Question

plications for Dilution Calculations ③ 150123 Submit Part B When you need to produce a variety of diluted solutions of a sou, you can dilute a series of stock solutions Astock son has a significantly higher concentration of the given solute typically 10 to 10 times higher than those of the diluted solutions). The high concentration allows many diluted solutions to be prepared using minimal amounts of the stock solution What volume of a 6.15 Mstock solution do you need to prepare 500 mL of a 0.0407 M solution of HNO, Express the volume to three significant figures with the appropriate units. View Available Hints) V - Value Units Submit Dilution as a procedure in analysis Wo sometimes purposely dilute solutions if the analyte concentrations are too high to permit an accurate measurement For example, a spectrophotometer can measure the amount of light that passes through a sample solution for wavelengths in the visible and sometimes traviolet range. Based on the dissolved solut's properties, we can quantity that solut's concentration the sout's concentration is too high, a relatively small amount of incident light having the wavelength that corresponds to the solut's absorption behavior will reach the doctor, which resus in an Inaccurate measurement consider the result if you blocked the light with an opaque disc) the solution is d ed, less light is absorbed and the detector in the spectrophotometer can generate more reliable data

Answer 1

use dilution formula

M1*V1 = M2*V2

1---> is for stock solution

2---> is for diluted solution

Given:

M1 = 6.15 M

M2 = 0.0407 M

V2 = 500 mL

use:

M1*V1 = M2*V2

V1 = (M2 * V2) / M1

V1 = (0.0407*500)/6.15

V1 = 3.31 mL

Answer: 3.31 mL