what is equivalent weight of elements?

Question

Eq. wt. of an element is defined as that wt. of element in grams which reacts with 1 part by wt. of H2 or 8 parts by wt. of O2 or 35.5 parts by wt. of Cl.

Can u explain reacts with 1 part by wt. of H2 or 8 parts by wt. of O2 or 35.5 parts by wt. of Cl

Answer 1

Equivalent weight is an old-fashioned term that is no longer used. It is the relative atomic mass of an element, divided by the number of electrons it gains or loses.

The annoying thing about the old equivalent weights idea is that it changed from compound to compound, even for the same element.

Look at http://en.wikipedia.org/wiki/Equivalent_weight
for more details.

Answer 2

eqv. wt. = relative atomic mass / valency