How many grams of chlorine are in 269 milliliters of a 1.362 M MgCl2 solution? Hint: the solubility of MgCl2 is high enough for all of it to completely dissolve. You can assume that the molar mass of dissolved Cl- ions is the same as molar mass of Cl atoms you can look up in the periodic table. Enter your answer in the units of g, do not enter the unit.

4) Environmental chemists mostly define solutions in molar units. Environmental engineers typically use mass units like mg/L. Convert the following concentrations: Solute mg/L Nacl 0.01 Na2CO3 10.0 NH3 1.0 x 106 Since the conversions are a function of molar mass, a spreadsheet makes quick work of these calculations if molar mass is entered as a known.

Calculate the molarity of the solution when 1005 mL of solution contains 0.037 g of barium acetate. Is a molar mass needed for this calculation? Enter either yes or no. If so, calculate the molar mass using our periodic table and enter with the proper s.f. If not, enter 0. Do not include units. g/mol In the three blanks, enter the results of the calculation: value (decimal notation with proper s.f.), units, and substance (in this order).

Suppose you have 200.0 mL of a 0.750 M sodium hydroxide solution. How many moles of sodium hydroxide are in the solution?