Question

For which of the following compound equivalent weight is equal to molecular weight

Answer 1

Answer:

The compound which have the value of n- factor is equal to one. Equivalent weight is equal to molecular weight for such compounds.

Explanation:

• Equivalent weight can be calculated from the ratio of molecular weight and n- factor
• Equivalent weight = Molecular weight/ n- factor
• n- factor is equal to acidity for acids (no. of H⁺ ions) or basicity for bases. For salts n- factor is equal to the magnitude of total negative charge or total positive charge.  For example CaCl₂, n- factor is equal to 2.
• If n- factor is equal to one. Then equivalent weight will be equal to molecular weight.
• For example, the acidity of HCl = 1

        Equivalent weight = molecular weight/ acidity

        Equivalent weight  = 36.5/1 = 36.5 geq = molecular weight.

Answer 2

Answer:

the following compound equivalent weight is equal to molecular weight

H₃PO₂

Explanation:

Here alternatives aren't given for this query so i've introduced the alternatives

A) H₂SO₄

B) H₃PO₃

C) H₃PO₄

D) H₃PO₂

Using the periodic desk of the factors to discover atomic weights, we discover that hydrogen has an atomic weight of 1, and oxygen's is 16. In order to calculate the molecular weight of 1 water molecule, we upload the contributions from every atom; that is, 2(1) + 1(16) = 18 grams/mole.

For acids, Equivalent weight = Molecular Weight/ Basicity

Basicity of an acid may be described because the range of replaceable hydrogen atoms of that specific acid with the aid of using a base.

Basicity of H₂SO₄= 2

Basicity of H₃PO₃ = 2

Basicity of H₃PO₄ = 3

Here, basicity of H₃PO₂ =1

Therefore, molecular weight is identical to the equal weight.

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