A 10.00-mL sample of vinegar, an aqueous solution of acetic acid (HC2H3O2), is titrated with 0.5173 M NaOH, and 15.00 mL is required to reach the equivalence point.What is the molarity of the acetic acid?  If the density of the vinegar is 1.006g/cm^3 , what is the mass percent of acetic acid in the vinegar?

A 0.5504-g sample of KHP (potassium hydrogen phthalate, KHC8H4O4; molar mass = 204.22 g/mol) is completely dissolved in enough deionized water to make 50.00 mL of solution. The titration of this solution with a KOH solution requires 20.50 mL of the base (KOH solution) to reach the “end-point”. What is the molar concentration of KOH solution? The reaction occurs as follows:                       KOH(aq)  +  KHC8H4O4(aq)  -->  K2C8H4O4(aq)  +  H2O(l)           (A) 0.2457 M           (B) 0.1315 M           (C) 0.05390 M           (D) 0.03823 M

Walter White requires a sulfuric acid (Strong acid) solution to use in a very important synthetic reaction.  He finds a bottle labeled H2SO4, but by some strange turn of events, he cannot remember the concentration.  He decides to perform a titration to determine the concentration of the H2SO4.  He pours 22.20 mL of his unknown sulfuric acid solution into a flask and finds that it requires 29.50 mL of 0.57 M KOH (strong base) to reach the endpoint.  What is the concentration of Walter White's sulfuric acid solution? (Enter your numeric answer only, do not use scientific notation, enter 2 decimal places with your answer) For reference: KOH = 56.106g/mol H2SO4= 98.079g/mol Avagadro's number 6.022x1023

Chromic acid, H2CrO4, is used in ceramic glazes and colored glass, and is particularly effective for cleaning insoluble organic residues off laboratory glassware. A 10.0 mL sample of chromic acid solution contains 46.0 mg chromium (which is found in the chromic acid). What volume (in mL) of 0.0700 M KOH is needed to neutralize the 10.0 mL sample of chromic acid?