Experiment 9 Determination of Mass and Mole Relationship in a Chemical Reaction

Experiment 9 Determination of Mass and Mole Relationship in a Chemical Reaction 

Background This experiment uses the concept of continuous variation to determine mass and mole relationships. Continuous variation keeps the total volume of two reactants constant, but varies the ratios in which they combine. The optimum ratio would be the one in which the maximum amount of both reactants of known concentration are consumed and the maximum amount of product(s) is produced. Since the reaction is exothermic, and heat is therefore a product, the ratio of the two reactants that produces the greatest amount of heat is a function of the actual stoichiometric relationship. Other products that could be used to determine actual molar relationships might include color intensity, mass of precipitate formed, amount of gas evolved, and so on. 

Write the net ionic equations involved in this experiment. 

Show the steps necessary to produce the 0.5 M sodium hypochlorite solution. 

The commercial bleach was 5.20% NaClO. The directions required making a 0.500 M solution. MM of NaClO = 74.44 g moT1. 300. mL of solution should contain 11.2 g NaClO  

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