If the pH of an arsenic acid H3AsO4 solution is 4.2, what is the concentration of the arsenate ion AsO43–? (Ka1 = 5.6 × 10–3, Ka2 = 1.0 × 10–7, Ka3 = 3.0 × 10–12) PLEASE SHOW WORK, thank you!

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Analytical Tools

Analytical tools or analysis tools help one to get into a conclusion or results from the data collected. Analytical tools can be applied for simple data sets and also in the case of big data analytics.