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Student worked on a problem and the response indicated that NCl3 was a polar covalent bond. Explain how can that be when N and Cl both have electronegativity levels at 3.0?
Rxn of triphenylphosphine with benzyl bromide produces the corresponding phosphonium salt. Suggest a suitable mechanism for this rxn
consider the reaction 4 fes 3 o2g rarr 2 fe2o3s.if 12.5 g of ironiii oxide rust are pro- duced from 8.74 g of iron how
Describe how you would prepare the following aqueous solution: 230 g of a solution that is 0.60 molal Na2CO3 starting with the solid solute.
The pKa of protonated diethylamine is 10.94. What are the major forms present in a dilute soultion that is equimolar in acetic acid and diethylamine
Calculate the potential of the reaction of Ce4+ and Fe2+ under standard conditions. Using the equation, nFE=RTlnK, calculate the equilibrium constant for this reaction.
Calculate the equilibrium constant Kp for the reaction, {rm SO_2 (g) + 2 H_2S (g) rightleftharpoons 3 S(s) + 2 H_2O(g)} at a temperature of 298 rm K
Calculate the initial pH, pH after addition of 20 mL HCl, pH after addition of 50 mL HCl, pH at the equivalence point, and pH after addition of 120 mL HCl.
Draw the best Lewis structure of CO32-. In this compound, the C atom is attached to three O atoms, and there are no O-O bonds
The density of silver is 10.5g/cm3 what is the volume im cm 3 of an ingot of silver with mass 0.743 kg. If this sample of silver is a cube how long in each edge in cm
How can grains in a silo spontaneously explode? How is it that corn or any other grain can explode in a silo on it's own? How could a natural gas leak just cause corn to explode in a silo?
Suppose you carry out a TLC separation of acetaminophen and phenacetin on silica gel using a nonpolar solvent. Which should have the higher R1 value. why
Standard reduction potentials are given on the next page. (a) Draw a diagram of the electrochemical cell, labeling all electrodes and solutions. (b) What is the pH in the Pt | H+ | H2 half-cell? (c) What is the value of the equilibrium constant fo..
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