Some Basic Concepts of Chemistry · Question 49

AIPMT 2001MCQEasy📈 Topic in 25% papers+4−1

Molarity of liquid HCl, if density of solution is 1.17 g/cc, is

36.5
18.25
32.05
42.10

Answer

(3) 32.05

Solution

Liquid HCl is pure HCl, so the whole mass is solute.

Mass of 1 L (1000 cc) = 1000 1.17 = 1170 g

Molar mass of HCl = 36.5 g mol-1

∴ Molarity = 117036.5

= 32.05 M

Answer: (3)

AIPMT 2001

Keep practising — Some Basic Concepts of Chemistry

Specific volume of cylindrical virus particle is 6.02 10-2 cc/g whose radius and length are 7 A and 10 A respectively. If NA = 6.02 1023, find molecular weight of virus.

15.4 kg/mol
1.54 104 kg/mol
3.08 104 kg/mol
3.08 103 kg/mol

AIPMT 2001

Volume of CO2 obtained by the complete decomposition of 9.85 g of BaCO3 is

2.24 L
1.118 L
0.84 L
0.56 L

AIPMT 2000

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