Answered: 1. Atomic mass of magnesium from the…

1. Atomic mass of magnesium from the Periodic Table is 24.305 g/mol. x= Moles of Mg used in this experiment = 0.0113145 mol of mg (Show your calculation)

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 101AE: This year, like many past years, you begin to feel very sleepy alter eating a large helping of...

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Concept explainers

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.

Question

Data Table
A) Mass of crucible (g)
20.442
B) Mass of magnesium and crucible (g)
20.717
C) Mass of magnesium (g)
0.215g
D) Mass of magnesium oxide (g)
First weighing: 0.453
Second weighing: 0.455
Average mass (g)
0.454g
E) Mass of oxygen (g)
0.179g
Calculations
Watch this video only if you need help in analyzing the data you collected.
https://www.youtube.com/watch?v3DVpgb1Y321WA
1. Atomic mass of magnesium from the Periodic Table is
24.305
g/mol.
x = Moles of Mg used in this experiment =
0.0113145 mol of mg
%3D
(Show your calculation)

4. Calculate the theoretical %Mg in magnesium oxide.
At.mass Mg (g/mol)
x100
Molar mass MgO (g/mol)
% Mg =
5. Calculate the experimental %Mg in the oxide.
mass Mg (g)
x 100
mass MgO (g)
% Mg (exp)=
6. Calculate the theoretical %O in magnesium oxide.
At.massO (g/mol)
= 0%
Molar mass MgO (g/mol)
x100
7. Calculate the experimental %O in the oxide.
mass O (g)
%O (exp)=
x100
mass MgO (g)

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