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19 Nov 2019
I need help in doing theses 4 problems, please in full detail. And thank you in advance! :)
Determine the freezing point of a 0.10 mol kg^-1 aqueous solution of a weak electrolyte that is 7.5% dissociated into two ions. A 0.124 m CCl _3COOH(aq) solution has a freezing point of -0.423 degree C. What is the percentage deprotonation of the acid? What is the osmotic pressure at 20.degree C of (a) 0.010 M C _12 H _22 O _11(aq); (b) 1.0 M HCl(aq); (c) 0.010 M CaCl _2(aq)? Assume complete dissociation of the CaCl _2. Which of the following solutions has the highest osmotic pressure at 50.degree C: (a) 0.10 M KCI(aq); (b) 0.60 M CO(NH _2) _2(aq); (c) 0.30 M K _2SO _4(aq)? Justify your answer by calculating the osmotic pressure of each solution.
I need help in doing theses 4 problems, please in full detail. And thank you in advance! :)
Determine the freezing point of a 0.10 mol kg^-1 aqueous solution of a weak electrolyte that is 7.5% dissociated into two ions. A 0.124 m CCl _3COOH(aq) solution has a freezing point of -0.423 degree C. What is the percentage deprotonation of the acid? What is the osmotic pressure at 20.degree C of (a) 0.010 M C _12 H _22 O _11(aq); (b) 1.0 M HCl(aq); (c) 0.010 M CaCl _2(aq)? Assume complete dissociation of the CaCl _2. Which of the following solutions has the highest osmotic pressure at 50.degree C: (a) 0.10 M KCI(aq); (b) 0.60 M CO(NH _2) _2(aq); (c) 0.30 M K _2SO _4(aq)? Justify your answer by calculating the osmotic pressure of each solution.
Sixta KovacekLv2
28 Aug 2019