CBSE Class 11-science Answered
Q calculate the molarity of a solution of ethnol in water in which the mole fraction of ethnol is 0.040 ?
Asked by hardik | 11 May, 2012, 05:35: PM
Expert Answer
Mole fraction = 0.04/1 = 1/25.
In 25 moles of the total mixture, 1 mole of ethanol and 24 moles of water are present. 24 moles of water weigh 24 x 18 = 432 g = 432 mL (18g is the molar mass of water)
1 mole of ethanol is present in 432 mL of water. Molarity is no. of moles of solute present in 1 L of solution.
So molarity = 1 x 1000 / 432 = 1000/432 = 2.315 M (approx.)
Answered by | 11 May, 2012, 05:42: PM
Concept Videos
-
Basic Concepts of Chemistry
This video explains the concept of mole in terms of mass, volume, number an... -
Basic Concepts of Chemistry
This video explains the importance of chemistry in daily life, SI units of ... -
Basic Concepts of Chemistry
This video explains the concept percentage composition and empirical formul... -
Basic Concepts of Chemistry
This video explains classification and physical properties of matter. -
Basic Concepts of Chemistry
This video explains the law of conservation of mass, law of definite propor...
CBSE 11-science - Chemistry
Asked by hm6561889 | 15 Apr, 2024, 07:45: AM
ANSWERED BY EXPERTCBSE 11-science - Chemistry
Asked by manikandanragul1 | 11 Apr, 2024, 09:02: AM
ANSWERED BY EXPERTCBSE 11-science - Chemistry
Asked by jayag1298 | 08 Apr, 2024, 03:14: PM
ANSWERED BY EXPERTCBSE 11-science - Chemistry
Asked by omniscientnjf2021 | 07 Apr, 2024, 10:18: PM
ANSWERED BY EXPERTCBSE 11-science - Chemistry
Asked by ansh.skulkarni1158 | 07 Apr, 2024, 11:03: AM
ANSWERED BY EXPERTCBSE 11-science - Chemistry
Asked by nikhithaguguloth14 | 29 Mar, 2024, 08:15: PM
ANSWERED BY EXPERTCBSE 11-science - Chemistry
Asked by sumedhasingh238 | 27 Mar, 2024, 11:04: PM
ANSWERED BY EXPERTCBSE 11-science - Chemistry
Asked by avijotsingh946431 | 22 Feb, 2024, 05:36: PM
ANSWERED BY EXPERTCBSE 11-science - Chemistry
Asked by gurmelsinghray | 21 Feb, 2024, 08:43: AM
ANSWERED BY EXPERTCBSE 11-science - Chemistry
Asked by VarunTYAGi9013 | 21 Oct, 2023, 07:14: PM
ANSWERED BY EXPERT
