Question

If equivalent mass of a metal is 15.5, then the equivalent
mass of its metal chloride will be
74.5
51
31
35.5​

Answer 1

Answer:

A

39

B

74.5

C

D

35.5

Answer

A

Solution

If formula is MCl <br> At.wt of M = 39 <br> Valancy of M = 1 <br>

Answer 2

Answer:

2). 51

Explanation:

The equivalent weight of metal is 15.5

The formula of equivalent weight is Atomic mass/valency.

Hence, in the case of metal $15.5 = X/n$ [where X is the atomic mass of the metal and n is the valency]

$X = 15.5n$

The equivalent weight of the metal chloride (MClₙ) = ?

$E = (X+35.5n)/n$ [35.5 is the atomic mass of the chloride]

Put the value of X in the above equation,

$E = (15.5n+35.5n)/n$

$E = 51$

The equivalent weight of the metal chloride is 51g/mol.

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