produ&l; amount amount of is the of produ least the out first and therefore limi

Question

produ&l; amount amount of is the of produ least the out first and therefore limit reactant product equation wil d product based on the limiting of the balanced it to grams using the molar the this The number grams. equation given in theoretical ld theoretic yie experiment using the and the yield in your period: e percent your lab introduction notebook before laboratory Prepare the Data Tables in your hten solid TIONS DATA TABLE 1. earance of solid Appearance ofNicle 6H20 solution Green, solution clear Appearance of liquid hot to the hydrate Appearance mixture after the addition of of solution to Appearance of reaction mixture after old, purple Cleon urple residue addition of acetone ple powder Color of the product after drying DATA TABLE 2. ExPERIMENTAL DATA Mass of NiCl2 6H20 Volume of ethylenediamine solution Mass percent of ethylenediamine solution Mass of filter paper watch glass Mass of filter paper t watch glass product Mass of product hesis of Tris(ethylenediamine) nickel chloride (ll)

Explanation / Answer

Balanced equation,

NiCl2.6H2O + 2H2N(CH2)2NH2 --> [Ni(H2NCH2CH2NH2)2]Cl2.6H2O

moles of product formed = 0.0021 mol

molar mass of product = 359.2 g/mol

Theoretical mass of product formed = 0.0021 x 359.2 = 0.754 g

Actual mass of product formed = 0.77 g

Mass of product formed is greater than the theoretical yield which could be due to excess moisture present in the product.

Percent yield = 0.77 x 100/0.754 = 102%

Error due to product not dried completely.

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