Homework Answers
Answer option D) 1.0 * 10^-3 M of HI
HI is strong acid so all HI molecules would be ionized. Hence concentration of H+ ions also 1.0 * 10^-3 M
pH = - log (1.0 * 10^-3) => 3.0
Remaining all are weak acid hence dissociation into ions will not be 100 % . So concentration of H+ ions would be less than 1.0 * 10 ^-3 M. Therefore pH would be greater than 3.0
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13. Which of the following solutions will have a pH of 3.0? (a) 1.0 × 10-3...
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21. Which of the following solutions will be the best buffer at a pH of 9.26?...
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plz solve and show work
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21. Which of the following solutions will be the best buffer at a pH of 9.26? (K, for HC2H,02 is 1.8 × 10-5, Kb for NH3 is 1.8 × 10-5.) A) 0.20 M NH3 and 0.20 MNH4Cl B) 3.0 M HC2H3O2 and 3.0 M NH4CI C) 0.20 M HC2H302 and 0.20 M NaC2H302 D) 3.0 M NH3 and 3.0 M NH4CI E) 3.0 M HC2H302 and 3.0 M NH3 PTS: 1 DIF: moderate TOP: 8.2 8.3 ANS: D KEY: general...
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plz solve and show work
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please answer 1 and both parts
of 2
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