7.) You need to make an aqueous solution of0.140 M nickel(II) sulfate for anexperiment in lab, using a 250 mL volumetricflask. How much solid nickel(II) sulfate shouldyou add?
How many milliliters of an aqueous solution of0.175 M sodium hydroxide isneeded to obtain 5.85 grams of the salt?
8.)
In the laboratory you dissolve 14.0 g ofnickel(II) sulfate in a volumetric flask and addwater to a total volume of 250 mL.
What is the molarity of the solution?
What is the concentration of the nickelcation?
What is the concentration of the sulfateanion?
b.) In the laboratory you dissolve 17.5 g ofsodium hydroxide in a volumetric flask and addwater to a total volume of 125 mL.
What is the molarity of the solution?
What is the concentration of the sodiumcation?
What is the concentration of the hydroxideanion?
