SOLVED: A 0.128 g sample of KHP (HKC8H4O4, molar mass 204.23 g) required 28.54 mL of NaOH solution to reach a phenolphthalein endpoint. Calculate the molarity of the NaOH.Reaction: HKC8H4O4 NaOH -> NaKC8H4O4 H2OQuestion 2: A 20.00 mL sample of HCl was titrated with the NaOH solution from Question 1. To reach the endpoint, it required 23.72 mL of the NaOH. Calculate the molarity of the HCl.Reaction: HCl NaOH -> NaCl H2O
SOLVED: A 0.128 g sample of KHP (HKC8H4O4, molar mass 204.23 g) require…
2021年9月17日
numerade.com
SOLVED: 4. Reaction of 6M NaOH with 6M HCl and phenolphthaleinindicator)Balanced Reaction (including phases-Total ionic equation-Reaction Type-Net ionic equation-
SOLVED: 4. Reaction of 6M NaOH with 6M HCl and phenolphthaleinindicator)Balance…
2022年11月7日
numerade.com
SOLVED: You have 5 mL of vinegar in a flask and 2 drops ofphenolphthalein indicator. You titrate exactly 36.9 mL of 0.1 mol/L NaOH from a burette directly into the flask which gives you apale pink color. This means the solution has reachedneutralization. Calculate n of the NaOH.3.69 mol369 mol0.00369 mol0.0369 mol
SOLVED: You have 5 mL of vinegar in a flask and 2 drops ofphenolphthalein indicator. Y…
2021年9月25日
numerade.com
▷ Phenolphthalein synthesis | Chemistry Online
▷ Phenolphthalein synthesis | Chemistry Online
2022年10月30日
chemistry-online.com
SOLVED: 1.) 25.00 mL of a standard solution of0.1105 M HCl requires 27.31 mL of an NaOHsolution to reach the phenolphthalein endpoint. What is themolarity of the NaOH solution? Use proper sig figs. If a diprotic acid sample of mass 0.231 g required 38.22 mL of0.09767 M NaOH to neutralize, find the molarmass of the unknown solid acid in grams per mole. Use proper sigfigs.
SOLVED: 1.) 25.00 mL of a standard solution of0.1105 M HCl requires 27.31 mL of an Na…
2021年12月14日
numerade.com
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