Consider two solutions, the first being 50.0 mL of 1.00 M CuSO4 and the second 50.0 mL of 2.00 M KOH. When the two solutions are mixed in a constant-pressure calorimeter, a precipitate forms and the temperature of the mixture rises from 21.5 to 27.7 °C. (a) Before mixing, how many grams of Cu are present in the solution of CuSO4?

Video transcript

Hey everyone, we're asked to calculate the mass of our chlorine ion in 100 ml of 0.50 moller of sodium chloride. To answer this question, we're simply going to use our dimensional analysis. Starting off with 100 ml. We'll go ahead and convert this into leaders. So we know that we have 10 to the third middle leaders per one leader. And we were told that we have 0.50 moller which is mole of sodium chloride Per one L of sodium chloride. And now looking at our multiple ratios, we know that one mole of sodium chloride contains one mole of our chlorine and ion. And looking at our periodic table, We can see that we have 35.45 g of our chlorine, an ion per one mole. And when we calculate this out and cancel out all our units, We end up with a value of 1.77 g of our chlorine an ion, which is our final answer. So I hope that made sense. And let us know if you have any questions