CHEMISTRY+CHEM...(LL)-W/ACCESS >CUSTOM<
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ISBN: 9780357096949
Author: Kotz
Publisher: CENGAGE C
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Chapter 25, Problem 59GQ
Interpretation Introduction
Interpretation: To draw the graph of disintegration per minute as a function of time during a period of one year.
Concept Introduction: Phosphorus-31 occurs in nature as a single isotope of phosphorus. Phosphorus produces phosphorus-32 by the emission of beta particle.
Half-Life: It is defined as the time required to reduce the concentration of reactant present in the reaction to one half of its initial value.
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There is an instrument in Johnson 334 that measures total-reflectance x-ray fluorescence (TXRF) to do elemental analysis (i.e., determine what elements are present in a sample). A researcher is preparing a to measure calcium content in a series of well water samples by TXRF with an internal standard of vanadium (atomic symbol: V). She has prepared a series of standard solutions to ensure a linear instrument response over the expected Ca concentration range of 40-80 ppm. The concentrations of Ca and V (ppm) and the instrument response (peak area, arbitrary units) are shown below. Also included is a sample spectrum. Equation 1 describes the response factor, K, relating the analyte signal (SA) and the standard signal (SIS) to their respective concentrations (CA and CIS).
Ca, ppm
V, ppm
SCa, arb. units
SV, arb. units
20.0
10.0
14375.11
14261.02
40.0
10.0
36182.15
17997.10
60.0
10.0
39275.74
12988.01
80.0
10.0
57530.75
14268.54
100.0…
A mixture of 0.568 M H₂O, 0.438 M Cl₂O, and 0.710 M HClO are enclosed in a vessel at 25 °C.
H₂O(g) + C₁₂O(g) = 2 HOCl(g)
K = 0.0900 at 25°C
с
Calculate the equilibrium concentrations of each gas at 25 °C.
[H₂O]=
[C₁₂O]=
[HOCI]=
M
Σ
M
What units (if any) does the response factor (K) have? Does the response factor (K) depend upon how the concentration is expressed (e.g. molarity, ppm, ppb, etc.)?
Chapter 25 Solutions
CHEMISTRY+CHEM...(LL)-W/ACCESS >CUSTOM<
Ch. 25.2 - Prob. 25.1CYUCh. 25.2 - Prob. 25.2CYUCh. 25.3 - Prob. 25.3CYUCh. 25.3 - Prob. 25.4CYUCh. 25.4 - Prob. 25.5CYUCh. 25.4 - Prob. 25.6CYUCh. 25.4 - Prob. 25.7CYUCh. 25.5 - Prob. 25.8CYUCh. 25.8 - Prob. 25.9CYUCh. 25.8 - Prob. 1.1ACP
Ch. 25.8 - Prob. 1.2ACPCh. 25.8 - Prob. 1.3ACPCh. 25.8 - Calculate the molar mass (atomic weight) of...Ch. 25.8 - Prob. 2.1ACPCh. 25.8 - Prob. 2.2ACPCh. 25.8 - Prob. 2.3ACPCh. 25.8 - Prob. 2.4ACPCh. 25.8 - Prob. 2.5ACPCh. 25.8 - Prob. 2.6ACPCh. 25.8 - Prob. 3.1ACPCh. 25.8 - Prob. 3.2ACPCh. 25.8 - Prob. 3.3ACPCh. 25.8 - Prob. 3.4ACPCh. 25 - Prob. 1PSCh. 25 - Prob. 2PSCh. 25 - Prob. 4PSCh. 25 - Prob. 5PSCh. 25 - Prob. 6PSCh. 25 - Prob. 7PSCh. 25 - Prob. 8PSCh. 25 - Prob. 9PSCh. 25 - Prob. 10PSCh. 25 - Prob. 11PSCh. 25 - Prob. 12PSCh. 25 - Prob. 13PSCh. 25 - Prob. 14PSCh. 25 - Prob. 15PSCh. 25 - Prob. 16PSCh. 25 - Prob. 17PSCh. 25 - Prob. 18PSCh. 25 - Prob. 19PSCh. 25 - Prob. 20PSCh. 25 - Prob. 21PSCh. 25 - Prob. 22PSCh. 25 - Prob. 23PSCh. 25 - Prob. 24PSCh. 25 - Prob. 25PSCh. 25 - Prob. 26PSCh. 25 - Prob. 27PSCh. 25 - Prob. 28PSCh. 25 - Prob. 29PSCh. 25 - Prob. 30PSCh. 25 - Prob. 31PSCh. 25 - Prob. 32PSCh. 25 - Prob. 33PSCh. 25 - Prob. 34PSCh. 25 - Prob. 35PSCh. 25 - Prob. 36PSCh. 25 - Prob. 37PSCh. 25 - Prob. 38PSCh. 25 - Prob. 39PSCh. 25 - Prob. 40PSCh. 25 - Prob. 41PSCh. 25 - Prob. 42PSCh. 25 - Prob. 43PSCh. 25 - Prob. 44PSCh. 25 - Prob. 45PSCh. 25 - Prob. 46PSCh. 25 - Prob. 47PSCh. 25 - Prob. 48PSCh. 25 - Prob. 49PSCh. 25 - Prob. 50PSCh. 25 - Prob. 51PSCh. 25 - Prob. 52PSCh. 25 - Prob. 53PSCh. 25 - Prob. 54PSCh. 25 - Prob. 55PSCh. 25 - Some of the reactions explored by Ernest...Ch. 25 - Prob. 57GQCh. 25 - Prob. 58GQCh. 25 - Prob. 59GQCh. 25 - Prob. 60GQCh. 25 - Prob. 61GQCh. 25 - Prob. 62GQCh. 25 - Prob. 63GQCh. 25 - Prob. 64GQCh. 25 - Prob. 65ILCh. 25 - Prob. 66ILCh. 25 - Prob. 67ILCh. 25 - Prob. 68ILCh. 25 - Prob. 69ILCh. 25 - Prob. 70ILCh. 25 - Prob. 71SCQCh. 25 - Prob. 72SCQCh. 25 - Prob. 73SCQCh. 25 - Prob. 74SCQCh. 25 - Prob. 76SCQCh. 25 - Prob. 77SCQCh. 25 - Prob. 78SCQCh. 25 - Prob. 79SCQ
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- Provide the structure, circle or draw, of the monomeric unit found in the biological polymeric materials given below. HO OH amylose OH OH 행 3 HO cellulose OH OH OH Ho HOarrow_forwardWhat units (if any) does K have? Does K depend upon how the concentration is expressed (e.g. molarity, ppm, ppb, etc.)? in calculating the response factorarrow_forwardDon't used hand raiting and don't used Ai solutionarrow_forward
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