The products of the given reaction and its occurrence to any measurable extent are to be predicted. Concept Introduction: Strong acids ionize completely in aqueous solutions to produce hydronium ions and their conjugate base. The conjugate base produced by a stronger acid is very weak, so that it does not recombine with hydronium ions to form acid. Conjugate bases of stronger acids are relatively more stable than the conjugate bases of weaker acids. Thus, a stable conjugate base will have lower affinity for a proton than an unstable conjugate base. Similarly, conjugate acids that are less stable come from weak bases and tend to lose a proton more easily as compared to stable conjugate acids that are derived fromstrong bases and do not lose their proton easily.
The products of the given reaction and its occurrence to any measurable extent are to be predicted. Concept Introduction: Strong acids ionize completely in aqueous solutions to produce hydronium ions and their conjugate base. The conjugate base produced by a stronger acid is very weak, so that it does not recombine with hydronium ions to form acid. Conjugate bases of stronger acids are relatively more stable than the conjugate bases of weaker acids. Thus, a stable conjugate base will have lower affinity for a proton than an unstable conjugate base. Similarly, conjugate acids that are less stable come from weak bases and tend to lose a proton more easily as compared to stable conjugate acids that are derived fromstrong bases and do not lose their proton easily.
Solution Summary: The author explains that strong acids ionize completely in aqueous solutions to produce hydronium ions and their conjugate base, but the reaction does not proceed to any measurable extent.
The products of the given reaction and its occurrence to any measurable extent are to be predicted.
Concept Introduction:
Strong acids ionize completely in aqueous solutions to produce hydronium ions and their conjugate base. The conjugate base produced by a stronger acid is very weak, so that it does not recombine with hydronium ions to form acid.
Conjugate bases of stronger acids are relatively more stable than the conjugate bases of weaker acids. Thus, a stable conjugate base will have lower affinity for a proton than an unstable conjugate base.
Similarly, conjugate acids that are less stable come from weak bases and tend to lose a proton more easily as compared to stable conjugate acids that are derived fromstrong bases and do not lose their proton easily.
Dr. Mendel asked his BIOL 260 class what their height was and what their
parent's heights were. He plotted that data in the graph below to determine if
height was a heritable trait.
A. Is height a heritable trait? If yes, what is the heritability value? (2 pts)
B. If the phenotypic variation is 30, what is the variation due to additive alleles?
(2 pts)
Offspring Height (Inches)
75
67.5
60
52.5
y = 0.9264x + 4.8519
55
60
65
MidParent Height (Inches)
70
75
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Experiment:
Each team will be provided with 5g of a mixture of acetanilide and salicylic acid. You will divide it into three 1.5 g portions in separate 125 mL Erlenmeyer flasks savıng some for melting point analysis. Dissolve the mixture in each flask in ~60mL of DI water by heating to boiling on a hotplate. Take the flasks off the hotplate once you have a clear solution and let them stand on the bench top for 5 mins and then allow them to cool as described below.
Sample A-Let the first sample cool slowly to room temperature by letting it stand on your lab bench, with occasional stirring to promote crystallization.
Sample B-Cool the second sample 1n a tap-water bath to 10-15 °C
Sample C-Cool the third sample in an ice-bath to 0-2 °C
Results:
weight after recrystalization and melting point temp.
A=0.624g,102-115°
B=0.765g, 80-105°
C=1.135g, 77-108
What is the percent yield of A,B, and C.