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A concentration cell consists of two H2/H+ half cells. Half cell A has H2 at 0.74 atm bubbling into 0.24 M HCl. Half cell B has H2 at 0.45 atm bubbling into 2.5 M HCl. What is the voltage of the cell?
N2O2 draw valence bond drawings for the resonance forms-clearly labeling the sigma and pi bonds and hybrid orbitals.
Which of the following correctly shows the oxidation numbers for each of the elements in H2PO4?, I2, and Al(OH)4
The half life for the first order decay of 99Mo is 66.02 hours. How long will it take for a sample of 99Mo to decay
A 0.5078g sample of impure nitrobenzene was treated with 1.044g of tin. when the reaction was complete, the residual tin was found to weight 0.338g. Calculate the percentage of nitrobenzene in the sample.
N-Acetylglutamic acid is an important regulatory molecule for the urea cycle. Assuming that N-acetylation of the amino group has no effect on the pKa values for the carboxylates, what is the pI for the N-acetylglutamate.
The overall reaction for the corrosion of iron by oxygen is given by the following reaction. 4Fe (s) + 3O2 (g) ?? 2Fe2O3 (s) Compound ?H° (kJ/mol) S° (J/mol K) Fe (s) 0 27 O2 (g) 0 205 Fe2O3 (s) -826 90 Calculate the equilibrium constant, Keq, for..
Calculate the mass of water produced from 9.47g of methane, CH4, reacts with an excess of oxygen in the following unbalanced reaction. 2C8H18(g)+25O2(g)=16CO2(g)+18H2O(g)
Which of the following pairs of molecules is listed in order of decreasing net dipole moment (from more polar molecule to less polar molecule)
Which of the following could have a meso stereoisomer. a) 1,2-dichloropentane b) 1,3-dichloropentane c) 2,2-dichloropentane d) 2,4-dichloropentane
Write an equation for your preparation of acetyl chloride
Describe three ways to could make and acetic acid/acetate buffer with acetic acid, sodium acetate, deionized water, a solution of hydrochloric acid and a solution of sodium hydroxide.
a piece of metal with a mass of 148 g is placed in a 50 ml graduated cylinder. the water level rises from 20. ml to 35
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