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Problem- 1) Salicylic acid has the following solubility profile in water: 0.2 g/100 mL@ 20 0C and 7.5 g/100mL @ 100 0C; would water be a good solvent for a single-solvent recrystallization of salicylic acid (explain your reasoning)?
2) Acetyl salicylic acid has the following solubility profile in ethanol: 18 g/100 mL@ 0 0C and 80 g/100mL @ 50 0C; would ethanol be a good solvent for a single-solvent recrystallization of acetylsalicylic acid (explain your reasoning)?
3) Sucrose has the following solubility profile in water: 200 g/100 mL@ 25 0C and 260 g/100mL @ 80 0C; would water be a good solvent for a single-solvent recrystallization of sucrose (explain your reasoning)?
Explain the each and every step in detail for help
Utilize the thermodynamic data in Appendix B to compute the standard cell potential as well as the equilibrium constant at 25°C for the cell reaction in a direct methanol fuel cell
What is the pH of a 0.16 M solution of oxalic acid, H2C2O4. The Ka1,2 values of oxalic acid are 5.6 x 10-2 and 5.4 x 10-5. For a weak polyprotic acid, it is usually OK to assume the hydronium ion concentration, and hence the pH, results predominan..
The double head arrow represents an equilibrium arrow, not a resonance arrow. A reaction mixture, initially contains 11 mol of A and 0 mol of B in a fixed volume of 1 L.
ethanol vapor at 0.5 bar and 78 degrees celcius is compressed isothermally to 2 bar in a reversible process in a closed system a) draw a qualitative PV graph and show the path of the process.
CH[3]OH(g) --->CO(g)+2H Hrxn=90.7 kj/mol rxn; Suppose 1.00 mole of CH[3]OH reacts completely at 1.20 atm and 101 celsius. What is the change in internal energy
If the volume of EDTA needed to reach the endpoint was 26.9 mL in trial one, 27.3 mL in trial two and 26.4 mL in trial three, what is the hardness of the water in ppm + 95% confidence limit
Calculate the frequency of the light emitted when an electron in a hydrogen atom makes each of the following transitions.
Please draw a detailed, arrow-pushing mechanism for the addition of HBr to trans-2-butene. 4. Please draw a potential energy diagram for this reaction
Explain why polar solvents would be expected to increase the rate of the reaction in exercise
If a buffer is made up to be 1.0 M in acetic acid and 1.0 M in sodium acetate predict how much acid will be required to change the pH of 100 mL of the buffer by 0.1 pH units
Problem- What is the pH at the equivalence point of a solution made from 30.00mLs of .150 methanoic acids that has been titrated with 0.100M sodium hydroxide
Complete the columns shown below by showing the correct structure of the species that will present in the respective layer. If none of the two compounds are present in any particular layer then clearly state "none"
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