Tutorial 4 SOLUTION STOICHIOMETRY - EIU
T-27Tutorial 4SOLUTION STOICHIOMETRYSolution STOICHIOMETRY calculations involve chemical reactions taking place in the various methods of expressing SOLUTION concentration the most convenient for generallaboratory use is molarity, which is defined: Moles of solute nsoluteMolarity = or M = Liters of SOLUTION LsolnChemical reactions are written in terms of moles of reactants and products; this molarityconcentration unit relates moles of solute to volume of SOLUTION . Thus, easily measured solutionvolumes provide a simple method of measuring moles of : What is the molarity of a SOLUTION made by dissolving g of potassium chloridein enough water to make mL of SOLUTION ?This data gives a relationship between amount of solute and volume of SOLUTION : g KCl mL. To find molarity we must convert grams KCl to moles KCl and mL SOLUTION to g KCl 1 mol KCl 1000 mL mol KCl x x = or M KCl mL g KCl L LWhenever the SOLUTION concentration is given in molarity, M, you must change to the equivalentunits, mol/L or mol/1000 mL, to use as a conversion : What mass of solute is contained in mL of a M KCl SOLUTION ?
hydroxide solution for neutralization. What is the molarity of the acid? 24) 25.00 mL of a 0.0525 M calcium hydroxide solution is titrated with 0.111 M hydrochloric acid solution. What volume of acid is needed for complete neutralization? 25) 25.00 mL of 0.0962 M hydrochloric acid is titrated with a calcium hydroxide solution, and
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