Question
If the maltose in Problem 20.61 were replaced by another disaccharide, would you expect the free-energy change for the hydrolysis to be exactly the same or just similar in value? Explain your answer.
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It is asking whether the free-energy change for the hydrolysis of a disaccharide would be the same or just similar if the maltose were replaced by another disaccharide. Show more…
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The structure of the disaccharide maltose appears in Figure $\mathrm{P} 20.61 .$ Hydrolysis of 1 mole of maltose $\left(\Delta G_{f}^{\circ}=-2246.6 \mathrm{kJ} / \mathrm{mol}\right)$ produces 2 moles of glucose $\left(\Delta G_{f}^{\circ}=-1274.4 \mathrm{kJ} / \mathrm{mol}\right)$ $$\text { Maltose }+\mathrm{H}_{2} \mathrm{O} \rightarrow 2 \text { glucose }$$ If the value of $\Delta G_{f}^{\circ}$ for water is $-285.8 \mathrm{kJ} / \mathrm{mol},$ what is the change in free energy of the hydrolysis reaction? (FIGURE CAN'T COPY)
Starch Hydrolysis: How would you expect the results of this exercise to change if you were to add glucose to the medium?
The structure of the disaccharide maltose appears in Figure P20.53. Hydrolysis of 1 mol of maltose $\left(\Delta G_{f}^{\circ}=-2246.6 \mathrm{kJ} / \mathrm{mol}\right)$ produces 2mol of glucose $\left(\Delta G_{f}^{\circ}=-1274.4 \mathrm{kJ} / \mathrm{mol}\right)$ $$\text { Maltose }+\mathrm{H}_{2} \mathrm{O} \rightarrow 2 \text { glucose }$$ If the value of $\Delta G_{f}^{\circ}$ of water is $-285.8 \mathrm{kJ} / \mathrm{mol},$ what is the change in free energy of the hydrolysis reaction? (Check your book to see figure)
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