To prepare the sample solution, weigh out the necessary mass of NaCl to prepare 50 mL...
you weigh out 7.25 grams of NaCl and dissolve this sample in 50 mL of deionized water, and then you put it in an empty volumetric flask weighing 57.221 g. After the whole thing has dissolved, you add water all the way up to the 100.0 mL mark of the volumetric flask (flask and solution together weighs 162.9145 g.) what’s the mass % of NaCl in this solution?
Calculate the mass I must weigh to prepare a solution of NaCl to a normality of 0.01N in 100 ml
What is the mass of NaCl needed to prepare 250 mL of a 0.60 M NaCl solution?
A 12.0 mL sample of NaCl solution has a mass of 12.65g after the solution is evaporated to dryness, the dry residue has a mass of 4.25g. Calculate the concentration of the solution in m/m% m/v% and M
1. You prepare a NaCl solution by dissolving making 250mL solution out of 0.1409 g of NaCl (MW = 58.443 g/mol). You use this solution to standardize a Hg(NO3)2 solution. The volume of Hg(NO3)2 needed to titrate 10 mL of NaCl is 4.017 mL what is the molarity of the a Hg(NO3)2 solution? Note: Hg2+ + 2 Cl → HgCl2 2. Using the Folin-Wu tungstic acid method you pipet 10 mL of a serum sample and precipitate the protein (Note:...
1. Mass of 50 ml beaker labelled “5 g NaCl” 30.2846 g 2. Mass of 50 ml beaker + ~5.00 g NaCl 35.0111 g 3. Volume of distilled water 20.0 mL 4. Mass of 50 mL beaker + ~5.00 g NaCl + water 54.9981 g 5. Volume of “5 g NaCl” solution 22.2 mL 1. Exact mass of NaCl in beaker labelled “5 g NaC1” 2. Exact mass of solution in beaker labelled “5 g NaCl” g 3. Density of...
250 mL of 2 M NaCl solution was mixed with 50 mL of 0.5 M NaCl solution. What is the concentration of the solution that we will get? If this solution then was diluted with 200 mL of water, what would be the concentration of the final solution?
Practice 1. Suppose we want to prepare four 10.00-mL standard solutions of sodium chloride (NaCI) solution that are 0.10 M, 0.20 M, 0.30 M, and 0.40 M. What glassware would be required to prepare the four standard solutions? a) Fall 2018-CNB b) How many grams of NaCl would we need to measure for each standard solution? Use the table below as a guide StandardConcentration (M) Solution Theoretical Mass of NaCl (g) 0.100 0.200 0.300 4 0.400 c) Suppose you could...
7.28 Initial Volume of NaCl solution in cylinder, (mL) Volume of NaCl solution remaining in cylinder, (mL) Volume of NaCl solution transferred to dish, (mL) Mass of dish, (g) Mass of dish and NaCl solution, (g) Mass of NaCl solution, (g) Mass of dish and dried Naci, (g) Mass of dried NaCl, (g) Density of solution, (g/mL) Percent NaCl (m/m),() Percent NaCl (m/v), (%) Molarity of NaCl, (moles/L) 1.78 5.50 79.25 85.75 6.50 80.95 1.70 1.18 262 309 5.26 Problems...
Suppose you need to prepare 125.5 ml of a 0.256 M aqueous solution of NaCl. What mass of NaCl do you need to use to make the solution? Answer: