A 20%(W/W) solution of NaOH is 5M.Then density of solution is
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M = (mass % × density ×10)÷ molar mass
molar mass of NaOH=40g
5 = (20× d × 10)÷ 40×10^-3
d= 10^-3 kg m^-3
molar mass of NaOH=40g
5 = (20× d × 10)÷ 40×10^-3
d= 10^-3 kg m^-3
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