why 1/2 mole H2SO4 means 1 gram equivalent of it ?

Question

Please explain it elaborately such that a class XI student can understand.Also give me clear idea of the gram equivalent.Please take some pains to explain nicely,I am in great trouble with the equivalent mass..

Answer 1

The concept of Equivalent mass comes from acid-base neutralization reactions. Not all acids are the same. Some have more protons to donate than others do.

Molar mass or Formula mass is based upon the Molecular or Formula weight (mass) of the compound. The Equivalent mass is the Molecular or Formula mass divided by the number of acidic hydrogens in the acid.

Since Sulfuric acid (H2SO4) has two acidic hydrogens, then the Equivalent mass is the Molecular mass divided by two. If given in terms of grams, this is one gram equivalent.

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Answer 2

well first you need to know the structure of given compound. once you draw the structure, your half of the work is done. you look for no. of replaceable hydrogen atoms from the given compound. i can't draw the structure, so u Will have to put in some of your own effort. here the central atom will be sulphur. sulphur has six electrons that it has to share while forming compound.
now think about the possible structure. four of its valance electrons are shared by two bivalent oxygen directly.
so, we r left with two more electrons. two OH ions will share these electrons.
now, the hydrogen atoms present in OH radicals are replicable.
so, we define the basicity of given acid as 2. so, its 1 mole is equivalent to 2 gram equivalent mass.
to define equivalent mass here-
it is the mass of given compound that can replace a chlorine atom or i would suggest you to go for the defination given in books.
gram equivalent is something related to normality.

Answer 3

First as with anything go to the definition.
An equivalent is the amount in grams that will react with an Avogadro's number of electrons.
So 1 mol of H2SO4 will react with 2 "moles of electrons" to give you:
H2SO4 ---> SO4(=)
So 1 mole will give you 2 gram equivalent.
1/2 mole will give you 1 gram equivalent.

Answer 4

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Answer 5

by defination equivalent mass of a compound is the mass which can combine or replace one part by weight of hudrogen atom. one mole of sulphuric acid has a mass of 98 gm which can replace or combine with two parts by weight of hydrogen atom. thus according to defination its equivalent mass will the half of its molecular mass which can replace or combine with one part by weight of hydrogen

Answer 6

by way of 1N, i assume you advise 1moldm^-3. To get the form of moles of substance in a given answer, only circumstances the concentration by way of the quantity. So the quantity of H2SO4 in 25mL of a 1M answer would be a million/one thousand * 25. you're able to be able to desire to divide by way of one thousand as a results of fact the concentration is given in mol according to decimeter cubed, and there are one thousand cm3 in 1dm3. i'm hoping it somewhat is sparkling.