percent Yield of Na2cos from Baking Soda Yield mass of test tube NaHCO (before h

Question

percent Yield of Na2cos from Baking Soda Yield mass of test tube NaHCO (before heating) mass of test tube mass of NaHCO3 RECYCLE Chemical mass of test tube Na2CO3 (after heating) mass of Na2CO3 (actual yield) (after heating test tube) Example Exercise 4.1). Show the calculation for theoretical yield of Nazcos for urial 1 (see mass of Na2CO, (theoretical yield) Exercise 14.1). Show the calculation for percent yield of Na2co3 for trial 1 (see Example Percent Yield of Na2CO3 Average Percent Yield Copyright 2013 Pearson Education Decomposing Baking soda 1 CHARLES,

Explanation / Answer

actual yield = 0.025 g of Na2CO3

so..

Theoretical yield:

mol of NaHCO3 --> mass/MW = 0.261/84.007 = 0.00310 mol of baking soda

so

according to sotichiometry

1:1 ratio

so we will produce

0.00310 mol of Na2CO3

mass = mol*Mw = 0.00310 * 105.9888 = 0.3285652 g of Na2CO3 expected

so

%yield = actual / theoretical * 100%

%yield = 0.025 /0.3285652*100 = 7.60883 %

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