Answered: Using dimensional analysis, find the…

Using dimensional analysis, find the theoretical mass of the Zn3(PO4)2-4H20 precipitate that should be produced when 2.19 g of Zn(C2H3O2)2•2H2O reacts completely.

EBK A SMALL SCALE APPROACH TO ORGANIC L

4th Edition

ISBN:9781305446021

Author:Lampman

Publisher:Lampman

Chapter13: Isolation Of Eugenol From Clov

Section: Chapter Questions

Problem 9Q

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Question

7.
2. Using dimensional analysis, find the theoretical mass of the Zn3(PO4)2-4H20 precipitate
that should be produced when 2.19 g of Zn(C2H3O2)2-2H2O reacts completely.
2.199
Find the exnerimental mass of Zn3(PQ4)2:4H20 formed using your data table.

Expert Solution

Step 1

Given : Mass of Zn(C₂H₃O₂)₂.2H₂O reacting = 2.19 g

Molar mass of Zn(C₂H₃O₂)₂.2H₂O = Atomic mass of Zn + ( Atomic mass of C X 2 + Atomic mass of H X 3 + Atomic mass of O X 2 ) X 2 + Molar mass of H₂O X 2

=> Molar mass of Zn(C₂H₃O₂)₂.2H₂O = 65.4 + (12 X 2 + 1 X 3 + 16 X 2) X 2 + 18 X 2 = 219.4 g/mol.

Since mass = moles X molar mass

=> 2.19 = moles of Zn(C₂H₃O₂)₂.2H₂O reacting X 219.4

=> Moles of Zn(C₂H₃O₂)₂.2H₂O reacting = 0.010 mol approx.

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