CH1010 Study Guide - Quiz Guide: Molar Mass, Chemical Equation, Sodium Chloride
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Let"s assume the volume of nacl is x l, and therefore 3x l of kcl are used. The nal volume after mixing will be 4x l. 4x l: an aqueous solution which is 30. 0% by mass sulfuric acid (i. e. , h2so4(aq)) has a density of 1. 219 g/ml. Hint: begin by assuming you have a xed volume of solution (such as 10 ml, or 100 ml, or 1000 ml, or . solution. If we take an arbitrary 100. ml of the solution, there will be 121. 9 g of solution (i. e. , h2o + 30. 0% of this mass is h2so4, which means there are 36. 6 g of h2so4. Dividing by the molar mass of h2so4 (98. 09 g/mol) yields 0. 373 mol of h2so4. 0. 373 mol/0. 100 l = 3. 73 m: to 50. 00 ml of 0. 400 m cabr2(aq) is added 100. 00 ml of 0. 200 m cacl2(aq) and 100. 00 ml of 0. 100 m.
