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A certain monoprotic acid is used in industry for manufacturing plastics, adhesives and paints. A 0.22 M solution of the acid has a pH of 2.91. What is Ka for this acid?

Please give the answer in scientific notation to 2 significant figures e.g. 3.5E-7

'n Sekere monoprotiese suur word in die industrie gebruik vir die vervaardiging van plastiek, kleefmiddels en verf. 'n 0.22 M oplossing van die suur het 'n pH van 2.91. Wat is Ka vir hierdie suur?

Gee asseblief die antwoord in wetenskaplike notasie aan 2 beduidende syfers bv.3.5E-7

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