Hi everyone, For a science lab, I am asked to find the following: What factor(s) affect percent yield in a reaction which produces calcium carbonate? We are given a selection of chemicals to use to get the [tex]CaCl_2[/tex] but I have chosen the following: [tex]CaCl_2 + Na_2CO_3 --> CaCO_3 + 2NaCl[/tex] We are to do at least 4 trials of changing the grams of [tex]Na_2CO_3 [/tex]. I'm not sure what are the factors that affect % yeild. Would is be Molarity? Any help would be appreciated, Chris.