Answer all parts. (a) discuss the trend of conductivity values for the various ions given below. ) 4
cation ionic radius (å) conductivity (ms m2 mol−1 )
h+ - 34.96
li+ 0.69 3.87
na+ 0.97 5.01
k+ 1.33 7.35 [15 marks]
(b) at 25°c the molar conductivity (λm) of 0.01 mol dm–3 aqueous acetic acid is 1.62 × 10−3 s m2 mol–1 and the molar conductivity at infinite dilution (λ°) is 39.07 × 10−3 s m2 mol-1. calculate the degree of dissociation (α) and the ph and pka of the 0.01 m acetic acid solution.
Answers: 3
Chemistry, 21.06.2019 14:00
Consider the balanced equation below. n2h4 + 2h2o2 n2 + 4h2o what are the mole ratios of hydrazine (n2h4) to hydrogen peroxide (h2o2) and hydrazine to water? 1: 2 and 1: 4 1: 3 and 1: 4 1: 2 and 3: 5 1: 3 and 3: 5
Answers: 3
Chemistry, 22.06.2019 03:30
If a solution is considered basic, then a) the hydroxide ion and hydronium ion concentrations are equal. b) the hydroxide ion concentration is less than the hydronium ion concentration. c) the hydronium ion concentration is greater than the hydroxide ion concentration. d) the hydroxide ion concentration is greater than the hydronium ion concentration.
Answers: 1
Chemistry, 22.06.2019 17:40
How much heat is added if 0.814g of water increase in temperature by 0.351 degree c?
Answers: 3
Answer all parts. (a) discuss the trend of conductivity values for the various ions given below. ) 4...
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