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When spheres of radius r are packed in a body-centered cubic arrangement, they occupy 68.0% of the available volume. Calculate the value of a, the length of the edge of the cube in terms of r.
Please explain the calculation.
Question- What volume (L) of an aqueous solution that is 66.00 % by mass glycerol (C3H8O3) and has a density of 1.17 g/mL must be taken to obtain 2.77 mol of glycerol?
Excitation of electrons Vs Donation electrons in Photosynthesis
If only 4.5 g of Oxygen gas are recovered, what is the percent yield of this reaction?
An aqueous solution is made by placing 0.033 moles of Ba(IO3) in 1.000L of water (K=1.57×10-9ignoring activity) Calculate the solubility of the solution when activity coefficients are used.
What is the scientific method? What is the interrelationship between scientific hypotheses, laws and theories? Why is critical thinking essential to scientific research?
Explain the solubility of AgCl(s) in water at 25 C is 1.33*10^-5 mol/L and its H of solution is 65.7 kj/mol. Explain what is its solubility at 45.6 C
Why is it advisable to run a mixed melting point determination on samples of two different compositions before concluding that the two compounds are identical
Draw the Lewis structures for the following compounds. 1) PBr3 Using VSEPR, what is the shape about the P. 2) N2H2 3) CH3OH Using VSEPR, what is the shape about the C and about the O? 4) CO2 Using VSEPR, what is the shape about the C? 5) C2H4
for a reaction which has the temp of 298k delta g is positive and delta s is 9.0 jmol-k. what can be said about the
Assuming this particle is a single crystal, how many unit cells are lined up across the diameter of the particle? d. Calculate the mass of the particle. e. Approximately how many atoms does this particle contain?
the connection between the number of microstatesw and the entropy s of a system is expressed by the boltzmann
Part A: Barium sulfate, BaSO4, is used in medical imaging of the gastrointestinal tract because it is opaque to X rays. A barium sulfate solution, sometimes called a cocktail, is ingested by the patient, whose stomach and intestines can then be vi..
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