MHT CET202311 May 2023Evening ShiftChemistryIonic EquilibriumActual

What is the pH of 0.005 M NaOH solution?

Options

A2.30
B12.6
C11.7
D3.2

Correct answer

C. 11.7

Step-by-step solution

aligned & NaOH Na ⁺+ OH ⁻ & array lll 0.005 M & 0.005 M & 0.005 M array & pOH =- ₁₀[ OH ] & =- ₁₀[0.005] & =- ₁₀ (5 10⁻³ ) & =- [ 10⁻³+ 5 ] & =-[-3+0.699] & =-[-2.301] & =2.301 & pOH + pH =14 & pH =14-2.301 & =11.699 & 11.7 & aligned

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