Question

A beaker containing water is placed on the platform of a spring balance the balance reads 1.5 kg

Answer 1

It seems that your question is incomplete.

Answer 2

Required formula,

Density = Mass / Volume

Given, mass of water = 1.5 kg

We know density of water = 1 g/cm³ = 1000 kg/m³

Thus, volume of water = (mass/density) = (1.5/1000) m³ = 1.5 X 10⁻³ m³.