What is the equivalent weight of h2so4 in the reaction H2SO4+NAI = NA2SO4+I2+H2S+H2O

First, calculate the relative molecular mass and apply the atomic masses to each element of the molecule using a periodic table.

H2S04

H * 2 = 1 * 2 = 2

S * 1 = 32 * 1 = 32

O * 4 = 16 * 4 = 64

2 + 32 + 64 = 98

Similarly : Nal

Na * 1 = 23 * 1 = 23

I * 1 = 127 * 1 = 127

23 + 127 = 150

Using the formula Moles = Mass (g) / relative molecular mass, the reaction equation should be balanced

5H2SO4 + 8Nal = 4Na2SO4 + 4l2 + H2S + 4H2O

Therefore the reacting ratios are 5:8:4:4:1:4