Consider a different analyte for this exercise. citric acid is found in many fruits and fruit juices. sodium hydroxide (naoh) is the titrant and citric acid (h3c6h5o7) the analyte according to the following balanced chemical equation. h3c6h5o7 + 3 oh − → c6h5o73− + 3 h2o
(a) what is the stoichiometry of h3c6h5o7 to oh −?
(b) complete the following table for this titration. data table p2: titration of citric acid in orange juice with sodium hydroxide.
concentration of oh − 0.0769 m
volume orange juice 8.69 ml
mass orange juice 8.83 g
volume of oh − solution 24.61 ml
questions:
mmol of oh −: ?
mmol of h3c6h5o7: ?
mass of h3c6h5o7: ?
mass % of h3c6h5o7 in orange juice: ?
molarity of h3c6h5o7 in orange juice: ?

Salicylic acid is a very important acid. it is used to synthesize the aspirin by treating with acetic anhydride. a 0.2015-g sample of salicylic acid was dissolved in a 100.00-ml volumetric flask, and the solution was diluted to the mark. a 10-ml aliquot of this solution was titrated with standard naoh (0.01130 + 0.2% n) to a phenolphthalein faint pink color end point at 19.81 ml. (a) (calculate the normality of the salicylic acid solution used in the titration. (b) assuming the salicylic acid is pure, what is the equivalent weight of the salicylic acid? practice problems for the final exam (continued) (c) (calculate the inherent error in the determination of the equivalent weight you calculated in part (b). use the following absolute errors in the equipment /glassware when calculating the inherent error. 5.00-ml pipet: + 0.02 ml 100-ml volumetric flask: + 0.08 ml analytical balance: + 0.2 mg 25-ml buret: + 0.03 ml

For each of the following compounds, write the formula then predict whether it would be a strong, weak, or non-electrolyte when placed in di water. for the ionic compounds only, put (s) or (aq) after the forrmula formula strong, weak or non electrolyte? a calcium hydroxide b. silver carbonate c. lead(ii) sulfate d. phosphorus trifluoride e. sodium phosphide f barium sulfate g. strontium acetate h. zinc nitrate

What produces wave a)sound b) heats c)transfer of energy d)vibrations