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Calculate the equilibrium concentration of Zn2+(aq) in a solution that is 0.0125 M Zn(NO3)2 and 0.600
M NH3.
Given: Zn2+(aq) + 4 NH3(aq) Zn(NH3)42+(aq)
Kf = 2.9 × 109
The excess EDTA was then back-titrated, requiring 5.00 mL of 0.050 0 M Zn2. What was the concentration of Ni2 in the original solution?
Calculate Ecell for a galvanic cell constructed from a beaker of 0.0025M HCl with a standard hydrogen electrode at 1atm of pressure
Students in the lab place some sodium chloride in the beaker and remassed it to obtain a mass of 73.25 grams using a digital balance. Find the mass of salt in the beaker.
Find the number of unpaired electrons, magnetic moment and ligand field stabilization energy (LFSE).
Discuss what you would observe after elution and visualization of a TLC plate having made the following mistakes in carrying out the analysis. Conceptual Organic chemistry
63mL of a 1.70 M solution is diluted to a volume of 218 mL. A 109mL portion of the solution is diluted using 117mL of water. What is the final concentration?
The vapor pressure of ethanol is 100 mmHg at 34.9oC. Its molar heat of vaporization is 39.3 kJ/mol. What is the vapor pressure of ethanol in mmHg at 57.5 oC?
What is the molarity of urea, CO(NH2)2, if 98.3 mg of the 97.9% pure solid is dissolved in 5.00 ml of aqueous solution?
A solution is prepared by dissolving 0.60g of nicotine in water to make 12mL of solution. The osmotic pressure of the solution is 7.55atm at 25 degrees C
At a certain temperature and pressure 4.2 L of N2 reacts with 6.3 L of O2. If all the N2 and O2 are consumed, what volume of N2O3, at the same temperature and pressure, will be produced?
Serum taken from a patient being treated with lithium for manic-depressive illness was analyzed for lithium concentration. A reading of 276 units was obtained for the intensity of the 671 nm red emission line
Assume the reaction between phosphorus and chlorine gas to produce phosphorus pentachloride goes as far as possible to give the product
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