Relative atomic mass - Introduction | Stoichiometry I: The Mole and Chemical Formulae - Chemistry (Undergraduate Foundation)

22 hours ago This lesson defines Relative Atomic Mass as the mass of an atom relative to the carbon-12 standard. We explain the contribution of isotopes to the weighted average atomic mass of an element. Master this concept to accurately use the periodic table for mass calculations.
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Stoichiometry I: The Mole and Chemical Formulae - Chemistry (Undergraduate Foundation)
Stoichiometry I: The Mole and Chemical Formulae - Chemistry (Undergraduate Foundation)
This course covers the foundational principles of chemical measurement. It provides a complete treatment of the mole concept, molar mass, and the determination of empirical and molecular formulae from gravimetric (mass-based) experimental data. The material also covers the essential skill of calculating solution concentrations, including molarity. A command of the mole concept is the absolute, non-negotiable foundation for all quantitative chemistry. These are the accounting principles used in every laboratory and industrial process to measure chemical substances. This knowledge is essential for preparing solutions of a known concentration and for determining the identity of an unknown compound. By the end of this course, you will be able to perform all calculations involving the mole, molar mass, and Avogadro's number. You will also be able to determine the empirical and molecular formula of any compound from its percentage composition or combustion data, and calculate the concentration of solutions in moles per dm³. This course is for students who have completed a course on atomic theory. It is the mandatory starting point for the study of stoichiometry and is a prerequisite for any further study in chemistry, chemical engineering, or the biomedical sciences.

This course covers the foundational principles of chemical measurement. It provides a complete treatment of the mole concept, molar mass, and the determination of empirical and molecular formulae from gravimetric (mass-based) experimental data. The material also covers the essential skill of calculating solution concentrations, including molarity. A command of the mole concept is the absolute, non-negotiable foundation for all quantitative chemistry. These are the accounting principles used in every laboratory and industrial process to measure chemical substances. This knowledge is essential for preparing solutions of a known concentration and for determining the identity of an unknown compound. By the end of this course, you will be able to perform all calculations involving the mole, molar mass, and Avogadro's number. You will also be able to determine the empirical and molecular formula of any compound from its percentage composition or combustion data, and calculate the concentration of solutions in moles per dm³. This course is for students who have completed a course on atomic theory. It is the mandatory starting point for the study of stoichiometry and is a prerequisite for any further study in chemistry, chemical engineering, or the biomedical sciences.

This course is also part of the following learning track. You can join the track to gain comprehensive knowledge across related courses.
CHM 101: General Chemistry I
CHM 101: General Chemistry I
This learning track delivers the complete NUC CCMAS curriculum for General Chemistry I. It is a comprehensive programme designed to build a robust, university-level foundation in modern chemistry. The track systematically covers all essential topics, from atomic theory, chemical bonding, and the states of matter, to the quantitative principles of stoichiometry, equilibrium, thermodynamics, and kinetics. This programme is for first-year undergraduates in science, technology, engineering, and mathematics (STEM) faculties who are required to take CHM 101. It is also essential for any student or professional globally who needs a rigorous and complete foundation in first-year university chemistry for further study or career development. This track delivers a full skill set in chemical theory and quantitative problem-solving. Graduates will be able to determine molecular structures, calculate reaction quantities, analyse the energetics and rates of reactions, and solve complex equilibrium problems. This programme provides the non-negotiable prerequisite knowledge for all subsequent chemistry courses and for any degree in the physical sciences, engineering, or medicine.

This learning track delivers the complete NUC CCMAS curriculum for General Chemistry I. It is a comprehensive programme designed to build a robust, university-level foundation in modern chemistry. The track systematically covers all essential topics, from atomic theory, chemical bonding, and the states of matter, to the quantitative principles of stoichiometry, equilibrium, thermodynamics, and kinetics. This programme is for first-year undergraduates in science, technology, engineering, and mathematics (STEM) faculties who are required to take CHM 101. It is also essential for any student or professional globally who needs a rigorous and complete foundation in first-year university chemistry for further study or career development. This track delivers a full skill set in chemical theory and quantitative problem-solving. Graduates will be able to determine molecular structures, calculate reaction quantities, analyse the energetics and rates of reactions, and solve complex equilibrium problems. This programme provides the non-negotiable prerequisite knowledge for all subsequent chemistry courses and for any degree in the physical sciences, engineering, or medicine.

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