Question

1. The experiment's Standard 1 consists of 0.54 M CuSO₄. What will be the concentration of Standard 2 if it is prepared by combining 10.0 mL of Standard 1 with 10.0 mL deionized water?

2. A student makes a solution for analysis by mixing 5.47 grams of Cu₂SO₄ into 408.2 grams of water. The density of water at the temperature of the lab at the time the solution was made is 0.9926 g/mL.

Calculate the molarity, molality, mole fraction, and mass percent of the copper I sulfate.

• The molarity of the solution is:
• The molality of the solution is:
• The mole fraction of the solution is:
• The mass percent of the solution is:

Answer 1

please post other question separately

- Molarity Equation if Mi Vi Me V2 - where Mie Initial Malaridy (ie. Melwiity of standard 1)=0.544 I VE Initial Volume = 10.0 mL 1 Mo = final Molarity = ? = Cance of standard 2 V = final Volume = 10.0ml + 10.0 ml = 20.0 me e Mr = M, V = 0.54mx 1000 ml = 0.27M - V 20.0 mL