10) Calculate the moles of magnesium ( Show your calculation) 4/Downloads/CHM%20111%20Empirical%20Formula%20.pdf++1430 673 g1. Mass of crucible and lid (g)2. Mass of crucible and lid (g) (optional second heating)30.896 g3. Mass of crucible, lid and magnesium (g)0.223 g4. Mass of magnesium (g)Changed from green to blue(pH 6 to 9)Description of color change of pH paper30.974 g5. Mass of crucible, lid and product (g)6. Mass of crucible, lid and product (g) (optional second heating)7. Calculate the mass of product (g). (show your calculation)0.301 g30.974 g - 30.673 g0.078 g8. Calculate the mass of oxygen (g) in the product. (show your calculation)0.301g - 0.223 g74.1 % Mg25.9 % O9. Calculate the mass percent of magnesium and oxygen in the product% mg= 0.223 g/0.301 g x 100 % = 74.1 %%0 = 0.078 g /0.301 g x 100 % = 25.9 %10. Calculate the moles of magnesium (show your calculation)11. Calculate the moles of oxygen (O) in the product (show your calculation)12. What is the empirical formula of the compound?

Mole can be defined as a standard unit for measuring large quantities of very small entities such as…

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10) Calculate the moles of magnesium ( Show your calculation

Chemistry & Chemical Reactivity

10th Edition

ISBN:9781337399074

Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Chapter11: Intermolecular Forces And Liquids

Section11.6: Properties Of Liquids

Problem 1.2ACP

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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

10) Calculate the moles of magnesium ( Show your calculation)

4/Downloads/CHM%20111%20Empirical%20Formula%20.pdf
++
14
30 673 g
1. Mass of crucible and lid (g)
2. Mass of crucible and lid (g) (optional second heating)
30.896 g
3. Mass of crucible, lid and magnesium (g)
0.223 g
4. Mass of magnesium (g)
Changed from green to blue
(pH 6 to 9)
Description of color change of pH paper
30.974 g
5. Mass of crucible, lid and product (g)
6. Mass of crucible, lid and product (g) (optional second heating)
7. Calculate the mass of product (g). (show your calculation)
0.301 g
30.974 g - 30.673 g
0.078 g
8. Calculate the mass of oxygen (g) in the product. (show your calculation)
0.301g - 0.223 g
74.1 % Mg
25.9 % O
9. Calculate the mass percent of magnesium and oxygen in the product
% mg= 0.223 g/0.301 g x 100 % = 74.1 %
%0 = 0.078 g /0.301 g x 100 % = 25.9 %
10. Calculate the moles of magnesium (show your calculation)
11. Calculate the moles of oxygen (O) in the product (show your calculation)
12. What is the empirical formula of the compound?

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