Podcast
Questions and Answers
Identify the limiting component when assembling a bicycle with the given parts: 4 handle bars, 4 seats, 3 frames, 7 pedals, and 5 wheels.
Identify the limiting component when assembling a bicycle with the given parts: 4 handle bars, 4 seats, 3 frames, 7 pedals, and 5 wheels.
- Handle bar
- Pedals
- Frame (correct)
- Seat
How many oxygen atoms are present in 0.412 moles of Fe2O3?
How many oxygen atoms are present in 0.412 moles of Fe2O3?
- 2.48 x 10^23 oxygen atoms
- 7.44 x 10^23 oxygen atoms
- 4.96 x 10^23 oxygen atoms (correct)
- 2.48 x 10^24 oxygen atoms
Determine the mass of iron in grams of 7.24 x 10^22 iron atoms.
Determine the mass of iron in grams of 7.24 x 10^22 iron atoms.
- 0.120 g
- 1.30 x 10^21 g
- 465 g
- 6.71 g (correct)
What volume of solution (in L) is needed to make a 0.118 M solution when 22.4 g of CaCl2 is dissolved?
What volume of solution (in L) is needed to make a 0.118 M solution when 22.4 g of CaCl2 is dissolved?
Which substance is NOT soluble in water?
Which substance is NOT soluble in water?
Which of the following processes represents a chemical change?
Which of the following processes represents a chemical change?
What is the oxidation state of phosphorus in PO2+?
What is the oxidation state of phosphorus in PO2+?
How many neutrons are present in the isotope 37Cl?
How many neutrons are present in the isotope 37Cl?
Which is the correct molecular formula for a compound with an empirical formula of C2H2O and a molar mass of 210.20 g/mol?
Which is the correct molecular formula for a compound with an empirical formula of C2H2O and a molar mass of 210.20 g/mol?
What is the chemical name for Mg(ClO2)2?
What is the chemical name for Mg(ClO2)2?
What is the correct coefficient of O2 when balancing the equation NH3 (g) + O2 (g) → NO2 (g) + H2O (g)?
What is the correct coefficient of O2 when balancing the equation NH3 (g) + O2 (g) → NO2 (g) + H2O (g)?
Which of the following has the highest density in grams for water when measured in a room of given dimensions and density?
Which of the following has the highest density in grams for water when measured in a room of given dimensions and density?
Which of the following substances are considered non-electrolytes?
Which of the following substances are considered non-electrolytes?
Flashcards
Limiting Reactant
Limiting Reactant
The reactant that is completely consumed in a chemical reaction, thus limiting the amount of product that can be formed.
Avogadro's Constant
Avogadro's Constant
The number of atoms, molecules, or ions in one mole of a substance, approximately 6.022 × 10^23.
Molar Mass
Molar Mass
The mass of one mole of a substance, expressed in grams per mole (g/mol).
Molarity
Molarity
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Solubility in Water
Solubility in Water
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Balancing Chemical Equations
Balancing Chemical Equations
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Stoichiometry
Stoichiometry
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Mole Concept
Mole Concept
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Calculating Theoretical Yield
Calculating Theoretical Yield
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Conversion Factors
Conversion Factors
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Significant Figures
Significant Figures
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Chemical Change
Chemical Change
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Magnesium Chlorite
Magnesium Chlorite
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Number of Electrons in Cr+
Number of Electrons in Cr+
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Number of Neutrons in 37Cl
Number of Neutrons in 37Cl
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Empirical Formula
Empirical Formula
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Molecular Formula
Molecular Formula
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Oxidation State of Phosphorus in PO2+
Oxidation State of Phosphorus in PO2+
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Non-Electrolyte
Non-Electrolyte
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Study Notes
General Chemistry I - Midterm I
- Date: October 23, 2024
- Time: 3:30 PM - 4:20 PM
- Duration: 50 minutes
- Course: CHEM104-002/003
- Instructor: Dr. Vince Guo
- Materials: Test booklet (8 pages), Scantron sheet, spare paper, periodic table and constants, equations, pen, pencil, non-graphing calculators
Instructions
- Write name and student number on the test.
- Part A answers are in the designated space; answers elsewhere will not be graded.
- Underline final answers for Part A.
- Part B multiple choice answers on the Scantron sheet.
- Test is double-sided.
- Read questions carefully; answer only what is asked.
- Use pencil for Scantron.
- No extra time for filling in scantron.
- Cheating on the exam is serious academic misconduct and will be reported to the Associate Dean.
Part A - Short Answer Questions (10 points)
- Report final answers to correct significant figures and units.
- Show all calculation work for full marks.
Part B - Multiple Choice (40 points, 2 points each)
- All answers must be marked on a Scantron sheet.
- Complete questions 1-20 covering various chemistry concepts (chemical changes, chemical formulas, electron counts, neutron counts and calculations).
Additional Information
- Provide oxidation half reactions and activity series references for additional questions.
- The Periodic table and solubility rules are provided.
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Description
Prepare for the General Chemistry I Midterm with this quiz that covers key concepts and problem-solving techniques. It focuses on material from CHEM104, catering to both short answer and multiple-choice formats. Ensure you're familiar with significant figures, unit reporting, and the use of calculators.
