B
bebita4u
Guest
I really have no clue where to begin. Any help will be greatly appreciated!!! Thanks
Mass of pure acetylsalicylic acid (ASA) : .509 g
DilutionAbsorbance (a.u.)
2:11 .124
4:11 .282
6:11 .410
8:11 .564
10:11 .825
Mass of tablet : .366 g
Absorbance read on the Spec 20 : .15 a.u.
Concentration of the solution : 1.99E-4 M
Using reverse dilution, calculate the concentration of the tablet in the 100 mL diluted solution. Ans in (M)
Calculate the number of moles in the 100 mL diluted solution.
Calculate the mass (g) in the 100mL diluted solution.
Determine the mass of ASA in 250 mL.
Determine the % of ASA in the tablet.
Determine the number of grains of ASA.
Mass of pure acetylsalicylic acid (ASA) : .509 g
DilutionAbsorbance (a.u.)
2:11 .124
4:11 .282
6:11 .410
8:11 .564
10:11 .825
Mass of tablet : .366 g
Absorbance read on the Spec 20 : .15 a.u.
Concentration of the solution : 1.99E-4 M
Using reverse dilution, calculate the concentration of the tablet in the 100 mL diluted solution. Ans in (M)
Calculate the number of moles in the 100 mL diluted solution.
Calculate the mass (g) in the 100mL diluted solution.
Determine the mass of ASA in 250 mL.
Determine the % of ASA in the tablet.
Determine the number of grains of ASA.