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29/09/2020 8:46 pm
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Which of the following pairs of solutions are expected to be isotonic, temperature being the same?
(a) 0.1 M glucose and 0.1M C6H5N+H3Cl-
(b) 0.1 M NaCl and 0.05 M BaCl2
(c) 0.1 M Na2SO4 and 0.1 M KNO3
(d) 0.1 M BaCl2 and 0.075 M FeCl3
1 Answer
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29/09/2020 8:47 pm
(d) 0.1 M BaCl2 and 0.075 M FeCl3
Explanation:
Effective molarity of BaCl2 = 3 × 0.1 = 0.3 ;
effective molarity of FeCl3 = 4 × 0.075 = 0.3