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12th Class Physics Quiz Question.

http://interviewquestionsanswers.org/quiz/12th-Class http://interviewquestionsanswers.org/qu … ss-Physics

Question:
If n is the number of moles, M is the molecular weight and m is the mass in grams of the substance, then:

Option A):
All have the same meaning
Option B):
m = m*M
Option C):
M = m/n
Option D):
n = m/M

Correct Answer is Option D):
n = m/M