Molar mass exam - Study guides, Class notes & Summaries
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Mole and Molar Mass exam with 100% Correct answers already graded A+
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Avogadro's Number 
The number of atoms in 12.01 grams of Carbon 
 
 
 
Numerical Value of Avogadro's Number 
6.02 × 10²³ parts 
 
 
 
Parts= Representative Particles 
1) Atoms 
2) Ions 
3) Formula Units 
4) Molecules 
 
 
 
Mole 
The SI unit of measure for an amount of a chemical substance 
 
 
 
Molar Mass 
The mass in grams of one mole of a substance 
 
 
 
What is the molar mass of Mg(NO₃)₂? 
148.33g/mol 
 
 
 
What is the mass of 1.33 moles of Titanium, Ti? 
63.7gTi 
 
 
 
What are ...
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Chapter 7 Moles and Molar Mass exam with 100% Correct answers already graded A+.
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Chapter 7 Moles and Molar Mass exam with 100% Correct answers already graded A+.
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Molar Mass exam with 100% Correct answers already graded A+
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Molar Mass exam with 100% Correct answers already graded A+
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CHEM120 Week 8: Exam 3 (Units 5, 6, and 7) – With 100% Correct Answers- Download To Score An A+
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CHEM120 Week 8: Exam 3 (Units 5, 6, and 7) – With 100% Correct Answers- Download To Score An A+ 1. Question: (TCO 7) (a, 5 pts) Given that the molar mass of H3PO4 is 97.994 grams, determine t he number of grams of H3PO4 needed to prepare 0.25L of a 0.2M H3PO4 solution. Show your work. (b, 5 pts) What volume, in Liters, of a 0.2 M H3PO4 solution can be prepared by diluting 50 mL of a 5M H3PO4 solution? Show your work. (Pts. : 10) A. Molarity = moles of solute/liters of solution moles of solute ...
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Chemistry Test Molar Mass exam with 100% Correct answers already graded A+
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Chemistry Test Molar Mass exam with 100% Correct answers already graded A+
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CHEM 280 MIDTERM EXAM AND CHEM 280 FINAL EXAM PRACTICE TESTS WITH 300 REAL EXAM QUESTIONS WITH CORRECT DETAILED ANSWERS (EXPERT VERIFIED SOLUTIONS TO ALL CALC PROBLEMS AND FORMULAS SHOWN)
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CHEM 280 MIDTERM EXAM AND CHEM 280 FINAL EXAM PRACTICE TESTS WITH 300 REAL EXAM QUESTIONS WITH CORRECT DETAILED ANSWERS (EXPERT VERIFIED SOLUTIONS TO ALL CALC PROBLEMS AND FORMULAS SHOWN) 
1. Molarity = Moles / Volume 
2. Moles = Mass / Molar Mass 
Moles 9 is also 9 x 10^-3 Milli Moles 
3. pH = -log x Cation 
4. H3O x OH = 1 x 10^-14 
5. Total Mass = Solute + Solvent 
6. Mass Percent = Solvent Mass / Total Mass x 100 
7. Total Pressure - Partial Pressures = Remaining Pressure 
8. P1 ...
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Chemistry: 3.4 - Molar Mass exam with 100% Correct answers already graded A+
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molar mass 
the volume of one mole of an ideal gas; equal to 22.42 liters at STP 
 
 
Standard temperature and pressure (STP) the condition 0℃ 
and 1 atmosphere of pressure 
 
 
 
molecular weight 
 
 
 
formula unit 
 
 
 
Ultimately, what is a chemical compound 
A chemical compound is, ultimately, a collection of atoms. 
 
 
 
example of chemical compound, ultimately, being a collection of atoms. 
For example, methane (the major component of natural gas) consists of molecules that each conta...
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Chemistry 3.4 - Molar Mass exam with 100% Correct answers already graded A+
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Chemistry 3.4 - Molar Mass exam with 100% Correct answers already graded A+
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FINAL EXAM CHM 151 RIO SOLADO M.SCHAAB LATEST UPDATE GRADED A+
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FINAL EXAM CHM 151 RIO SOLADO 
M.SCHAAB LATEST UPDATE 
 
GRADED A+ 
 
What is the difference between an ionic bond and a covalent bond? 
 
 An ionic bond is formed when one atom transfers electrons to another atom, creating ions 
that attract each other. A covalent bond is formed when two atoms share electrons. 
 
How do you determine the number of valence electrons in an element? 
 The number of valence electrons can be determined by looking at the group number of the 
element in the periodic t...
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Mole and Molar Mass exam with 100% Correct answers already graded A+
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Mole and Molar Mass exam with 100% Correct answers already graded A+
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