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?
Expected delivery within 24 Hours
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
1960122
Questions Asked
3,689
Active Tutors
1420182
Questions Answered
Start Excelling in your courses, Ask a tutor for help and get answers for your problems !!
Problem: Which of the following was identified as a characteristic of a viable ethical system by Thiroux and Krasemann?
Respond to the following questions after watching Neil deGrasse Tyson's Life Advice video. 1. Rather than someone looking for meaning in their lives,
Question: What, according to Cotes' Preface, are the distinguishing features of Newton's 'experimental method'?
Rosenstand explained moralizing as the act of making a judgment or pronouncement about what is morally right or wrong without sufficient examination
Indicate whether it contains examples of self-interested thinking, face-saving, or group pressure. Type the words the same way they are show above
Explain Peter Singer's argument. What is his conclusion, and what are the reasons he offers to support it? Do you think his argument is a good one?
Question: We considered the following argument, from Rachel's essay. (1) Some moral beliefs vary from culture to culture.