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Why is it particularly important in the experiment "kinetic an thermodynamic control of a reaction" that the semicarbazones be dry before their melting points are determined?
Calculating the rate of disappearance of HCl, The rate of disappearance of HCl was measured for the following reaction
Tris is widely used in a biochemical laboratory. Its acid dissociation constant is 8.32 x 10^-9. You have available at your lab bench a 0.1 M solution of Tris in its protonated form, 0.1 M solution of HCL and NaOH,
Which molecule: water or ethanol is "more" polar? (By "more polar" I mean which molecule will have a larger net dipole moment
Name the alkene(s) with the molecular formula C6H12 that have two methyl branches on different carbons.
What is the equilibrium pH of the solution? Solve by graphical method (draw a log C -pH graph and label the pertinent info, show your charge balance for the equation)
2 FeS + 3 N2 → 2 FeN + 2 SN2 This reaction has a 65.0% yield. How much N2 is consumed if 13.6 g of FeN are produced?
compute the mass of air in an air-filled tire and the also determine the mass of he in a helium-filled tire. suppose
Radiation therapy. An effective treatment for some can cancerous tumors involve irradiation with fast neutrons. The neutrons from one treatment source have an average velocity of 3.2 X10-7 m/s.
hawaiian macadamia nuts provide about 190 cal of energy usable from the digestion of these nuts per 1.0 oz serving. if
A mixture of 3.50 moles of B and 5.25 moles of C in a 20.0 L container is allowed to come to equalibrium. What is the equalibrium concentration of A?
What is the percent yield of a reaction in which 111.6 g phosphorus trichloride reacts with excess water to form 60.8 g HCl and aqueous phosphorous acid (H3PO3)?
Calculate the expected pH values of the buffer systems from the experiments (a, b, c, d) using the Henderson-Hasselbalch equation (pH= pKa + log [A-] ). Use for pKa values: carbonic acid= 6.37 and acetic acid= 4.75.
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