Answer:
12.9
Explanation:
From the question given, the concentration of the hydroxide ion is given:
[OH^-] = 1.4 x 10^ -13M
pOH =?
pOH = —Log [OH^-]
pOH = —Log 1.4 x 10^ -13
pOH = 12.9
.2135 mol of Ba(OH)2 are needed to neutralize .427 mol of 2HC2H3O2
When a reactant is removed based on a reaction at equilibrium, the condition favors the backward reaction. This obeys the Le Chatelier's principle which states that any disturbance in the system shall be dealt in a way that the system counters that disturbance.
Answer:
Here’s what I find.
Explanation:
A. Dermatan sulfate and keratan sulfate are examples of glycosaminoglycans (GAGs). TRUE.
They are both long unbranched polymers in which the repeating unit is a disaccharide consisting of a uronic sugar and an N-acetylated amino sugar.
D. Glycosaminoglycans are heteropolysaccharides composed of repeating disaccharide units. TRUE.
A heteropolysaccharide contains two or more monosaccharides, and GAGs contain a hexoseuronic acid and an N-acetylhexosamine.
B. FALSE. GAGs consist of only two residues, but they are the disaccharide units in a polymer chain that has a molecular weight greater
than 2.5 × 10^6 u.
C. FALSE. Dextran is a polysaccharide of glucose.
E. FALSE. The amino groups in the amino sugars are acetylated, so they are acetamide derivatives. Amides (Kb = 10^-15) are much less basic than amines (Kb = 10^-5), so they are not protonated.
