A mixture of two volatile liquids A and B is distilled. The boiling point of A is 70°C and that of B is 90°C. Assuming ideal behavior, which of the following statements is true regarding the initial distillate?
The distillate will be richer in A than the original mixture.
The distillate will be richer in B than the original mixture.
The distillate will have the same composition as the original mixture.
The distillate will contain only A.
Related Questions
The ammonia evolved from the treatment of 0.30 g of an organic compound for the estimation of nitrogen was passed in 100 mL of 0.1 M sulphuric acid. The excess of acid required 20 mL of 0.5 M sodium hydroxide solution for complete neutralization. the organic compound is
acetamide
benzamide
urea
thiourea
A 0.1 M solution of a weak monobasic acid (HA) is titrated with 0.1 M NaOH. Given that the of HA is , what is the approximate pH at the half-equivalence point?
2.37
4.74
7.00
9.26
Which of the following is NOT a suitable method for determining the concentration of a sodium hydroxide solution?
Titration with a standard hydrochloric acid solution
Titration with potassium hydrogen phthalate (KHP)
Conductometry using a calibrated conductivity meter
Titration with sodium carbonate
Which of the following is a quantitative analytical method?
Flame test
Solubility test
Titration
Color change observation
Which of the following is NOT a suitable primary standard for acid-base titrations?
Oxalic acid
Potassium hydrogen phthalate
Sodium carbonate
NaOH
