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What is the value of the mean ionic activity coe?cient for Ce2(SO4)3 when the electromotive force (EMF) for the cell: Ce(s) | Ce2(SO4)3(aq) | Hg2SO4(s) | Hg(l) is 3.208 V at 25 oC and constant pressure of 1 bar. The molality of Ce2(SO4)3 is 0.0170 mol kg?1 . Use the following standard EMF values: for Ce3+| Ce E0 = ?2.483 V and for SO2?4| Hg2SO4 | Hg E0 = 0.6125 V.
A gas sample has an original volume of 680 ml when collected at 720 mm and 28°C. What will be the volume of the gas sample if the pressure increases to 820 mm and the temperature increases to 55°C?
NaHCO3 + HCl I have provided the products for you here. Can you please try to determine the reactants and then balance the full equation.
Explain your answer. Could you still identify what those amino acids were? Explain your answer. What can you not do?
Aromatic Compounds :sample question, Both naphthalene and azulene have 10 pie electrons and are aromatic. Pentalene is apparently antiaromatic and is unstable even at -100 degrees C.
The solubility of barium carbonate,BaCO3, is .0100 g/L . Its molar mass is 197.6 . What is the Ksp of barium carbonate?
Calculate the pressure of a helium sample at -207.3°C and 768 mL if it exerts a pressure of 175 kPa at 25.0°C and 925 mL
An aqueous solution of hydroiodic acid is standardized by titration with a 0.182 M solution of barium hydroxide. If 17.7 mL of base are required to neutralize 21.9 mL of the acid, what is the molarity of the hydroiodic acid solution
Consider all the valence electron pairs of the central atom-both those that are shared in covalent bonds, called bonding pairs, and those that are unshared, called non-bonding pairs or unshared pairs.
Determine the molar concentration of chloride ions after adding 225 ml of 0.625 MKCL with 615 ml of 0.385M MgCl2 if final volume of the solution is 840ml.
Calculate the volume of the gas, in liters, if 1.60mol has a pressure of 0.995atm at a temperature of -4^\circ C.
what mass is grams of potassium chloride is produced if 100. g of potassium chlorate decompose according to the following equation? 2KClO3>>> 2KCl+3O2
When you standardized the Sodium thiosulfate, what molarity of Na2S2O3 did you observe for each of your 3 trials.
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