Question

Please help. I'm not good with Mole ratios. I don't need you to give me the answer, but could you just explain to me how to figure the answer out? Thanks sooo much if you can!
(you gotta look at the attached file :) )

Answer 1

Welcome aboard to QC!! ^

Answer 2

thx

Answer 3

Starting with the first reaction - notice how the mole ratio of Cu(NO3)2 and NaOH is 1:2

That means the reaction uses up 2 moles of NaOH per 1 mole Cu(NO3)2

Compare this to reaction 3 where the ratio is 1:3. Assuming the mole amounts of reactants in all the reactions were equal, then reaction 3 should use up NaOH quicker and thus produce less product —> lighter color

Now, your actual experimental results might not “agree” with this but this is what should happen in theory

Answer 4

please close this question when done <3