Chemistry · 2023
JEE Main · 15 April 2023, Shift 1 · Q83
The vapour pressure of 30 %( w / v ) aqueous solution of glucose is ____ mm Hg at 25^° C. [Given: The density of 30 %( w / v ), aqueous solution of…
The vapour pressure of $\displaystyle 30 \%(\mathrm{w} / \mathrm{v})$ aqueous solution of glucose is $\displaystyle \_\_\_\_$ mm Hg at $\displaystyle 25^{\circ} \mathrm{C}$.
[Given : The density of $\displaystyle 30 \%(\mathrm{w} / \mathrm{v})$, aqueous solution of glucose is $\displaystyle 1.2 \mathrm{~g} \mathrm{~cm}^{-3}$ and vapour pressure of pure water is $\displaystyle 24$ mm Hg .]
(Molar mass of glucose is $\displaystyle 180 \mathrm{~g} \mathrm{~mol}^{-1}$.)
Official answer
From NTA’s final answer key for this paper.
23
More from Solutions
- Elements P and Q form two types of non-volatile, non-ionizable compounds PQ and PQ_2. When 1 g of PQ is dissolved in 50 g of solvent 'A', Δ T_b was…2026
- Solution A is prepared by dissolving 1 g of a protein (molar mass =50000 g mol^-1 ) in 0.5 L of water at 300 K. Its osmotic pressure is x bar.…2026
- Some amount of dichloromethane (CH_2 Cl_2) is added to 671.141 mL of chloroform (CHCl_3) to prepare 2.6 × 10^-3 M solution of CH_2 Cl_2(DCM). The…2023
- The osmotic pressure of a dilute solution is 7 × 10^5 Pa at 273 K. Osmotic pressure of the same solution at 283 K is ____ × 10^4 Nm^-2.2024
- X Y is the membrane/partition between two chambers 1 and 2 containing sugar solutions of concentration c_1 and c_2(c_1>c_2) mol L^-1. For the reverse…2025
- ' W ' g of a non-volatile electrolyte solid solute of molar mass ' M ' g mol^-1 when dissolved in 100 mL water, decreases vapour pressure of water…2026
- Solid Lead nitrate is dissolved in 1 litre of water. The solution was found to boil at 100.15^° C. When 0.2 mol of NaCl is added to the resulting…2023
- 20 % of acetic acid is dissociated when its 5 g is added to 500 mL of water. The depression in freezing point of such water is ____ × 10^-3^° C.…2023
JEE Main 2023 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.