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Cr3+ is used in the tanning of leather. Cr(VI), as dichromate ion ( Cr2O7^2-) is much more toxic that Cr3+. If the excess of Cr3+ is discharged into a waste stream that is saturated with atmospheric oxygen at the pH of 6.0, would there be a significant conversion of Cr3+ to dichromate at equilibrium? Present numerical results to justify your conclusion.
what is the lewis structure of C2H2Br2, also is it polar or non polar, are there any resonance structures or isomers?
In an "anti-bonding" orbital between two atoms, the electrons involved in the bond spend "most of their time" a) in between the two atoms where they act to repel one another
A 355 ml container holds .146g of Ne and an unknown amount of Ar at 35 degrees C and a total pressure of 26 mmHg. Calculate the moles of Ar present
How does the chromatographic seperation ability of thin layer chromatography compare to seperation (resolving) power of column chromatography?
the excess I3- was titrated with 50.00 ml of a 0.02000 M Na2S2O3 solution. What was the mass percent of arsenic trichloride in the original sample?
What is the theoretical yield of bismuth when 393 g of Bi2O3 reacts with excess carbon as shown below? Bi2O3 + C(s) => Bi(s) + CO(g) (not balanced)
Describe the chemistry involved in the current indstrial preparation of adipic acid, specifically listing the major by-product
A solution contains a mixture of pentane and hexane at room temperature. The solution has a vapor pressure of 268 {rm torr}. Pure pentane and hexane have vapor pressures of 425 {rm torr} and 151 {rm torr}, respectively, at room temperature. What i..
Add 28 ml of water and 1.0 ml of concentrated hydrochloric acid to the erlenmeyer flask.), but otherwise followed the above procedure. The student obtained _no product. Explain why?
A reaction of the form aA---->Products gives a plot of ln[A] vs time (in seconds) which is a straight line with a slope of -7.35e-3. Assuming [A]0=0.0100M,
Calculate the pH of the solution after 10.0, 20.0, and 30.0 mL of acid have been added; pKb of (CH3)3N=4.19 at 25 degrees C
what is the net ionic equation potassium hydroxide and iron(III) nitrate.
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