50 ml of $10N\text{\hspace{0.17em}}{H}_{2}S{O}_{4},\text{\hspace{0.17em}}25ml$ of 12 N HCl and 40 ml of $5N\text{\hspace{0.17em}}HN{O}_{3}$ 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

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Difficulty Level:

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 [DPMT 1994]

(1) 0.1 N

(2) 0.2 N

(3) 0.3 N

(4) 0.5 N

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Difficulty Level:

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

Concept Questions :-

Concentration Term and Numericals
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Difficulty Level:

10.6 g of Na2CO3 was exactly neutralised by 100 ml of H2SO4 solution. Its normality is

(a) 1 N

(2) 2 N

(3) 1.5 N

(4) 0.5 N

Concept Questions :-

Concentration Term and Numericals
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Difficulty Level:

The molarity of pure water (d = 1 g/l) is [KCET 1993; CMC 1991, CPMT 1974, 88,90]

(1) 555 M

(2) 5.55 M

(3) 55.5 M

(4) None

Concept Questions :-

Concentration Term and Numericals
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Difficulty Level:

Equal volumes of $0.1\mathrm{M}\text{\hspace{0.17em}}{\mathrm{AgNO}}_{3}$ and 0.2 M NaCl are mixed. The concentration of ${\mathrm{NO}}_{3}^{-}$ ions in the mixture will be

(1) 0.1 M

(2) 0.05 M

(3) 0.2 M

(4) 0.15 M

Concept Questions :-

Concentration Term and Numericals
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Difficulty Level:

The molarity of H2SO4 solution that has a density of 1.84 g/cc at 35°C and contains 98% by weight is [CPMT 1983, 2000; CBSE 1996, 2000; AIIMS 2001]

(1) 4.18 M

(2) 8.14 M

(3) 18.4 M

(4) 18 M

Concept Questions :-

Concentration Term and Numericals
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Difficulty Level:

Amount of oxalic acid $\left({\left(\mathrm{COOH}\right)}_{2}.2{\mathrm{H}}_{2}\mathrm{O}\right)$ 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

Concept Questions :-

Concentration Term and Numericals
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Difficulty Level:

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

Concept Questions :-

Concentration Term and Numericals
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Difficulty Level:

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 [CPMT 1983]

(1) 5 cc

(2) 7.5 cc

(3) 9.4 cc

(4) 12.4 cc

Concept Questions :-

Concentration Term and Numericals