Calculate the molar concentration of an ethanol solution that was prepared by adding 10mL of 100% ethanol to a 100 mL volumetric flask. The density of ethanol is 0.789
Calculate the molar concentration of an ethanol solution that was prepared by adding 10mL of 100%...
Calculate the concentration of a solution prepared by adding 15.00 mL of 1.98 × 10 − 3 M K M n O 4 from a buret into a 50.00 mL volumetric flask, which is then filled to the 50.00 mL graduation mark with distilled water 1. Calculate the concentration of a solution prepared by adding 15.00 mL of 1.98 x 10-3M KMnO, from a buret into a 50.00 mL volumetric flask, which is then filled to the 50.00 mL graduation...
1. A series of dilute NaCl solutions are prepared starting with an initial stock solution of 0.100 M NaCl. Solution A is prepared by pipeting 10 mL of the stock solution into a 250-mL volumetric flask and diluting to volume. Solution B is prepared by pipeting 25 mL of solution A into a 100-mL volumetric flask and diluting to volume. Solution C is prepared by pipeting 20 mL of solution B into a 500-mL volumetric flask and diluting to volume....
What would the concentration of nitrate be (in M) in a solution prepared by adding 30.0 mL of 0.050 M potassium nitrate with 40.0 mL of a 0.075 M sodium nitrate solution into a volumetric flask that is 250 mL and then filling it up to the 250 mL mark with water and mixing it well?
35) Calculate the concentration of a KCl solution prepared by adding 200 mL of water to 100. mL of 12% KCl solution.
What is the partial molar volume of ethanol (in units of mL/mol) in a solution with water if 168 mL of ethanol is added to 650. mL of water and the volume increases by only 153 mL ? Take the density of ethanol to be 0.789 g/mL.
A solution is made by adding 42.0 mL of concentrated hydrochloric acid (37.3 wt%, density 1.19 g/mL) to some water in a volumetric flask, and then adding water to the mark to make exactly 250 mL of solution. Calculate the concentration of this solution in molarity
A primary standard was prepared with a concentration of 0.0325M Azulene dissolved in ethanol A secondary standard is prepared my pipetting 20 00mL of the primary standard into a flask, and then adding ethanol to the flask until the solution volume is 250.00ml. Determine the concentration of this secondary standard in the flask. CA. 4.06M B. 0.0240M C. 0.0260M D. 4.39M E.0.00650 A particular organic dye has an accepted value for the molar absorption coefficient at 610nm: 4588cmM An experiment...
13. (a) Calculate the molarity of the standard base solution if a 5.1362 g sample is used to prepare 100 ml in the volumetric flask. (Molecular Weight – 121.13g). (b) Calculate the Molar concentration of an acid solution, if 20.74 ml were required to titrate a 10.00-ml aliquot of the solution prepared in 13.
A solution is prepared by adding 0.5630 g of powdered milk into a 2.5E+02 mL volumetric flask and adding 30 mL of 1.0 M KCL and diluting to volume with DI water. The concentration of a milk sample is determined to be 6.420×10-4 M Ca2+ based on linear regression analysis of calcium standard solutions. What is the concentration of Ca2+ in the milk sample (wt/wt %)? [MW Ca = 40.078 g/mole]
A stock solution was prepared by dissolving 0.593 g of pure ASA (molar mass = 180.2 g/mol) with NaOH solution and diluting with water in a 1000 mL volumetric flask. This was followed by pipetting 4.00 mL of the stock solution into flask A and 5.0 mL of the stock into flask B. Flasks A and B were each diluted to 20 mL mark of the volumetric flask. What are the concentrations, in molarity, of ASA in flasks A and...