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The concentration of hydrogen ions ¡n a sample of soft drink is 3.8 x 10^-3 m.

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The concentration of hydrogen ions ¡n a sample of soft drink is 3.8 x 10-3 m. What is the. pH value? Whether the soft drink is acidic (or) basic?

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pH = – log10 [H3O+] 

= – log10 [3.8 x 10-3] 

= – log 3.8 + 3 

= 3 – 0.5798 = 2.4202

pH = 2.42 

When pH < 7, the soft drink is acidic.

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