The ions in sodium chloride salt that undergoes hydrolysis has to be identified. Concept Introduction: Salt hydrolysis: It is the chemical reaction of a salt with water to produce hydronium ion or hydroxide ion or both. Type of salt Nature of aqueous solution strong acid–strong base neutral strong acid–weak base acidic weak acid–strong base basic weak acid–weak base depends on the salt In water, the negative ion of a weak acid or the positive ion of a weak base will undergo hydrolysis (reaction with water).
The ions in sodium chloride salt that undergoes hydrolysis has to be identified. Concept Introduction: Salt hydrolysis: It is the chemical reaction of a salt with water to produce hydronium ion or hydroxide ion or both. Type of salt Nature of aqueous solution strong acid–strong base neutral strong acid–weak base acidic weak acid–strong base basic weak acid–weak base depends on the salt In water, the negative ion of a weak acid or the positive ion of a weak base will undergo hydrolysis (reaction with water).
Solution Summary: The author explains the chemical reaction of a salt with water to produce hydronium or hydroxide ion or both.
Definition Definition Transformation of a chemical species into another chemical species. A chemical reaction consists of breaking existing bonds and forming new ones by changing the position of electrons. These reactions are best explained using a chemical equation.
Chapter 10, Problem 10.99EP
(a)
Interpretation Introduction
Interpretation:
The ions in sodium chloride salt that undergoes hydrolysis has to be identified.
Concept Introduction:
Salt hydrolysis: It is the chemical reaction of a salt with water to produce hydronium ion or hydroxide ion or both.
Type of salt
Nature of aqueous solution
strong acid–strong base
neutral
strong acid–weak base
acidic
weak acid–strong base
basic
weak acid–weak base
depends on the salt
In water, the negative ion of a weak acid or the positive ion of a weak base will undergo hydrolysis (reaction with water).
(b)
Interpretation Introduction
Interpretation:
The ions in potassium acetate salt that undergoes hydrolysis has to be identified.
Concept Introduction:
Salt hydrolysis: It is the chemical reaction of a salt with water to produce hydronium ion or hydroxide ion or both.
Type of salt
Nature of aqueous solution
strong acid–strong base
neutral
strong acid–weak base
acidic
weak acid–strong base
basic
weak acid–weak base
depends on the salt
In water, the negative ion of a weak acid or the positive ion of a weak base will undergo hydrolysis (reaction with water).
(c)
Interpretation Introduction
Interpretation:
The ions in ammonium bromide salt that undergoes hydrolysis has to be identified.
Concept Introduction:
Salt hydrolysis: It is the chemical reaction of a salt with water to produce hydronium ion or hydroxide ion or both.
Type of salt
Nature of aqueous solution
strong acid–strong base
neutral
strong acid–weak base
acidic
weak acid–strong base
basic
weak acid–weak base
depends on the salt
In water, the negative ion of a weak acid or the positive ion of a weak base will undergo hydrolysis (reaction with water).
(d)
Interpretation Introduction
Interpretation:
The ions in barium nitrate salt that undergoes hydrolysis has to be identified.
Concept Introduction:
Salt hydrolysis: It is the chemical reaction of a salt with water to produce hydronium ion or hydroxide ion or both.
Type of salt
Nature of aqueous solution
strong acid–strong base
neutral
strong acid–weak base
acidic
weak acid–strong base
basic
weak acid–weak base
depends on the salt
In water, the negative ion of a weak acid or the positive ion of a weak base will undergo hydrolysis (reaction with water).
(a) The following synthesis of the molecule shown in the circle has a major problem. What is this problem? (2
pts)
1) HBr
(no peroxides)
2) H-
NaNH2
Br
3) NaNH,
4) CH3Br
5) H2, Pd
(b) Starting with the molecule shown below and any other materials with two carbons or less, write out an
alternate synthesis of the circled molecule. More than one step is needed. Indicate the reagent(s) and the major
product in all the steps in your synthesis. (5 pts)
2024 Fall Term (1) Organic Chemistry 1 (Lec)
CHEM 22204 02[6386] (Hunter College)
(c) Using the same starting material as in part (b) and any other materials win two carpons or less, write out
syntheses of the circled molecules shown below. More than one step is needed in each case. Indicate the
reagent(s) and the major product in all the steps in your synthesis. You may use reactions and products from
your synthesis in part (b). (5 pts)
alt
ons for
Free Response Questions
FRQ 1:
0/5
To spectrophotometrically determine the mass percent of cobalt in an ore containing cobalt and
some inert materials, solutions with known [Co?) are prepared and absorbance of each of the
solutions is measured at the wavelength of optimum absorbance. The data are used to create a
calibration plot, shown below.
0.90-
0.80-
0.70
0.60
0.50
0.40-
0.30
0.20-
0.10-
0.00-
0.005
0.010
Concentration (M)
0.015
A 0.630 g sample of the ore is completely dissolved in concentrated HNO3(aq). The mixture is diluted
with water to a final volume of 50.00 ml. Assume that all the cobalt in the ore sample is converted to
Co2+(aq).
a. What is the [Co2] in the solution if the absorbance of a sample of the solution is 0.74?
13
✗
b. Calculate the number of moles of Co2+(aq) in the 50.00 mL solution.
0.008 mols Co
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