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 ï¿½ 10² mL of solution.
3) Calculate the pH of 0.0171 butanoic acid, K_a=1.52x 10^-5. Answer in 4 significant figures.
4) Calculate the pH of 0.00000M C₅H₅Nsolution. K_b=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, K_b = 1.8 ï¿½ 10^ï¿½5.

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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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