Lab 6

The purpose of this lab was to combine the compounds sodium hydrogen carbonate and hydrochloric acid, and then evaporate the liquid so you are only left with salt. This lab helped increase my understanding of mass-mass equations and in understanding chemical equations in general.

#1. We determined that  NaHCO3 was the limiting factor. We determined this by concluding that we would need more of this to have a higher yield, but solely increasing the acid amount would not increase our yield.

#2. We determined our theoretical yield to be 1.39 grams. We determined this by first starting through a number of conversions that can be seen in the photo below.

#3. We determined the mass of our remaining solid product to be 1.24 grams. We did this in the steps shown in the picture below.

#4. Our percent yield was 89.2%, which we found by dividing out actual remaining solid product mass(1.24g,) by the theoretical yield(1.39g.).  Error in our percent yield was most likely due to popping of the solution which lost some of the NaCl which would have altered our data.