(A) Step $1$: Calculate the elevation in boiling point $(\Delta T_b)$.$\Delta T_b = T_b - T_b^{\circ} = 78^{\circ}\text{C} - 77^{\circ}\text{C} = 1^{\

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(A) Step $1$: Calculate the elevation in boiling point $(\Delta T_b)$.$\Delta T_b = T_b - T_b^{\circ} = 78^{\circ}\text{C} - 77^{\circ}\text{C} = 1^{\circ}\text{C}$.Step $2$: Use the formula for elevation in boiling point: $\Delta T_b = K_b \times m$.Step $3$: Rearrange to solve for molality $(m)$: $m = \frac{\Delta T_b}{K_b}$.Step $4$: Substitute the values: $m = \frac{1}{2.77} \approx 0.361\text{ m}$.

Class 12 Chemistry Solutions Elevation of boiling point of the solvent

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The normal boiling point of ethyl acetate is $77^{\circ}\text{C}$. $A$ solution of a non-volatile, non-electrolyte solute in ethyl acetate boils at $78^{\circ}\text{C}$. The $K_b$ for ethyl acetate is $2.77^{\circ}\text{C kg mol}^{-1}$. What is the molality of the solution (in $\text{ m}$)?

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A
$0.361$
B
$0.052$
C
$0.075$
D
$0.25$

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Elevation of boiling point of the solvent

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The molal elevation constant is the ratio of the elevation of boiling point to the........

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$13.44 \ g$ of $CuCl_2$ is dissolved in $1 \ kg$ of water. Determine the elevation in boiling point of the solution. [$K_b = 0.52 \ K \ kg \ mol^{-1}$,$mol \ wt$ of $CuCl_2 = 134.4$]

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When $10 \ g$ of a non-volatile solute is dissolved in $100 \ g$ of benzene,it raises the boiling point by $1 \ ^{\circ}C$. The molecular mass of the solute is ....... $g \ mol^{-1}$. ($K_b$ for benzene $= 2.53 \ K \ kg \ mol^{-1}$)

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$Y \ g$ of non-volatile organic substance of molecular mass $M$ is dissolved in $250 \ g$ benzene. The molal elevation constant of benzene is $K_b$. The elevation in its boiling point is given by:

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The normal boiling point of ethyl acetate is $77^{\circ}\text{C}$. $A$ solution of a non-volatile, non-electrolyte solute in ethyl acetate boils at $78^{\circ}\text{C}$. The $K_b$ for ethyl acetate is $2.77^{\circ}\text{C kg mol}^{-1}$. What is the molality of the solution (in $\text{ m}$)?

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The molal elevation constant is the ratio of the elevation of boiling point to the........

$13.44 \ g$ of $CuCl_2$ is dissolved in $1 \ kg$ of water. Determine the elevation in boiling point of the solution. [$K_b = 0.52 \ K \ kg \ mol^{-1}$,$mol \ wt$ of $CuCl_2 = 134.4$]

The order of boiling point $(B.P.)$ of the solutions formed is:

When $10 \ g$ of a non-volatile solute is dissolved in $100 \ g$ of benzene,it raises the boiling point by $1 \ ^{\circ}C$. The molecular mass of the solute is ....... $g \ mol^{-1}$. ($K_b$ for benzene $= 2.53 \ K \ kg \ mol^{-1}$)

$Y \ g$ of non-volatile organic substance of molecular mass $M$ is dissolved in $250 \ g$ benzene. The molal elevation constant of benzene is $K_b$. The elevation in its boiling point is given by:

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