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A chemistry student obtained a yield of 3.80 g of H2O(l), at room temperature, from the reaction of 1.60 g H2(g) with 10.0 g O2(g). What was her (his) percent yield of this reaction?
How many turns of the TCA cycle are required to use up the carbons from the added acetyl-CoA.- Follow the carbons of Acetyl-CoA through the cycle.
Determine how many moles of the ANION are present in this resulting solution If 4 moles of the ionic compound get dissolved in this reaction?
Evaluate the energy of an electron excited from a hydrogen atom using Bohr's model. Determine the maximum wavelength of energy needed to observe a photoelectric effect for potassium.
Problem- In terms of oxidation-reduction, what happens to the starting chromium ion of Cr+6 when it becomes Cr+3. Is this true for all oxidizing agents
at 25degc k 0.090 for the following reaction.h2og cl2og 2 hoclgcalculate the concentrations of all species at
Problem- What is the freezing point in oC of a solution prepared by dissolving 6.60g of MgCl2 in 110 g of water. The value of Kf for water is 1.86 (?C?kg)/mol, and the van't Hoff factor for MgCl2 is i = 2.7.
Compute the zero point energy for CO2 the symmetric stretch is 1313 cm-1, the asymmetric stretch 2335 cm-1 as well as the doubly degenerate bend is 663 cm-1.
Calculate the average value of the cosine of the angle between the electric field direction and the molecular dipole, , of a collection of molecules each with a dipole moment,µ=1.0 x 10-29 Coulomb meters
Complete the following reactions drawing structural formulas. Write the name of the compounds under them.a. trans-hept-2-ene + Br2 (H2O) --? 2 compounds are possible
For the reaction of iodine atoms to form I2, the experimental rate law is Rate = k[I]^2. What are the units for k if the unit of time is seconds
A sample of neon is collected at 2.7 atm and 12.0 degrees celcius. If has a volume of 2.25 L. What would be the volume of this gas as STP?
To prepare a fertilizer, an engineer dilutes a stock solution of sulfuric acid by adding 24.7 L of 5.25 M acid to enough water to make 500. L. What is the mass of sulfuric acid per milliliter of the diluted solution. 4 significant figures.
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