Chem 103 molecular mass Study guides, Class notes & Summaries
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Chem 103 Module 1 to 6 Exam with Verified answers (100 OUT OF 100) Portage learning (Latest Update)
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Chem 103 Module 1 to 6 Exam with Verified answers (100 OUT OF 100) Portage learning (Latest Update) 
 
 
MODULE 1 EXAM 
Question 1	 Click this link to access the Periodic Table. This may be helpful throughout the exam. 
1.	Convert 845.3 to exponential form and explain your answer. 
2.	Convert 3.21 x 10-5 to ordinary form and explain your answer. 
 
 
1.	Convert 845.3 = larger than 1 = positive exponent, move decimal 2 places 
= 8.453 x 102 
2.	Convert 3.21 x 10-5 = negative exponent = smalle...
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CHEM 103 Lab Report 8 Molecular Mass (GRADED A) Latest Update (100% Correct Elaborations)
- Exam (elaborations) • 3 pages • 2024
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CHEM 103 Lab Report 8 Molecular Mass (GRADED A) Latest Update (100% Correct Elaborations)
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CHEM 103 Experiment 8 Molecular Mass Latest 100%Solved (Portage Learning).
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CHEM 103 Experiment 8 Molecular Mass Latest 100%Solved (Portage Learning). 
Experiment #: 8 Title: Molecular Mass 
Purpose: To Determine the Molar mass of unknowns. Molar mass estimation by 
freezing point depression. Determining the freezing point of the solvent cyclohexane 
and unknown solutes. Lastly, estimating the molar mass of solutes compared to the 
actual value. 
Procedure : 
Cyclohexane Molar Mass Cooling Curve 
● Measure 10 ml of cyclohexane and place it in a test tube. 
● Cap the...
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CHEM 103 Experiment 8 Molecular Mass Latest 100%Solved (Portage Learning).
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CHEM 103 Experiment 8 Molecular Mass Latest 100%Solved (Portage Learning). 
Experiment #: 8 Title: Molecular Mass 
Purpose: To Determine the Molar mass of unknowns. Molar mass estimation by 
freezing point depression. Determining the freezing point of the solvent cyclohexane 
and unknown solutes. Lastly, estimating the molar mass of solutes compared to the 
actual value. 
Procedure : 
Cyclohexane Molar Mass Cooling Curve 
● Measure 10 ml of cyclohexane and place it in a test tube. 
● Cap the...
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CHEM 103 Experiment 8 Molecular Mass Latest 100%Solved (Portage Learning).
- Exam (elaborations) • 4 pages • 2023
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- $10.99
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CHEM 103 Experiment 8 Molecular Mass Latest 100%Solved (Portage Learning). 
Experiment #: 8 Title: Molecular Mass 
Purpose: To Determine the Molar mass of unknowns. Molar mass estimation by 
freezing point depression. Determining the freezing point of the solvent cyclohexane 
and unknown solutes. Lastly, estimating the molar mass of solutes compared to the 
actual value. 
Procedure : 
Cyclohexane Molar Mass Cooling Curve 
● Measure 10 ml of cyclohexane and place it in a test tube. 
● Cap the...
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CHEM 103 Lab Report 8 Molecular Mass (GRADED A) Latest Update | 100% CORRECT
- Exam (elaborations) • 3 pages • 2024
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CHEM 103 Lab Report 8 Molecular Mass (GRADED A) Latest Update | 100% CORRECT
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CHEM 103 MODULE 2 EXAM 2022
- Exam (elaborations) • 7 pages • 2023
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CHEM 103 
MODULE 2 EXAM 2022 
Question 1 Click this link to access the Periodic Table. This may be helpful throughout the exam. 
Show the calculation of the molecular weight for the following compounds, reporting your answer to 2 places after the decimal. 
1. Al2(CO3)3 
2. C8H6NO4Cl 
1. 2Al + 3C + 9O = 233.99 
2. 8C + 6H + N + 4O + Cl = 215.59 
Question 2 Click this link to access the Periodic Table. This may be helpful throughout the exam. 
Show the calculation of the number of moles in the giv...
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CHEM 103 EXPERIMENT 8 MOLECULAR MASS BY FREEZING POINT
- Exam (elaborations) • 4 pages • 2023
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CHEM 103 EXPERIMENT 8 MOLECULAR MASS BY FREEZING POINT/CHEM 103 EXPERIMENT 8 MOLECULAR MASS BY FREEZING POINT/CHEM 103 EXPERIMENT 8 MOLECULAR MASS BY FREEZING POINT
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CHEM 103 Experiment 8 Molecular mass (Portage learning)
- Exam (elaborations) • 3 pages • 2023
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CHEM 103 Experiment 8 Molecular mass (Portage learning) 2023
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Chem 103: Module 4 Exam Questions And Answers (Verified And Updated)
- Exam (elaborations) • 3 pages • 2024
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Chem 103: Module 4 Exam Questions And 
Answers (Verified And Updated) 
Avogadro's number - answer6.022 x 10^23 atoms = 1 mole 
1 u = ___ g - answer1.661 x 10 ^-24 g 
formula mass - answerthe sum of the average atomic masses of each atom represented in the 
chemical formula and is expressed in atomic mass units. 
--The formula mass of a covalent compound is also called the molecular mass. 
The chemical identity of a substance is defined by - answerthe types and relative numbers of 
atoms composi...
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