Which of the following concentration factors is affected by change in temperature?
Molarity
Molality
Mole fraction
Weight fraction
An aqueous solution of urea containing 18g urea in 1500 cm3 of the solution has a density equal to 1.052. If the molecular weight of urea is 60, the molality of the solution is
0.200
0.192
0.100
1.200
How many gram-equivalents of NaOH are required to neutralise 25 cm3 of a decinormal HCl solution?
0.00125
0.0025
0.0050
0.025
450 mg of glucose is dissolved in 100 g of solvent. What is the molality of solution?
0.0025 m
0.025 m
0.25 m
2.5 m
2.5 cm3 of 0.2 M H2SO4 solution is diluted to 0.5 dm3. Find normality of the diluted solution?
0.2 N
0.02 N
0.002 N
0.04 N
The molar concentration of chloride ions in the resulting solution of 300 mL of 3.0 M NaCl and 200 mL of 4.0 M BaCl2 will be
1.7 M
1.8 M
5.0 M
3.5 M
C.
5.0 M
The molal concentration of chloride ions will be 5.0 M.
Molar concentration of Cl- =
=
=
= 5.0 M