Answer Happy

Suppose a student titrated vinegar, which is an acetic acid solution, of unknown strength with a sodium hydroxide solution according to the following equation. HC2H302 + NaOH + H2O + NaC H202 If 16.92 mL of 0.1506 M NaOH were required to titrate 5.00 mL of HC2H2O2. What is the percent (mass/volume) of the vinegar? The molar mass of acetic acid is 60.1 g/mol.

Match the following aqueous solutions with the appropriate letter from the column on the right. 0.10 Al(NO3)3 1. m 0.12 BaCl2 2. m Lowest A. freezing point Second lowest B. 'freezing point Third lowest C. 'freezing point Highest D. freezing point 0.11 Cu12 3. m 0.31 Ethylene 4. glycol(nonelectrolyte) m

Match the following aqueous solutions with the appropriate letter from the column on the right. 6.8x10 Fe2(SO4)3 2. 2 m Lowest 1.0.13 m NiBr2 A. freezing point Second lowest B. freezing point Third lowest 3.0.10 m Mn(NO3)2 C. 'freezing point Highest 4.0.37 m Sucrose(nonelectrolyte) D.freezing point