Determine the concentration of the ion indicated in each solution. ( a ) [K' in 0 .238 M KNO 2 ; ( b ) [ NO 3 ] in 0 .167 M Ca ( INO 2 ) 2, ( c ) (AI 24 in 0 .083 M AI 2 SO 4 3; ( d ) [Na 1 in 0 .209 M Na 2 PO 4 .
Determine the concentration of the ion indicated in each solution. ( a ) [K' in 0 .238 M KNO 2 ; ( b ) [ NO 3 ] in 0 .167 M Ca ( INO 2 ) 2, ( c ) (AI 24 in 0 .083 M AI 2 SO 4 3; ( d ) [Na 1 in 0 .209 M Na 2 PO 4 .
Solution Summary: The author explains how Stoichiometric coefficient ratio in balanced chemical equation can be considered to find individual concentrations.
Determine the concentration of the ion indicated in each solution.
(
a
)
[K' in 0
.238 M KNO
2
;
(
b
)
[
NO
3
]
in 0
.167 M Ca
(
INO
2
)
2,
(
c
)
(AI
24
in 0
.083 M AI
2
SO
4
3;
(
d
)
[Na
1
in 0
.209 M Na
2
PO
4
.
7.
The separate samples of nitric and acetic acids are both titrated with a 0.100 M solution of NaOH(aq).
(Y) 25.0mL of 1.0 M HNO3(aq) (Z) 25.0 mL of 1.0 M CH3COOH(aq)
Determine whether each of the following statements concerning this titration is true or false.
(A) A larger volume of NaOH(aq) is needed to reach the equivalence point in the titration of HNO3
(B) The pH at the equivalence point in the HNO3 titration will be lower than the pH at the equivalence point in the CH3COOH titration
(C) Phenolphthalein would be a suitable indicator for both titrations
Group of answer choices
a.) A) False B) True C) True
b.) A) False B) False C) True
c.) A) False B) True C) False
d.) A) True B)True C)True
2. Using the procedure described in this module, a student determined the percent KHP in an impure sample of KHP. A 3.150-g sample of impure KHP required 41.50 mL of 0.1352M NaOH solution for titration.
(a) Calculate the number of moles of NaOH required for the titration.
(b) Calculate the number of moles of KHP present in the impure sample of KHP.
(c) Calculate the number of grams of KHP present in the impure sample.
(d) Calculate the percent of KHP in the impure sample, using Equation 8.
Equation 8:
percent KHP in the impure sample, % = ( mass of KHP in the sample,g/ mass of sample analyzed, g) (100%)
What is the molar concentration of all the ions in a solution of 0.120M Al2(SO4)3?
Chapter 5 Solutions
General Chemistry: Principles and Modern Applications (11th Edition)
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Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell