Why is it important to use only the minimal amt
Why is it important to use only the minimal amt of hot solventneeded to achieve a recrystallization? What would be the effect of using too much solvent while dissolving a solid for recrystallization?
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The steel frame (E=200GPa) shown has a diagonal brace BD with an area of 1920mm^2. Determine the largest allowable load P if the change in length of member BD is not to exceed 1.6 mm.
Two point charges are on the y-axis. A 5.5 µC charge is located at y = 1.15 cm, and a -2.26 µC charge is located at y = -1.30 cm. (a) Find the total electric potential at the origin.
After recrystallization of the 2.0g sample, how much of cmpd X willremain dissolved in the cold solvent (how much is not recoveredafter recrystallization.)
If in vickers hardness test a sample is tested at 30kgf load and length of diagonals measured were 0.497 mm and 0.502 mm then what is the vickers hardness number for that sample?
Two identical point charges (q = +7.25 10-6 C) are fixed at diagonally opposite corners of a square with sides of length 0.485 m. A test charge (q0 = -2.60 10-8 C), with a mass of 7.05 10-8 kg, is released from rest at one of the empty corners of t
Determine the cycle's coefficient of performance. Use constant specific heat at room temperature. Consider problem 1 again but this time the compressor and turbine have isentropic efficiencies of 87% and 92% respectively.
An element consists of isotopes. The abundance of one isotope is 60.1% and its atomic mass is 68.9256 u. The atomic mass of the second isotope is 70.9247 u. What is the average atomic mass of the element?
Suppose that from t = 0 to t = 4.9 s, the elevator ascends at a constant speed of 10 m/s. Its speed is then steadily reduced to zero during the next 3.2 s, so that it is at rest at t = 8.1 s. Describe the reading of the scale during the interval 0
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Explain John Bowlby's Reactive Attachment Disorder and the impact it has on adult relationships; and provide some ideas on the "healing" of this disorder
After reading the case below, discuss the specific events in Leo's life that have contributed to his difficulty with attachment and how those events have impact
Subjective: Chief Complaint: "I'm feeling anxious and depressed, especially with the stress from my daughter's custody situation."
Understanding Group Therapy: Volume I-Outpatient Settings is an adjustment in outpatient group therapy, which is more process-focused and less practical.
Problem: The fifth category on the following slide is recommendations. Would you suggest an online survey for this project?
There are three main purposes. The first main purpose is Exploratory Research. One methodology approach that investigates research questions
Key concepts of the primary suicide theory, providing details and examples where they are needed (for example, to define a concept or to illustrate how concepts