100 mL solution of pH = 6 is diluted to 1000 mL. Resulting solution has pH

pH = 6∴ H+=10−6M Also solution is acidic (pH<7) and dilution will not change its acidic nature.H+diluted =100×10−61000 =1×10−7M[H+ ] from H2O is also required while calculating resultant concentration. Total H+=H+diluted +H+H2O =1×10−7+1×10−7 =2×10−7M pH=−log 2×10−7 =6.7