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Which of the following alcohols would be most soluble in water?
alcohol methanol By the concept of solubility in alcohol, the alcohol methanol is most soluble in water, this is because the solubility decreases as the chain of the carbon group increases. Ethanol and propanol are miscible that is they form a homogenous mixture when added together.
alcohol methanol
See lessBy the concept of solubility in alcohol, the alcohol methanol is most soluble in water, this is because the solubility decreases as the chain of the carbon group increases. Ethanol and propanol are miscible that is they form a homogenous mixture when added together.
What is the concentration, in moles/liter, of the hydrogen ion, if pH of a solution is 7?
We know that p H = − l o g [ H + ] Given, p H = 7 So, 7 = − l o g [ H + ] l o g [ H + ] = − 7 ⟹ [ H + ] = 10 − 7 Hence, the hydrogen ion concentration is 10 − 7 mol L − 1 .
We know that
p
H
=
−
l
o
g
[
H
+
]
Given,
p
H
=
7
So,
7
=
−
l
o
g
[
H
+
]
l
o
g
[
H
+
]
=
−
7
⟹
[
H
+
]
=
10
−
7
Hence, the hydrogen ion concentration is
See less10
−
7
mol L
−
1
.
Most of the important functional groups in biological molecules contain
Some of the important functional groups in biological molecules include: hydroxyl, methyl, carbonyl, carboxyl, amino, phosphate, and sulfhydryl
Some of the important functional groups in biological molecules include: hydroxyl, methyl, carbonyl, carboxyl, amino, phosphate, and sulfhydryl
See lessA Bronsted acid becomes __________ upon losing a proton.
This reaction highly favors the formation of products, so the reaction arrow is drawn only to the right. In this reaction, water is donating one of its protons to ammonia. After losing a proton, water becomes hydroxide, . Since water is a proton donor in this reaction, it is acting as a Brønsted-LRead more
This reaction highly favors the formation of products, so the reaction arrow is drawn only to the right. In this reaction, water is donating one of its protons to ammonia. After losing a proton, water becomes hydroxide, . Since water is a proton donor in this reaction, it is acting as a Brønsted-Lowry acid.
See lessBuffer solutions
A buffer solution is a solution where the pH does not change significantly on dilution or if an acid or base is added at constant temperature. Its pH changes very little when a small amount of strong acid or base is added to it.
A buffer solution is a solution where the pH does not change significantly on dilution or if an acid or base is added at constant temperature. Its pH changes very little when a small amount of strong acid or base is added to it.
See lessSalt dissolves well in water as water molecules
At the molecular level, salt dissolves in water due to electrical charges and due to the fact that both water and salt compounds are polar, with positive
At the molecular level, salt dissolves in water due to electrical charges and due to the fact that both water and salt compounds are polar, with positive
See lessMolecules in which the atoms are held together by __________ bonds have the strongest chemical linkages.
So, the molecules are held together by option (C)- both A (covalent bond) and B (ionic bond).
So, the molecules are held together by option (C)- both A (covalent bond) and B (ionic bond).
See lessWhich of the following indicates that the pK of an acid is numerically equal to the pH of the solution when the molar concentration of the acid and its conjugate base are equal?
So pH = pKa when the acid and it's conjugate base have equal concentration in the solution. This condition is satisfied when the degree of dissociation, x, of the acid is 0.5.
So pH = pKa when the acid and it’s conjugate base have equal concentration in the solution. This condition is satisfied when the degree of dissociation, x, of the acid is 0.5.
See lessThe reactions of molecules
A Chemical Reaction is a process that occurs when two or more molecules interact to form a new product(s). Compounds that interact to produce new compounds are called reactants whereas the newly formed compounds are called products.
A Chemical Reaction is a process that occurs when two or more molecules interact to form a new product(s). Compounds that interact to produce new compounds are called reactants whereas the newly formed compounds are called products.
See lessThe pH of a solution is determined by
It is the presence of hydronium ion relative to hydroxide that determines a solutions pH. It determine the acidity or alkalinity of a solution.
It is the presence of hydronium ion relative to hydroxide that determines a solutions pH. It determine the acidity or alkalinity of a solution.
See less