thissolution? For ammonia, Kb = 1.8 � 10�5.

Answer & Explanation Solved by verified expert
4.5 Ratings (728 Votes)
1 Since CaOH2 is a strong electrolyte it is dissociated completely when dissolved in water CaOH2 Ca2aq 2OH 00010M 200010M 00010M 00020M OH 00020 M pOH logOH log00020 270 pH 14 pOH 14 270 1130 answer 2    See Answer
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