ORG CHEM LAB (ACT 10- PREPERATION OF ETHYL ALCOHOL) MIDTERMS Flashcards
C2H5OH + O2 —> CO2 + H2O
ETHANOL COMBUSTION RXN
2 test for Ethyl Alcohol; Properties of Ethyl Alcohol
- FLAMMABILITY TEST
- IODOFORM TEST FOR ETOH
What is produced during fermentation of ETOH (set-up formation)?
DILUTE SOL’N OF ETHANOL
> An enzyme that catalyzes the hydrolysis of the SUCROSE into FRUCTOSE/GLUCOSE
β-fructofuronosidase
INVERTASE
2 main enzymes of ETOH fermentation
- INVERTASE
- ZYMASE
Ethyl Alcohol may be prepared from cane sugar by fermentation and ________
YEAST
C12H22O11
SUCROSE
C6H12O6
GLUCOSE / FRUCTOSE
Ethyl Alcohol may be prepared from?
CANE SUGAR
What is trapped product in the set-up formation of ETOH? (CO2 trapped)
CALCIUM HYDROXIDE ; LIMEWATER
Occurs when there is not enough oxygen to allow the fuel to react completely.
INCOMPLETE COMBUSTION
Chemical rxn where water is mostly used to break down the chemical bonds?
HYDROLYSIS
C6H12O6 —> 2 C2H5OH +2CO
ZYMASE
C6H22O11 —>C6H12O6
INVERTASE
Ethyl Alcohol may be prepared from cane sugar by what process?
FERMENTATION
Limewater
CALCIUM HYDROXIDE
___________ should separate if the distillate is ethyl alcohol
YELLOW CRYSTALS OF IODOFORM
C2H5OH
ETHANOL
Prepared from cane sugar by fermentation.
ETHYL ALCOHOL
CH3CH2OH + 4NaOH —> CHI3
ETHANOL IODOFORM RXN
The enzyme which converts the sucrose into glucose/fructose; provides yeast for hydrolysis.
INVERTASE
3 Condition of set-up formation for alcohol fermentation (ETOH fermentation
- ABSENCE OF AIR
- TEMPERATURE AT 37° C
- PRESENCE OF YEAST
> A mixture of enzymes obtained from yeast which catalyze the breakdown of sugars in alcoholic fermentation (ETOH fermentation)
Converts the glucose and fructose to ethyl alcohol and carbon dioxide
ZYMASE
What is the reactant in the set-up formation of ETOH fermentation.
GLUCOSE COL’N + YEAST
