Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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Chapter 4, Problem 36E
Interpretation Introduction
Interpretation: The largest number of ions in the solutions of strong electrolytes has to be calculated from the given data.
Concept introduction:
The neutralization of acids and bases results in the formation of salts. The concentration of solution can be defined in terms of molarity as moles of solute per volume of solution in litres. It is given by the equation,
From the formula of molarity, the moles of solute can be calculated by,
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125 mM that yielded peak heights of Aa =
9 1-(a)A sample solution was examined under XRF to quantify the analyte Ce³+. Find the response factor F, when standardized concentration of analyte [Ce³+]A =
concentration of internal standard S i.e. [In³*]s =
151
mM was spiked with standardized
1600 and As = 3015
respectively?
11
12
(i)Define F,
F =
Aa
As
[A]
[S]
+
X
13
(*Define with variables)
4000
14
15
(ii)Calculate F,
F =
numeral
(You will use the F value in part 1-(b) below)
As
16
(*Calculate with numerals)
17
18
1-(b)To determine the unknown conc of analyte [Ce³+], a volume of 15 mL of internal standard S having a concentration [In³+]s =
0.264
M
19
20
was added to 45 mL of unknown, and the mixture was diluted to 100 mL in a volumetric flask. XRF analysis yielded a spectrum, Figure-1, where peak
heights A and As are…
All structural types of Boron hydrides exhibit B-B, B-H-B and B-H bonds. Correct?
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