Question

A solid material contains elements M and N only. Analysis of three samples of this substance gave the
following results:
Sample Mass of the sample in g
1)
2.173
2)
1.518
3)
1.851
Mass of M in g
1)
1.566
2)
1,094
3)
1.334
Is it consistent with the hypothesis that the material is a compound?​

Answer 1

Answer:

us consider the problem:

Element No. of Moles Simple Ratio

C=74 74/12=6.1 6.1/1.2=5.08 or 5 &

H=8.65 8.65/1=8.65 8.6/1.2=7.16 or 7$$

N=17.3 17.3/14=1.2 1.2/1.2=1 or 1

Therefore the empirical formula is C

5

H

7

N.

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