PrintCalculator Periodic Table n 29 of 33 10:0 mL of Hicl and a tew dro of pheno

Question

PrintCalculator Periodic Table n 29 of 33 10:0 mL of Hicl and a tew dro of phenolphthalein indicator. The buret contains 0.310 M NaOH. mL 1015 10 What volume of NaOH is needed to reach the end point of the titration? 15 Number 30 mL NaOH 4025 What was the initial concentration of HCI? Number M HCI Previous Give Up & View Solution Check Answer NextEx Hint Add base to the acid solution until it just turns pink. You may need to reset the titration and try again if you go past the end point. Assume that the start point is 0.0 ml. The volume is read from the bottom of the curve for the meniscus

Explanation / Answer

M1 * V1 = M2 * V2

M1 * 10.0 = 0.310 * V2

V2 (volume of NaoH) = M1 * 10.0 / 0.310

M1 ( initial concentration of Hcl) = 0.310 * V2 / 10.0

you can caolulate the unknows from the above equation BUT you need to know one unknown to solve for the second

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