Question

If the weight of metal chloride is $$x$$ gram containing $$y$$ gram of metal, the equivalent weight of metal will be:

Answer 1

Answer:

35.5

⋅

y

x

−

y

 

g

Explanation:

For this compound, the equivalent mass of the metal represents the mass of metal that combines with exactly  

35.5 g

of chlorine.

You know that the total mass of the oxide is equal to  

x

 

g

and that this sample contains  

y

 

g

of metal, so you can say that the mass of chlorine present in the sample is equal to

mass of metal chloride



x

.

g

−

mass of metal



y

.

g

=

mass of chlorine



(

x

−

y

)

.

g

So, you know that  

y

 

g

of metal combine with  

(

x

−

y

)

 

g

of chlorine, so you can say that  

35.5 g

of chlorine will combine with

35.5

g Cl

⋅

y

.

g metal

(

x

−

y

)

g Cl

=

(

35.5

⋅

y

x

−

y

)

.

g metal

Therefore, the equivalent mass of the metal in this compound is equal to

equivalent mass

=

(

35.5

⋅

y

x

−

y

)

.

g

−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−