A. Formula mass of a carbonate. u.63 Assuming a formula of MCO, for your carbona

Question

A. Formula mass of a carbonate. u.63 Assuming a formula of MCO, for your carbonate, write balanced molecular and net ionic equations for the reaction between your carbonate and HCi. I. 0.84 2. Calculations a. Unknown number b. Molarity of HCl solution c. Molarity of NaOH solution 112 .5388 0,2319M flask 1 flask 2 flask 3 d. Mass of flask +carbonate e. Mass of flask f. Mass of carbonate g. Volume of HCl solution Inm h. Moles of HCI i. Final buret reading j. Initial buret reading k. Volume of NaOH solution 3I0M 1. Moles of NaOH 3.29, 1.00 4, m. Moles of carbonate (consider mole ratio) Formula mass of carbonate n. o. Average formula mass of carbonate Probable identity of metal carbonate Percentage error of formula mass ta obtained with a pH meter, use next page. SCenpae Leaning All Rights Reserved May not be scansed, copied or duplicateod, or posted to a publidly accesible website, in whole or i part

Explanation / Answer

l)

mol of NaOH = MV = (0.2319)(13.10*10^-3) = 0.00303789 mol of NaOH

m)

mol of carbonate --> mol of HCl - mol of NaOH

mol of HCl used in CO#- = MVacid - 0.00303789 = 0.53858*10*10^-3 - 0.00303789 = 0.00234791 mol of HCl

now..

mol of CO3- = 2 mol of HCl

mol of CO3- = 0.00234791/2 = 0.001173955 mol of CO3-2

m = 0.001173955 mol f CO3-2

formula mass

MW = mass/MW = 1.001/0.001173955 = 852.673 g/mol

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.