CBSE Class 12-science Answered
120 GM Naoh is dissolved in 3dm³ aqcus solution find out its molarity and normality
Asked by sameerteli003 | 08 Apr, 2024, 11:48: PM
Expert Answer
Dear Student,
Molarity = moles of solute / volume of solution in dm3
Molar mass of NaOH = 40 g/mol
Hence, the number of moles of NaOH
Moles = Mass / Molar mass = 120 g / 40 g/mol = 3 moles
Molarity = 3 moles / 3 dm3 = 1 M
Hence, the molarity of the NaOH solution is 1 M.
Normality = Number of equivalents in the formula unit of the solute × Molarity
N = nM
The equivalent factor of NaOH is 1 since it provides 1 mole of hydroxide ions (OH-) per mole of NaOH.
N = 1 M × 1 = 1 N
Hence, the normality of the NaOH solution is 1 N.
Answered by | 10 Apr, 2024, 09:46: AM
Concept Videos
CBSE 12-science - Chemistry
Asked by hannamaryphilip | 17 Apr, 2024, 11:20: PM
ANSWERED BY EXPERT
CBSE 12-science - Chemistry
Asked by sameerteli003 | 08 Apr, 2024, 11:48: PM
ANSWERED BY EXPERT
CBSE 12-science - Chemistry
Asked by saritanohar22 | 13 Jan, 2024, 01:25: PM
ANSWERED BY EXPERT
CBSE 12-science - Chemistry
Asked by kamlesh.kumar.malee | 20 Dec, 2023, 06:59: AM
ANSWERED BY EXPERT
CBSE 12-science - Chemistry
Asked by shamiyaali732 | 26 Sep, 2023, 02:00: AM
ANSWERED BY EXPERT
CBSE 12-science - Chemistry
Asked by elabarman58 | 23 Jan, 2023, 09:39: AM
ANSWERED BY EXPERT
CBSE 12-science - Chemistry
Asked by gauravrastogi577 | 16 Aug, 2022, 06:18: PM
ANSWERED BY EXPERT
CBSE 12-science - Chemistry
Asked by gauravrastogi577 | 16 Aug, 2022, 06:17: PM
ANSWERED BY EXPERT
CBSE 12-science - Chemistry
Asked by shiv.pama83 | 27 Nov, 2021, 05:50: AM
ANSWERED BY EXPERT
CBSE 12-science - Chemistry
Asked by mdarsadazizh | 31 Aug, 2021, 01:02: PM
ANSWERED BY EXPERT