CBSE Class 11-science Answered
Two oxides of a metal contain 27.6% and 30.0% of oxygen respectively. If the formula of the first oxide is M3O4, find that of the second.
Asked by Koushtav Chakrabarty | 19 Jul, 2012, 01:34: PM
Expert Answer
Percentage of oxygen=27.6
Precentage of metal=100-27.6=72.4
Formula of the metal oxide=M3O4
Let the atomic mass of the metal= x
Percentage by weight of the metal in the oide M3O4=3x *100/3x+64=72.4
3x=0.724*3x+0.724*64
0.828x=46.336
x=56
The atomic mass of the metal=56
Element Precentage Atomic Mass Atomic ratio Simplest ratio whole no.ratio
M 70 56 70/56=1.25 1.25/1.25=1 2
O 30 16 30/16 1.88/1.25=1.5 3
M2O3
Answered by | 20 Jul, 2012, 01:24: AM
Concept Videos
CBSE 11-science - Chemistry
Asked by sumedhasingh238 | 27 Mar, 2024, 11:04: PM
ANSWERED BY EXPERT
CBSE 11-science - Chemistry
Asked by avijotsingh946431 | 22 Feb, 2024, 05:36: PM
ANSWERED BY EXPERT
CBSE 11-science - Chemistry
Asked by gurmelsinghray | 21 Feb, 2024, 08:43: AM
ANSWERED BY EXPERT
CBSE 11-science - Chemistry
Asked by VarunTYAGi9013 | 21 Oct, 2023, 07:14: PM
ANSWERED BY EXPERT
CBSE 11-science - Chemistry
Asked by dhrubapratimc | 13 Sep, 2023, 09:34: PM
ANSWERED BY EXPERT
CBSE 11-science - Chemistry
Asked by bablipanwar893 | 01 Jul, 2023, 12:25: PM
ANSWERED BY EXPERT
CBSE 11-science - Chemistry
Asked by saijagdale9 | 19 Jun, 2023, 02:34: PM
ANSWERED BY EXPERT
CBSE 11-science - Chemistry
Asked by hcnainwal | 15 Jun, 2023, 10:39: AM
ANSWERED BY EXPERT
CBSE 11-science - Chemistry
Asked by pujakum60022 | 11 Jun, 2023, 08:09: PM
ANSWERED BY EXPERT
CBSE 11-science - Chemistry
Asked by abhiabhishek842006 | 09 Jan, 2023, 08:34: PM
ANSWERED BY EXPERT