1. A 10. mL portion of a 0.60 M CuSO:(aq) solution is diluted to a volume of 0.10 L. What is the final concentration of this solution? Identify M1, V1, M2, and V2.

2. How many milliliters of 0.60 M KNO3(aq) would need to be added to a flask and diluted to a total volume of 0.100 L to make a 0.10 M solution? Identify M1, V1, M2, and V2.

10.26g of Lioh is dissolved in enough water to make 750.0 ml of total solution. what is the molarity of the solute in the resulting solution   Balanced equation: H2PHO3 + 2LiOH ---> Li2PHO3 + 2 H2O

In order to prepare 350. ml of .35M ammonium sulfate, how many grams of ammonium sulfate must be dissolved?

A 500.0ml solution of concentration 2.00M is diluted to a volume of 1.00L.  What is the final concentration in molarity?

25 mL of a bleach (NaOCl) sample is diluted to 500 mL. An excessive amount of KI is added to the 20 mL solution taken from here and the I2 released is titrated with 35.5 mL of 0.0409 M NaS2O3. Accordingly, calculate the percent by volume of NaOCl in the sample (MaNaOC: 74.4 g/mol) A. %10,50  B. %15,75  C. %5,25  D. %20,85

3NaOH= H3PO4----> Na3PO4+ 3H20 A 41.0ml sample of NaOH solution of unknown concentration requires 24.3 ml of .150M H3PO4 solution to neutralize. A) what is the Molarity of the NaOH solution? Please go step by step and include correct significant figures. Thank you!

In beaker Y, a blue solution was prepared by completely dissolving 10.0 g of a non-volatile blue powdered solid in 100.0 mL of water. A 20.0 mL aliquot from the solution was obtained and placed in beaker Z. Both beakers were left to dry completely, after which the masses of the residue were weighed. Which of the following statements is TRUE? Select one: O a. The color of solution in Y is darker than Z before evaporation. O b. Solutions in Y and Z have the same concentration before evaporation. O c. Residue in beakers Y and Z will have the same mass after evaporation. O d. The density of solution in Y is larger than Z before evaporation. 15

4. Sodium hydroxide solution was standardized against one gram of potassium acid phthalate. First trial used 52.0 ml of the solution while the second trial used 52.4 of the solution to reach the end point. Determine: (a) the standardized concentration of the solution? (b) the percent accuracy if you are going to prepare a one tenth of a molar solution The standardized basic solution was then used in getting the total acidity of a food sample. Ten milliliter of the acidic sample consumed 10.3mL in the first trial then 10.0mL in the second trial to reach endpoint. Determine: (c) the normality of the acidic sample? Compute the total acidity of the food sample assuming that ten grams of sample was dissolved to 25ml of solution if the sample is: (e) Juice (MW, citric acid = 192.4; one mole citric acid reacts with three moles NaOH) If you are a food safety inspector, would the sample pass if (include reason) () The stomach can only withstand 0.39-1.1% citric acid?

2.) 16.52 g of CaSO4 are added to water to prepare 700.0 mL of solution. a.) Calculate the molarity of the solution. b.) Explain how the solution prepared in part a) (your answer from part a) would be diluted in order to prepare 400.0 mL of a 0.100 M CASO, (calculate exact volumes needed)