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Standard 3: Conservation of Matter and Stoichiometry - 17% of Star Exam
The conservation of atoms in chemical reactions leads to the principle of conservation of matter and the ability to calculate the mass of products and reactants. As a basis for understand this concept:
State Standard:
How to describe chemical reactions by writing balanced equations. |
Students Will Be Able To:
Apply the law of the conservation of matter to write balanced chemical equations. |
Lecture Notes
- Chapter 5.3 – Electron Configurations, Quantum Atom, & Wave Mechanical View of H Std 1 & 2
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State Standard:
The quantity one mole is defined so that one mole of carbon 12 atoms has a mass of exactly 12 grams |
Students Will Be Able To:
Understand the origin of the masses of elements based on the carbon-12 standard |
State Standard:
One mole equals 6.02x10^23 particles (atoms or molecules). |
Students Will Be Able To:
Use the mole concept to calculate the number of particles within a giving mass of a substance |
State Standard:
How to determine molar mass of a molecule from its chemical formula and a table of atomic masses, and how to convert the mass of a molecular substance to moles, number of particles of volume of gas at standard temperature and pressure. |
Students Will Be Able To:
Calculate the molar mass from a chemical formula. Convert mass to moles to volume |
Lecture Notes
- Lecture Notes – Ch 15 Solutions Std 6 a,b,c
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State Standard:
How to calculate the masses of reactants and products in a chemical reaction from the mass of one of the reactants or products, and the relevant atomic masses. |
Students Will Be Able To:
Perform an experiment to determine the quantitative relationships between reactants and products in a balanced chemical equation. I&E (12A): Select and use appropriate tools and technology (such as computer-linked probes, spreadsheets and graphing calculators) to perform tests, collect data, analyze relationships, and display data. I&E (12B): Identify and communicate sources of unavoidable experimental error. I&E (12C): Identify possible reasons for inconsistent results, such as sourced of error or uncontrolled conditions. |
State Standard:
How to calculate percent yield in a chemical reaction. |
Students Will Be Able To:
Calculate their percent yield from experimental results. |
State Standard:
How to identify reactions that involve oxidation and reduction and how to balance oxidaton-reduction reactions. |
Students Will Be Able To:
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