CBSE Class 11-science Answered
The decomposition of a certain mass of CaCO3 gave 11.2 dm3 of CO2 gas at STP . The mass of KOH required to completely neutralise the gas is
a) 56g
b) 28g
c) 42g
d)20g
Asked by Balbir | 21 Jun, 2019, 09:57: PM
Expert Answer
Given:
Volume of CO2 = 11.2 dm3
We have,
1 mole of CO2 = 22.4 dm3
44 gm of of CO2 = 22.4 dm3
x gm of CO2 = 11.2 dm3
x =
The neutralisation reaction is as,
56 gm KOH required for neutralisation of 44 gm of of CO2
KOH required for neutralisation of 22 gm of of CO2
28 gm of KOH is required for complete neutralisation of 22 gm of of CO2.
Answered by Varsha | 23 Jun, 2019, 10:32: PM
Concept Videos
-
Basic Concepts of Chemistry
This video explains classification and physical properties of matter. -
Basic Concepts of Chemistry
This video explains the concepts of atomic mass, molecular mass, formula ma... -
Basic Concepts of Chemistry
This video contains practice questions based on the classification of matte...
CBSE 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 hcnainwal | 15 Jun, 2023, 10:39: AM
ANSWERED BY EXPERTCBSE 11-science - Chemistry
Asked by Jprmumal29 | 18 Dec, 2022, 09:48: PM
ANSWERED BY EXPERTCBSE 11-science - Chemistry
Asked by mallikarjunasangi28 | 22 Jul, 2022, 07:57: PM
ANSWERED BY EXPERTCBSE 11-science - Chemistry
Asked by vedwatisharma79 | 10 Jun, 2022, 05:27: PM
ANSWERED BY EXPERTCBSE 11-science - Chemistry
Asked by thathvakunjusree | 10 Dec, 2021, 06:46: AM
ANSWERED BY EXPERTCBSE 11-science - Chemistry
Asked by udheshraddha2004 | 28 Oct, 2021, 09:37: PM
ANSWERED BY EXPERTCBSE 11-science - Chemistry
Asked by arunparewa2000 | 27 Oct, 2021, 06:59: PM
ANSWERED BY EXPERTCBSE 11-science - Chemistry
Asked by arttameher038 | 23 Aug, 2021, 07:06: AM
ANSWERED BY EXPERT
