why would you add 10 mL of concentrate to 490 mL of water if  you were instructed to dilute the concentrate 1:50 with water and you were was using a  bottle with a 500 mL capacity

A solution is made by dissolving 0.455 g of PbBr2 in 100 g of H2O at 50C. Based on the data in Table 8-1, should this solution be characterized as a. saturated or unsaturated b. dilute or concentrated

You need to make 150.0 mL of a 0.10 M NaCI solution. You have solid NaCl, and your lab partner has a 2.5 M NaC1 solution. Explain how you each independently make the solution you need.

6-15 Answer true or false. (a) A solute is the substance dissolved in a solvent to form a solution. (b) A solvent is the medium in which a solute is dissolved to form a solution. (c) Some solutions can be separated into their components by filtration. (d) Acid rain is a solution.

Answer this question correctly in the correct format that is needed. A picture of a format is below, please do this on paper with the correct steps and answer.   Molarity Problem: A solution has a volume of 250 mL and contains 0.70 mol NaCl. What is its molarity?

Solubility Curves of Selected Compounds 150 140 130 120 110 100 NANO 90 8 80- * 70 60 NHC 50 40 Náci 30 20 KCIÓ 10 Cez(so, 10 20 30 40 50 60 7O 80 90 100 Temperature (c) The solubility of ammonium chloride at 70 °C is O 34 g/100 g water O 39 g /100 g water O 47 g/ 100 g water O 60 g/100 g water 1 3 4 6 DELL %24 %23 个 COND Grams of solute

Precipitimetry The chloride in a 4.321-g food sample was precipitated through the addition of 50.00 mL of a standard AgNO3 solution (10.00 mL AgNO3 = 11.22 mL KSCN). The precipitate was coated with nitrobenzene and the mixture was diluted to 250.0 mL. A 50.00 mL aliquot was taken from the diluted solution and required 4.56 mL back titration with a %3D standard KSCN solution (22.33 mL KSCN = 0.9758 g AgNO3). %3D Formula Masses: AgNO3 = 169.87; CI = 35.45 Calculate the following: 1. Molar concentration of KSCN solution M %3D 2. Molar concentration of AgNO3 solution M %3D 3. % (w/w) chloride in the original sample =

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You need to make 14 mL of a 350 mM solution of a compound with FW 60.14. How many milligrams of the compound do you need? (Give your answer in units of mg, rounded to the nearest whole mg.)