CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

The chloride of a solid metallic element contains 57.89% by mass of the element. The specific heat of the element is 0.0324caldeg1g1. Calculate the exact atomic mass of the clement.

A
195.2
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
195
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
195.9
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
194
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is A 195.2
% of element is given in this question = 57.89
so % of chlorine is = 100-57.89 = 42.11

Equivalent wt of metal= 57.8942.11×35.5 = 48.8

specific heat of metal= 0.0324

According to Dulong and Petit's law
Approx atomic wt of metal= 6.4specificheat=6.40.0324 = 197.53

Valency of metal= Approximate atomic wt/ Equivalent wt

= 197.5348.8 = 4.04 = 4

Exact atomic wt of metal = Equivalentwtofmetal×Valencyofmetal = 48.8 x 4
= 195.2
answer is A

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Laws of Chemical Combination
CHEMISTRY
Watch in App
Join BYJU'S Learning Program
CrossIcon