A student uses visible spectrophotometry to determine the concentration of CoCl2(aq) in a sample solution. First the student prepares a set of CoCl2(aq) solutions of known concentration. Then the student uses a spectrophotometer to determine the absorbance of each of the standard solutions at a wavelength of 510nm and constructs a standard curve. Finally, the student determines the absorbance of the sample of unknown concentration. The original solution used to make the solutions for the standard curve was prepared by dissolving 2.60g of CoCl2 (molar mass 130.g/mol) in enough water to make 100.mL of solution. What is the molar concentration of the solution
Answers: 1
Chemistry, 22.06.2019 01:30
Asap! how do you lengthen a pattern piece? (family and consumer science, sewing)
Answers: 1
Chemistry, 22.06.2019 16:30
Correct relationship between molecular formula and empirical formula
Answers: 1
Chemistry, 23.06.2019 03:30
Select the correct lewis structure for fluorine which is group 7a element?
Answers: 1
Chemistry, 23.06.2019 14:40
A1.50-liter sample of dry air in a cylinder exerts a pressure of 3.00 atmospheres at a temperature of 25°c. without changing the temperature, a piston is moved in the cylinder until the pressure in the cylinder is reduced to 1.00 atmospheres. the volume of the gas is
Answers: 3
A student uses visible spectrophotometry to determine the concentration of CoCl2(aq) in a sample sol...
Computers and Technology, 15.07.2019 01:00
English, 15.07.2019 01:00
Physics, 15.07.2019 01:00
Mathematics, 15.07.2019 01:00
Mathematics, 15.07.2019 01:00
Mathematics, 15.07.2019 01:00
English, 15.07.2019 01:00
Mathematics, 15.07.2019 01:00
English, 15.07.2019 01:00
Geography, 15.07.2019 01:00