The vapor pressure of benzene is 53.3 kP_a at 603^oC, but it falls to 51.5 kP_a when 19 g of a non-volatile organic compound is dissolved in 500 g…

Question

The vapor pressure of benzene is 53.3 kP_a at 603^oC, but it falls to 51.5 kP_a when 19 g of a non-volatile organic compound is dissolved in 500 g benzene. The molar mass of the non-volatile compound is

MARKS Content Team · Accepted Answer

Correct answer: (B) 85. P^0 = 53.3 kPa P_s =51.5 kP_a (P^0-P_s)/P_s=n/N=(19×78)/(M×500) (53.3-51.5)/51.5=n/N=(19×78)/(M×500) M=(19×78×51.5)/((53.3-51.5)×500) M=85 g

The vapor pressure of benzene is $53.3 k P_{a}$ at $603^{o} C$ , but it falls to $51 .5 {kP}_{a}$ when $19 g$ of a non-volatile organic compound is dissolved in $500 g$ benzene. The molar mass of the non-volatile compound is

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The vapor pressure of benzene is 53.3 kPa at 603 oC, but it falls to 51.5 kP a when 19 g of a non-volatile organic compound is dissolved in 500 g benzene. The molar mass of the non-volatile compound is

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More Solutions Questions

The vapor pressure of benzene is $53.3 k P_{a}$ at $603^{o} C$ , but it falls to $51 .5 {kP}_{a}$ when $19 g$ of a non-volatile organic compound is dissolved in $500 g$ benzene. The molar mass of the non-volatile compound is