35 g of sodium reacts with water to produce sodium hydroxide and hydrogen gas. What is percent yield if in the lab 63 grams of sodium hydroxide was obtained?

You are making a solution of calcium chloride dissolved in water. you add solid, stir, and it dissolves. you add just a spatula tip full, stir, and the solid does not dissolve. how could you describe the solutions before and after adding the spatula tip amount