Podcast
Questions and Answers
What is the unit of measurement for atomic masses?
What is the unit of measurement for atomic masses?
- Kilograms
- Pounds
- Amus (correct)
- Grams
What is the relationship between the activity series and metals' ease of oxidation?
What is the relationship between the activity series and metals' ease of oxidation?
- The activity series lists metals in alphabetical order.
- The activity series is not related to metals' ease of oxidation.
- The activity series lists metals in order of decreasing ease of oxidation.
- The activity series lists metals in order of increasing ease of oxidation. (correct)
What happens when solids are heated with E=hv?
What happens when solids are heated with E=hv?
- They become magnetic
- They become more dense
- They change color.
- They emit radiation. (correct)
How is average atomic mass determined?
How is average atomic mass determined?
What does Schrödinger's wave equation create?
What does Schrödinger's wave equation create?
What is formula weight?
What is formula weight?
How many quantum numbers are in the quantum model?
How many quantum numbers are in the quantum model?
What is an empirical formula?
What is an empirical formula?
What happens to aqueous solutions?
What happens to aqueous solutions?
What is electron configuration?
What is electron configuration?
How does ionization energy change on the periodic table?
How does ionization energy change on the periodic table?
What do precipitation reactions produce?
What do precipitation reactions produce?
Which groups of elements have more variation in ionization energies?
Which groups of elements have more variation in ionization energies?
What is molarity defined as?
What is molarity defined as?
What is dilution?
What is dilution?
What must be done to chemical equations?
What must be done to chemical equations?
What is theoretical yield?
What is theoretical yield?
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Study Notes
- Atomic masses are measured in amus.
- Average atomic mass is determined by taking the atomic masses of all isotopes and their abundance.
- Formula weight is the sum of the atomic weights of all atoms in the chemical formula.
- Empirical formula is the most simplified version of a chemical formula.
- Aqueous solutions can conduct electricity and dissociate into ions.
- Precipitation reactions produce an insoluble product.
- Molarity is defined as moles of solute/volume of solution in liters.
- Dilution is adding water to a concentrated solution to make it less concentrated.
- Chemical equations must be balanced and coefficients are used to indicate amounts of components.
- Theoretical yield is the amount of product calculated to be produced before the limiting reactant runs out.
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