Select Goal &
City
Select Goal
Explore
Question:
The ethanolic solution contaminated with benzele showed absorbance of 0.69 at 260 nm in a 2 cm cell if the molar absorptivity of benzene in thanolis 230 M¹cm¹, what is the concentration of benzene in the solution
The ethanolic solution contaminated with benzele showed absorbance of 0.69 at 260 nm in a 2 cm cell if the molar absorptivity of benzene in thanolis 230 M¹cm¹, what is the concentration of benzene in the solution
Updated On: Jul 15, 2024
- 0.003 M
- 0.0015 M
- 0.001M
- 0.015M
Hide Solution
Verified By Collegedunia
The Correct Option is B
Solution and Explanation
The correct option is (B): 0.0015 M
Was this answer helpful?
0
0
Top Questions on Solutions
- The Molarity (M) of an aqueous solution containing \( 5.85 \, \text{g} \) of \( \text{NaCl} \) in \( 500 \, \text{mL} \) water is:
(Given: Molar Mass \( \text{Na} = 23 \) and \( \text{Cl} = 35.5 \, \text{g mol}^{-1} \)) - \( 2.5 \, \text{g} \) of a non-volatile, non-electrolyte is dissolved in \( 100 \, \text{g} \) of water at \( 25^\circ \text{C} \). The solution showed a boiling point elevation by \( 2^\circ \text{C} \). Assuming the solute concentration is negligible with respect to the solvent concentration, the vapour pressure of the resulting aqueous solution is ______ mm of Hg (nearest integer).
(Given: Molal boiling point elevation constant of water (\( K_b \)) = \( 0.52 \, \text{K} \cdot \text{kg} \cdot \text{mol}^{-1} \),1 atm pressure = \( 760 \, \text{mm of Hg} \), molar mass of water = \( 18 \, \text{g mol}^{-1} \)) - 2.7 Kg of each of water and acetic acid are mixed. The freezing point of the solution will be –x °C. Consider the acetic acid does not dimerise in water, nor dissociates in water. \( x = \) ______ (nearest integer).
[Given: Molar mass of water = \( 18 \, \text{g mol}^{-1} \), acetic acid = \( 60 \, \text{g mol}^{-1} \) \( K_f \, \text{H}_2\text{O} = 1.86 \, \text{K kg mol}^{-1} \) \( K_f \, \text{acetic acid} = 3.90 \, \text{K kg mol}^{-1} \) Freezing point: \( \text{H}_2\text{O} = 273 \, \text{K}, \, \text{acetic acid} = 290 \, \text{K} \)] - A solution is prepared by adding 1 mole ethyl alcohol in 9 mole water. The mass percent of solute in the solution is ___________ (Integer Answer)
(Given : Molar mass in g mol$^{-1}$ Ethyl alcohol : 46, water : 18) - Molality of an aqueous solution of urea is 4.44 m. Mole fraction of urea in solution is x × 10–3. Value of x is _______. (integer answer)
View More Questions
Questions Asked in GPAT exam
- During compression of tablets, dwell time is:
- GPAT - 2024
- Tablets
- The visible coloured ring of the eye is called:
- GPAT - 2024
- sense organs
- Aerobic dehydrogenase in biological oxidation contains:
- GPAT - 2024
- Carbohydrates
- Among the following which is known as “SPIRIT OF SALT”:
- GPAT - 2024
- Acid-base titrations
- Which of the following is a meta directing group:
- GPAT - 2024
- carbonyl compounds
View More Questions
SUBSCRIBE TO OUR NEWS LETTER
COLLEGE NOTIFICATIONSEXAM NOTIFICATIONSNEWS UPDATES
Download the Collegedunia app on 
© 2024 Collegedunia Web Pvt. Ltd. All Rights Reserved