Zinc Titration with Edta

Published: 2021-06-29 07:10:07
essay essay

Category: Science

Type of paper: Essay

This essay has been submitted by a student. This is not an example of the work written by our professional essay writers.

Hey! We can write a custom essay for you.

All possible types of assignments. Written by academics

Zinc Titration with EDTA

The initial stages of the lab required the standardizations of ehylendiamineteraacetic acid by utilizing calcium carbonate solution containing CaCO3, water and 1:1 HCL acid as a titrant. Eriochrom Black T was added to the EDTA solution as an indicator in which turns from wine red to blue when an endpoint is reached. Three zinc lozenges in which were dissolved in a buffer solution maintaining a PH of 5.5, were then titrated with EDTA solution. The indicator Xylenol orange was added to the solution as it provided a definitive color change from pink to yellow when an endpoint was reached. When evaluating the results it was conclusively determined that the zinc lozenges within each trial contained 12.77 mg, 12.92 mg, and 13.06 mg of zinc. The percent average of zinc in each lozenge was calculated as 0.9246% Zn/Lozenge.

Data and Results

Table 1.1 Standardization of EDTA Solutions
Trial 1 Trial 2 Trial 3
Final Volume of EDTA in Burette (mL) 29.1 34.2 19.4
Initial Volume of EDTA in Burette (mL) 43.8 48.8 34.2
Total Amount of Titrant used (mL) 14.7 14.2 14.8
Amount of CaCO3 Reacted (g) 1.60x10^-2 1.60x10^-2 1.60x10^-2

Warning! This essay is not original. Get 100% unique essay within 45 seconds!


We can write your paper just for 11.99$

i want to copy...

This essay has been submitted by a student and contain not unique content

People also read