Chemistry, 19.07.2021 17:40 gatorlove00
(1) A certain quantity of sodium tetraborate was weighed accurately and placed in a 250 ml volumetric flask. (ii) 25 mL of this stock solution was then titrated with the hydrochloric acid using bromocresol green as an indicator. If the average titre value obtained for this titration was 10.5 mL and the concentration of hydrochloric acid was determined to be 0.4 M, calculate the initial mass of sodium tetraborate that was weighed out.
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