50 ml of of 12 N HCl and 40 ml of were mixed together and the volume of the mixture was made 1000 ml by adding water. The normality of the resulting solution will be
(1) 1 N
(2) 2 N
(3) 3 N
(4) 4 N
100 ml of 0.3 N HCl is mixed with 200 ml of 0.6 N H2SO4. The final normality of the resulting solution will be
(1) 0.1 N
(2) 0.2 N
(3) 0.3 N
(4) 0.5 N
An aqueous solution of 6.3 g oxalic acid dihydrate is made up to 250 ml. The volume of 0.1 N NaOH required to completely neutralize 10 ml of this solution is [IIT 2001; CPMT 1986]
(1) 40 ml
(2) 20 ml
(3) 10 ml
(4) 4 ml
10.6 g of Na2CO3 was exactly neutralised by 100 ml of H2SO4 solution. Its normality is
(1) 1 N
(2) 2 N
(3) 1.5 N
(4) 0.5 N
The molarity of pure water (d = 1 g/l) is -
1. 555 M
2. 5.55 M
3. 55.5 M
4. None of the above
Equal volumes of and 0.2 M NaCl are mixed. The concentration of ions in the mixture will be
(1) 0.1 M
(2) 0.05 M
(3) 0.2 M
(4) 0.15 M
The molarity of H2SO4 solution that has a density of 1.84 g/cc at 35°C and contains 98% by weight is
(1) 4.18 M
(2) 8.14 M
(3) 18.4 M
(4) 18 M
Amount of oxalic acid in grams that is required to obtain 250 ml of a semi-molar solution is
(1) 17.25 g
(2) 17.00 g
(3) 15.75 g
(4) 15.00 g
Volume of 10 M HCl should be diluted with water to prepare 2.00 L of 5 M HCl is
(1) 2 L
(2) 1.5 L
(3) 1.00 L
(4) 0.5 L
The volume of 95% H2SO4 (density = 1.85 g cm–3) needed to prepare 100 cm3 of 15% solution of H2SO4 (density = 1.10 g cm3) will be
(1) 5 cc
(2) 7.5 cc
(3) 9.4 cc
(4) 12.4 cc