please show work for #2 **Exam 4 CHE 110 Fall 2020****2.** A cleaning solution calls for a 15% (v/v) mixture of cleaner in water. How much *cleaner* and *water* are necessary to prepare 4.0 L of the solution?**Diagram/Graph Explanation**The image contains a diagram titled "EXPRESSING HOW MUCH IN SOLUTION". It explains different ways to express concentrations:- **mass %** = (mass of solute / mass of solution) × 100%- **volume %** = (volume of solute / volume of solution) × 100%- **Molarity (M)** = moles of solute / liters of solutionIt also includes conversions for tiny amounts present:- 1 ppm = 1 mg/L- 1 ppb = 1 µg/L - ppm = (mass of solute / mass of solution) × 10⁶ - ppb = (mass of solute / mass of solution) × 10⁹**3.** Zinc and hydrochloric acid react according to the following balanced equation: Zn(s) + 2 HCl(aq) → ZnCl₂(aq) + H₂(g). What volume, in L, of 0.100 M hydrochloric acid will react with 35.5 g of zinc?**4.** A 1.5 M aq. NH₄Cl solution and a 1.25M aq. Li₂SO₄ solution are separated by a semipermeable membrane. Will the water flow toward the NH₄Cl solution, or the Li₂SO₄ solution? How do you know?**5.** We have a saturated solution of CaCl₂. Can we also say that it is a concentrated solution? Explain your answer.

2. Volume % = Volume of soluteVolume of solution×100 Volume of solution = 4 L Volume % = 15 % Volume of cleaner = Volume % * Volume of solution = 0.15 * 4L = 0.6 L Volume of water = volume of solution - volume of cleaner = 4 L - 0.6 L = 3.4 L 3. Molarity (M) = Gram moles of soluteVolume of solution in litres Molarity of HCl = 0.100 M Weight of Zinc = 35.5 g Gram moles of Zinc = Given weight of ZincMolecular weight of zinc = 35.5 65.380.542 moles Volume = gram moles of soluteMolarity =0.5420.100 = 542 L 4. Basis - 1 litre of the solution Molarity = Gram moles of soluteVolume of solution in litres Molarity of NH4Cl = 1.5 M Molecular weight Of NH4Cl = 53.49 g/mol moles of NH4Cl = Molarity * volume of solution = 1.5 * 1 = 1.5 mol Amount of NH4Cl in solution = 1.5 * 53.49 = 80.235 g Density Of solution with NH4Cl = 80.235/ 1L (density= mass/volume) = 80.235 g/L Molarity of Li2SO4 = 1.25 M Moles of Li2SO4 = 1.25 * 1 = 1.25 mol Amount of Li2SO4 = 1.25 * 109.94 = 137.425 g Density of Li2SO4 = 137.425 g/L Density of Water = 1000 g/L Therefore, water will moves towards NH4Cl because its density is lower that Li2SO4. 5. No we cannot say it is a concentrated solution because a concentrated solution has the right amount of solute while a saturated solution has a high amount of solute.