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Identify the ground state free ion terms with the spin multiplicity for the following cases: Cu2+, V3+, Cr3+, Mn2+, Fe2+, and Ni2+
What is the hydronium ion concentration of a 0.100 M hypo hpyochlorous acid solution with Ka=3.5x10^-8? Given the equation for the dissociation of hypochlorous acid.
What is the equilibrium constant, K, value (ignore units) at 441.3 K for the following reaction ? N2(g) + 3 H2(g) ? 2 NH3(g) [Note (all at 25oC): (1) Standard enthalpies of formation for N2, H2, and NH3
100 moles of water at 70 degrees celsius is brought into thermal contact with 100 moles of a monatomic gas at 20 degrees celsius, and the two substances exchange heat until they reach the same temperature. Assuming that no heat is lost to the surr..
What is the molarity of a solution of 12.0 g of NH4Br in enough H2O to make 240 mL of solution?Answer in units of M.
A copper refinery produces a copper ingot weighing 180lb . If the copper is drawn into wire whose diameter is 8.10 mm , how many feet of copper can be obtained from the ingot? The density of copper is 8.94g/cm3 .
A student determined the molar mass of an unknown non-electrolyte compound by measuring the freezing point depression of an aqueous solution of the compound.
An unknown compound contains only C, H, and O. Combustion of 4.40 g of this compound produced 8.79 g of CO2 and 3.60 g of H2O. What is the empirical formula of the unknown compound. CHO
Using the list of Active Ingredients provided, was there enough HCl added to completely neutralize the Naproxen Sodium? (Show ALL calculations below)
By how much is the oxidizing power of MnO4-/Mn2 couple decreased if the H concentration is deceased
if iodine gas reacts with excess fluorine gas to produce 7.575 g of iodine penta fluoride gas, what was the pressure of the iodinee gas before reacting if it was kept in a 1.5L flask at 298 k
calculate the ph of a 0.070 M sodium acetate CH3COONa and 0.020M acetic acid CH3COOH buffer The ka is 1.7x10^-5
First determine the number of moles of rm Na^+ using the given molarity and volume. Next, use the chemical formula to determine the number of moles of rm Na_3PO_4 needed. Finally, convert moles to grams using the molecular weight of the compound.
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