This chemistry question involves key chemical concepts and calculations. The detailed solution below walks through each step, from identifying the reaction type to computing the final answer.
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Here are the solutions to the chemistry questions: 1. (a) Define the following: (i) Chemical stoichiometry: The study of the quantitative relationships between reactants and products in chemical reactions. (ii) Molar mass: The mass of one mole of a substance, expressed in grams per mole (g/mol). (iii) Molarity: The concentration of a solute in a solution, expressed as the number of moles of solute per liter of solution (mol/L). (iv) Empirical formula: The simplest whole-number ratio of atoms in a compound. (v) Limiting reagent: The reactant that is completely consumed in a chemical reaction, thereby limiting the amount of product that can be formed. 1. (b) Calculate the molar mass of each of the following: Given atomic masses: K=39, Mn=55, O=16, H=1, Ca=40, Cl=35.5, C=12, Na=23, Fe=56, N=14. (i) KMnO_4 Molar mass = (1 × 39) + (1 × 55) + (4 × 16) = 39 + 55 + 64 = 158 g/mol *(ii) $CaCl_2 ·