An excess of sodium carbonate, Na, CO3, in solution is added to a solution containing 17.87 g CaCl2. After performing the experiment, 13.19 g of calcium carbonate, CaCO3, is produced. Calculate the percent yield of this reaction.

Approximately .

Explanation:

Balanced equation for this reaction:

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Look up the relative atomic mass of elements in the limiting reactant, , as well as those in the product of interest, :

Calculate the formula mass for both the limiting reactant and the product of interest:

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Calculate the quantity of the limiting reactant () available to this reaction:

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Refer to the balanced equation for this reaction. The coefficients of the limiting reactant () and the product () are both . Thus:

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In other words, for every of formula units that are consumed, of formula units would (in theory) be produced. Thus, calculate the theoretical yield of in this experiment:

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Calculate the theoretical yield of this experiment in terms of the mass of expected to be produced:

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Given that the actual yield in this question (in terms of the mass of ) is , calculate the percentage yield of this experiment:

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the awnser is group 12

a. energy is absorbed in the reaction.

if in a given reaction the energy of products is greater than the energy of reactants it means that reaction is endothermic and during the reaction, the energy is absorbed by reactants. in an endothermic reaction, the products have more stored chemical energy than the reactants. and in this reaction the reactants are more stable than products before the compounds with less energy are always more stable.