Chemistry, 11.02.2021 17:10, almighty3120
Sodium benzoate, the sodium salt of benzoic acid, is used as a food preservative. A sample containing solid sodium benzoate mixed with sodium chloride is dissolved in 50.0 mL of 0.500 M HCl, giving an acidic solution (ben- zoic acid mixed with HCl). This mixture is then titrated with 0.393 M NaOH. After the addition of 46.50 mL of the NaOH solution, the pH is found to be 8.2. At this point, the addition of one more drop (0.02 mL) of NaOH raises the pH to 9.3. Calculate the mass of sodium benzo- ate (NaC6H5COO) in the original sample. (Hint: At the equivalence point, the total number of moles of acid [here HCl] equals the total number of moles of base [here, both NaOH and NaC6H5COO].)
Answers: 1
Chemistry, 22.06.2019 02:30, bionicboy03120440
What is the mass of sodium in 3 moles of sodium chloride
Answers: 1
Chemistry, 22.06.2019 16:00, graciewyatt6833
Sulfuric acid is a polyprotic acid. write balanced chemical equations for the sequence of reactions that sulfuric acid can undergo when it's dissolved in water.
Answers: 2
Sodium benzoate, the sodium salt of benzoic acid, is used as a food preservative. A sample containin...
Mathematics, 14.10.2020 15:01
Mathematics, 14.10.2020 15:01
Physics, 14.10.2020 15:01
Chemistry, 14.10.2020 15:01
Geography, 14.10.2020 15:01
Geography, 14.10.2020 15:01
Mathematics, 14.10.2020 15:01