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What is the pH of the solution at the cathode if E^o cell = -0.362V for the following electrochemical cell at 25 degrees C? Pt | Hw(g,1.0 atm) | H+(aq, 1.00M) || H+(aq) | H2(g,1.0atm) | Pt
A primary sedimentation tank has 140 mg/L of BOD in its effluent. The effluent flows into an activated sludge process at a rate of 4.8 MGD. The treatment must reduce the BOD by 125 mg/L so that it can meet an effluent requirement of 15 mg/L. How m..
A student attempted to identify an unknown compound by the method used in this experiment. she found that when she heated a sample weighing 0.4826 g, the mass barely changed, dropping to 0.4855 g.
What is the molar solubility of CaF2 in 0.10 M NaF solution at 25°C? The Ksp for CaF2 is 1.5 x 10^-10
compound has decomposed. What is the half-life of this reaction assuming first-order kinetics?
a monoprotic acid with a solution of sodium hydroxide of known concentration, what quantities are equal at the equivalence point
explain why water is not plotted on the delta t versus molecular mass graph in the analysis .(hint:what makes water different from the other 3 solvents?
None of the desired ether was obtained. What product was formed and why did this route to the ether fail? Suggest a different substitution reaction that should yield the desired product.
Since the periodic table currently has 7 periods (and will have 7 until element 119, which will be the first element of the 8th period, is "discovered"), consider the electron shell with principle quantum number, n = 7.
calculate the mass of a sample of gold that occupies 5.0 x 10 (exponent -3) cm cubed. the denisty of gold is 19.3 g/cm cubed.
Suppose that 2.00mL of isopently alcohol was reacted with excess acetic acid and that 2.00g of isopentyl acetate was obtained as product. Calculate the percentage yield.
Calculate the feed ratio of adipic acid and hexamethylene diamine that should be employed to obtain a polyamide of approximately 15,000 molecular weight at 99.5% conversion.
Draw the neutral major organic product pentanoic anhydride & 2 equivalents of dimethyl amine [HN(CH3)2] given that one equivalent of amine acts as the nucleophile
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