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Unit 4: Stoichiometry (The Mole (Definitions ((Molar ratio: the ratio…

- - - - Molar ratio: the ratio between the amounts in moles of two or more compounds involved in a chemical reaction
        
        H2 + O2 --> H2O2. 1 mol hydrogen/ 1 mol Oxygen
    - - Molar mass: the mass of a given chemical element or chemical compound (g) divided by the amount of substance (mol)
        
        Ex. N: 14.01, H: 3 x 1.01. NH3 --> 17.04 g mol-1
    - - Molar volume: the volume occupied by one mole of ideal gas at STP. (Standard Temperature and Pressure).
        
        Ex. helium gas occupies a volume of 6.8 L at 0°C and 100 kPa.
    - - Avogadro's Number: Number of particles per mole of a substance
        
        6.02 x 10²³
    - - Stoichiometry: a section of chemistry that involves using relationships between reactants and/or products in a chemical reaction to determine desired quantitative data
        
        Ex: Can help scientists convert units, discover the quantitive relationship between elements and compounds
- - - - EX: In the production of ammonia, the limited reactant is nitrogen because there is less than expected by the theoretical value, whereas hydrogen is the excess reactant because there is more present than what is needed.
        
        The limited reactant is used by chemists to show why only a certain amount of a product is formed compared to what was shown in the theoretical value.
- - - - Percent Yield = 5.39 g / 5.79 g x 100% = 93.1%