0.70 g of an organic compund when dissol...

0.70 g of an organic compund when dissolved in 32g of acetone produces in an elevation in boiling point of `0.25^(@)C`. Calculate the molecular mass of the organic compound. `(K_(b)" for acetone "=1.72 K kg mol^(-1))`.

Text Solution

AI Generated Solution

To solve the problem of calculating the molecular mass of the organic compound, we can follow these steps: ### Step 1: Identify the given values - Mass of the organic compound (Wb) = 0.70 g - Mass of the solvent (acetone) (Wa) = 32 g = 0.032 kg (conversion from grams to kilograms) - Elevation in boiling point (ΔTb) = 0.25 °C - Boiling point elevation constant for acetone (Kb) = 1.72 K kg mol⁻¹ ...

The boiling point of benzene is 353.23 K. When 1.80 g of a non-volatile solute was dissolved in 90 g of benzene, the boiling point is raised to 354.11 K. Calculate the molar mass of the solute. K_b , for benzene is 2.53 K kg mol^(-1) .

`58 g mol^(-1)`

`85 g mol^(-1)`

`93 g mol^(-1)`

`108 g mol^(-1)`

Similar Questions

Explore conceptually related problems

The boiling point of benzene is 353.23 K. When 1.80 g of a non-volatile solute was dissolved in 90 g of benzene, the boiling point is raised to 354.11 K. Calculate the molar mass of the solute. K_(b) for benzene is 2.53 K kg mol^(-1) .

The boiling a point of benzene is 353.23K. When 1.80 g of a non-volatile solute was dissolved in 90 g of benzene, the boiling point is raised to 354.11 K. Calculate the molar mass of the solute. K_(b) for benzene is 2.53 K kg mol^(-1) .

A solution containing 12.5 g of non-electrolyte substance in 175 g of water gave boiling point elevation of 0.70 K. Calculate the molar mass of th substance ( K_(b) for water=0.52 K kg mol^(-1) ).

By dissolving 13.6 g of a substance in 20 g of water, the freezing point decreased by 3.7^(@)C . Calculate the molecular mass of the substance. (Molal depression constant for water = 1.863K kg mol^(-1))

A solution of 0.643 g of an organic compound in 50 mL of benzene (density 0.879 g//mL ) lowered its freezing point from 5.51^(@)C to 5.03^(@)C . Calculate the molecular weight of solid. (K_(f) for benzene is 5.12 K mol^(-1) kg )

1.23g of a substance dissolved in 10g of water raised the boiling point of water to 100.39^(@)C . Calculate the molecular weight of the substance . (K_(b)=0.52^(@)Cm^(-1))

0.70 g of an organic compund when dissolved in 32g of acetone produces in an elevation in boiling point of `0.25^(@)C`. Calculate the molecular mass of the organic compound. `(K_(b)" for acetone "=1.72 K kg mol^(-1))`.

Text Solution

Similar Questions

Knowledge Check

The boiling point of benzene is 353.23 K. When 1.80 g of a non-volatile solute was dissolved in 90 g of benzene, the boiling point is raised to 354.11 K. Calculate the molar mass of the solute. K_b , for benzene is 2.53 K kg mol^(-1) .

Similar Questions

Recommended Questions

0.70 g of an organic compund when dissolved in 32g of acetone produces in an elevation in boiling point of `0.25^(@)C`. Calculate the molecular mass of the organic compound. `(K_(b)" for acetone "=1.72 K kg mol^(-1))`.

Text Solution

Similar Questions

Knowledge Check

The boiling point of benzene is 353.23 K. When 1.80 g of a non-volatile solute was dissolved in 90 g of benzene, the boiling point is raised to 354.11 K. Calculate the molar mass of the solute. K_b , for benzene is 2.53 K kg mol^(-1) .

Similar Questions

Recommended Questions