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Determine the reaction when aqueous solutions of cobalt (II) acetate as well as potassium sulfate are combined. The net ionic equation for this reaction is
The density at 20 degrees celsius of a 0.500 M solution of acetic acid in water in 1.0042 g/mL. what is the molality of the solution? the molar mass of acetic acide, CH3CO2H is 60.05 g
Write a semi-quantitative expression which describes the lattice energy of an ionic crystal. Define and explain all terms used, and explain how they may effect the properties of the crystal.
Fischer projections, isomers, enantiomers and stereocenters, For 2,3-butanediol, there are 3 isomers; 2 are enantiomers, one is not.
Use the collision theory to calculate the theoretical value of the second-order rate constant (in m3 mol-1 s-1) for the gas-phase reaction D2 + Br2 = 2 DBr at 450 K assuming that it is elementary bimolecular. The collision cross-section for this r..
calculate the change in enthalpy when 52.0 g of solid chromium at 25 degrees celcius and 1 atm pressure is oxidized.
The Al2O3 does not react. If the sample residue weighs 2.717 g, what is the mass fraction of Fe2O3 in the original sample?
Consider the reaction of 1-butanol with PCC (pyridinium chlorochromate). Draw only the organic product derived from 1-butanol. If the product is an ion, do not draw the counter ion. If the given reaction has more than one step, give only the final..
Estimated both molecules with spheres whose diameters are 2x the inter nuclear distance for each, which are 1.21 Å nm (O2) and 1.10 Å (N2) respectively. Utilize the exact masses of 16 and 14 amu for O and N, and express the rate constant in the un..
The acid dissociation constant Ka equals 1.26 x 10-2 for HSO4- and is 5.6 x 10-10 for NH4+. Which statement about the following equilibrium is correct? HSO4-(aq) + NH3(aq) = SO4 2-(aq)+ NH4+(aq)
Determine the mass of lithium hydroxide produced when 0.38 g of lithium nitride reacts with water to make Ammonia (NH3) and Lithium hydroxide.
How many grams of Hcl will be produced from the reaction of 50.0mL of a 0.300M CaCl2 according to the reaction:CaCl2 + H3PO4(aq) ----> Ca3(PO4)2 (s) + HCl (aq)
The recommended daily dietary intake of calcium for adult men and pre-menopausal women is 1100 mg/day Calcium citrate , Ca3(C6H5O7)2. What mass of calcium citrate would be needed to provide the recommended daily intake of calcium
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