Question

1) Making the Standard CaCO3 Solution
You weigh out pure Calcium carbonate.... 0.1404 g

a) Calculate how many whole drops (.05 mL/drop) of 6 M HCl are required to dissolve this. ___________ drops
b) What is the Ca concentration when this is dissolved and diluted to 100.00mL? ____________ M

2) Standardizing the EDTA solution
You standardize an EDTA solution using the Ca solution made in 1) above.
Given the following data, calculate the molarity of the EDTA.

Volume of Calcium solution used 6.00 mL
Volume of EDTA solution used 7.15 mL
c) Calculated molarity of EDTA solution __