125.0-ml of 0.183 M HNO3 is diluted with water to 500.0-ml. in a volumetric flask. What...
A penny having a mass of 2.5340 g was dissolved in 20 mL of 8 M HNO3. The resulting solution was transferred to a 100.00-ml volumetric flask and diluted to the mark with water. Then, a sample solution was prepared by transferring 10.00 mL of this solution to a 25.00- ml volumetric flask, adding 2.00 mL of 15 M NH3 and diluting to the mark with waterThe concentration of [Cu(NH3)4]2+ in the sample solution (determined using a Spectro Vis spectrophotometer)...
You diluted a 12.96 ml vinegar sample into a 100 ml volumetric flask with distilled water. You titrated a 25.00 mL aliquot of that solution and determined the concentration of acetic acid to 0.048 M. What was the concentration of acetic in the original sample.
Question 1 2 pts 3.34 mL of an unknown glucose solution was diluted in a 100.00 mL of volumetric flask with distilled water. 10mL of that solution and 4.00 mL of the ferricyanide reagent was placed in a second 100.00 mL volumetric flask and diluted to the mark with distilled water. Spectrophotometric analysis of the glucose/ferricyanide solution showed that the concentration of glucose was 0.070 M. What is the concentration of glucose in the unknown solution?
Question 1 2 pts 3.34 mL of an unknown glucose solution was diluted in a 100.00 mL of volumetric flask with distilled water. 10mL of that solution and 4.00 mL of the ferricyanide reagent was placed in a second 100.00 mL volumetric flask and diluted to the mark with distilled water. Spectrophotometric analysis of the glucose/ferricyanide solution showed that the concentration of glucose was 0.070 M. What is the concentration of glucose in the unknown solution?
0.3926 g of salicylic acid is dissolved in water and made up to 250.0 mL in a volumetric flask. Then, 4.00 mL of this solution is pipetted into a 50.0 mL volumetric flask and diluted with water to the mark. What is the final salicylic acid concentration?
0.3856 g of salicylic acid is dissolved in water and made up to 250.0 mL in a volumetric flask. Then, 3.00 mL of this solution is pipetted into a 50.0 mL volumetric flask and diluted with water to the mark. What is the final salicylic acid concentration?
20.5 g of chromic acid are dissolved in a 250 mL volumetric flask. a) what is the concentration of the solution? b) If 10.1 mL of the solution in a) is diluted with 75.5 mL of water, what is the resulting concentration? c) If 20.5 mL of the chromic acid solution in a) are titrated with 25.0 mL of sodium hydroxide solution, what is the molarity of the NaOH solution? (need balanced equation)
20.5 g of chromic acid are dissolved in a 250 mL volumetric flask. a) what is the concentration of the solution? b) If 10.1 mL of the solution in a) is diluted with 75.5 mL of water, what is the resulting concentration? c) If 20.5 mL of the chromic acid solution in a) are titrated with 25.0 mL of sodium hydroxide solution, what is the molarity of the NaOH solution? (need balanced equation)
If 0.4575 g of CaCO3 were dissolved and diluted in a 300.00 mL volumetric flask (assume the density of the solution is 1.00 g/mL), what would the calcium (Ca2+) concentration be in a) molarity and b)ppm?
A student weighs out 14.6 g of AlBrz, transfers it to a 300 mL volumetric flask, adds enough water to dissolve the solid and then adds water to the 300 mL mark on the neck of the flask. Calculate the concentration (in molarity units) of aluminum bromide in the resulting solution? Calculate the mass, in grams of sodium iodide that must be added to a 250 mL volumetric flask in order to prepare 250 mL of a 0.138 M aqueous...