A 0.3205 g sample of CaCO3 was dissolved in HCl and the resulting Solution diluted to 250.0mL in a bolumetric flask. A 25.00 mL sample of the solution repuired 18.75mL of an EDTA solution for titration to the Eriochrome Black T end point.
a. how many moles of CaCO3 were used?
b. what is the concentration of Ca2+ (in mol/L) in the 250.0 mL of CaCl2 solution?
c. How many moles of Ca2+ are contained in a 25.00mL sample?
d. How many moles of EDTA are contained in the 18.75 mL used for titration?
e. What is the concentration (in mol/L) of the EDTA solution?
a. how many moles of CaCO3 were used?
b. what is the concentration of Ca2+ (in mol/L) in the 250.0 mL of CaCl2 solution?
c. How many moles of Ca2+ are contained in a 25.00mL sample?
d. How many moles of EDTA are contained in the 18.75 mL used for titration?
e. What is the concentration (in mol/L) of the EDTA solution?