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A chemist must prepare 750.0 mL of sodium hydroxide solution with a pH of 13.70 at 25 °C. She will do this in three steps: •

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Date Page solution: ри +рои = 1ч. ni = uod + OLET .. Рон = 14 – 13.7o -озо ... рои - о: зо but poM = - ) og Lon:] озо а–тоеDate Page Now moles • mass cgl ols Naon 1 molar mass of Naon moles : mass cg) il 40 0:50 - m ass (9) 0.50x40 = mass of NaonDate Page 1.5 prpun 13.70 gram Noon required to 750ml solation with pH =

1.5 grams NaOH is required to make 750 ml solution with pH = 13.70

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