For unlimited access to Homework Help, a Homework+ subscription is required.
Calculate the concentration (M) of sodium ions in a solution made by diluting 20.0 mL of a 0.674 M solution of sodium sulfide to a total volume of 200 mL.
Calculate the concentration (M) of sodium ions in a solution made by diluting 13.7 mL of a 4.08 M solution of sodium sulfate (Na2SO4) to a total volume of 100.0 mL. Please use 3 sig figs since Canvas does not understand sig figs.
a) What is the molarity of Cu2+(aq) ions in a solution made by diluting 15.00 mL of a 3.50 M Cu(NO3)2 solution to a final volume of 100.00 mL?
b) A student preformed a titration experiment to determine the molarity of a sodium hydroxide solution. 22.45 mL of a NaOH solution were required to reach the equivalence point when titrating 50.0 mL of a solution containing 2.4567 g of potassium hydrogen phthalate (KHC8H4O4). What is the concentration of the sodium hydroxide solution?