Question

73
64. What is the concentration of nitrate ions if equal volumes
of 0.1 M AgNO, and 0.1 M NaCl are mixed together?
(a) 0.1 N
(b) 0.05 M
(c) 0.2 M
(d) 0.25 M
65. A solution containing Na,Co, and NaOH requires
300 ml of 0.1 N HCl using phenolphthalein as an
indicator. Methyl orange is then added to the above
titrated solution when a further 25 ml of 0.2 N HCl is
required. The amount of NaOH present in solution is
(NaOH = 40, Na CO2 = 106)
(a) 1.0 g
(b) 0.6 g
(c) 1.5 g
(d) 2.0 g
66. Which of the following cannot give iodometric titra-
tions?
(b) Pb2+
(o cu 2+
(d) Agt
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(a) Fe3+​

Answer 1

Answer:

1.5

Explanation:

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