wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

Suppose the elements X and Y combine to form two compounds XY2 and X3Y2. When 0.1 mole of XY2 weighs 10 g and 0.05 mole of X3Y2. weighs 9 g, the atomic weights of X and Y are

A
40, 30
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
60, 40
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
20, 30
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
30, 20
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is A 40, 30
We can use mass and mole balance to solve this.
0.1x+(0.1)(2)y=10
(0.05)(3)x+(0.05)(2)y=9
Solve these two equations and you get
x = 40, y = 30.

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Algebraic Solution
MATHEMATICS
Watch in App
Join BYJU'S Learning Program
CrossIcon