(a)
Interpretation:
For each of the given bifunctional compounds, the cyclic hemiacetal formed when treated with aqueous acid should be drawn.
Concept introduction:
- Hemiacetal are formed for the compound having both hydroxyl group and
aldehyde group in acidic condition. - The oxygen atom in the –OH group of compound attacks the carbonyl group of the same compound, thereby a ring is formed by the carbon atoms and oxygen atom of –OH group with incorporating into the ring.
To draw: the hemiacetal formed for the given molecule when treated with aqueous acid.
(b)
Interpretation:
For each of the given bifunctional compounds, the cyclic hemiacetal formed when treated with aqueous acid should be drawn.
Concept introduction:
- Hemiacetal are formed for the compound having both hydroxyl group and aldehyde group in acidic condition.
- The oxygen atom in the –OH group of compound attacks the carbonyl group of the same compound, thereby a ring is formed by the carbon atoms and oxygen atom of –OH group with incorporating into the ring.
To draw: the hemiacetal formed for the given molecule when treated with aqueous acid.
(c)
Interpretation:
For each of the given bifunctional compounds, the cyclic hemiacetal formed when treated with aqueous acid should be drawn.
Concept introduction:
- Hemiacetal are formed for the compound having both hydroxyl group and aldehyde group in acidic condition.
- The oxygen atom in the –OH group of compound attacks the carbonyl group of the same compound, thereby a ring is formed by the carbon atoms and oxygen atom of –OH group with incorporating into the ring.
To draw: the hemiacetal formed for the given molecule when treated with aqueous acid.
(d)
Interpretation:
For each of the given bifunctional compounds, the cyclic hemiacetal formed when treated with aqueous acid should be drawn.
Concept introduction:
- Hemiacetal are formed for the compound having both hydroxyl group and aldehyde group in acidic condition.
- The oxygen atom in the –OH group of compound attacks the carbonyl group of the same compound, thereby a ring is formed by the carbon atoms and oxygen atom of –OH group with incorporating into the ring.
To draw: the hemiacetal formed for the given molecule when treated with aqueous acid.
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Chapter 24 Solutions
ORGANIC CHEMISTRY LL PRINT UPGRADE
- On the following structure, select all of the atoms that could ACCEPT a hydrogen bond. Ignore possible complications of aromaticity. When selecting be sure to click on the center of the atom.arrow_forwardRank the compounds below from lowest to highest melting point.arrow_forward18 Question (1 point) Draw the line structure form of the given partially condensed structure in the box provided. :ÖH HC HC H2 ΙΩ Н2 CH2 CH3 CH3 partially condensed formarrow_forward
- someone else has already submitted the same question on here and it was the incorrect answer.arrow_forwardThe reaction: 2NO2(g) ⇌ N2O4(g) is an exothermic reaction, ΔH=-58.0 kJ/molrxn at 0°C the KP is 58.If the initial partial pressures of both NO2(g) and N2O4(g) are 2.00 atm:A) Is the reaction at equilibrium? If not, what is the value of Q? B) Which direction will the reaction go to reach equilibrium? C) Use an ICE table to find the equilibrium pressures.arrow_forwardThe dissociation of the weak acid, nitrous acid, HNO2, takes place according to the reaction: HNO2 (aq) ⇌ H+(aq) + NO2–(aq) K=7.2 X 10-4 When 1.00 mole of HNO2 is added to 1.00 L of water, the H+ concentration at equilibrium is 0.0265 M.A) Calculate the value of Q if 1.00 L of water is added? B) How will reaction shift if 1.00 L of water is added?arrow_forward
- Suppose a certain copolymer elastomeric material “styrene-butadiene rubber”) contains styrene ("S") monomers –(C8H8)– and butadiene ("B") monomers –(C4H6)– and that their numerical ratio S:B = 1:8. What is the mass ratio mS:mB of the two monomers in the material? What is the molecular mass M of a macromolecule of this copolymer with degree of polymerization n = 60,000? Data: AC = 12.01 u, AH = 1.008 u.arrow_forwardLab Questions from Lab: Gravimetric Determination of Calcium as CaC2O4•H2O What is the purpose of the methyl red indicator? Why does a color change to yellow tell you that the reaction is complete? Why is the precipitate rinsed with ice-cold water in step 4? Why not room temperature or hot water? Why is it important that the funnels be placed in a desiccator before weighing (steps 1 and 5)?arrow_forwardWhat mass of ethylene glycol, HOCH2CH2OH, Mustbe added to 5.50 kg of water to antifreeze that would work for the car radiator to -10.0 degrees celcius? MM (g/mol): 62.07arrow_forward
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