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Problem- What limitations have you or someone you know encountered in the past in using nonrelational structures (such as in a Microsoft® Excel® or Word file) to store data? What were the advantages?
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It is known that the Co2+-ligand complex obeys the Beer-Lambert Law. Calculate the mass percentage of the cobalt in the original sample.
A solution of a dye was analyzed by spectrophotometry, and the following calibration data were collected. Dye Conc.(Y) (M) Absorbance(X) at 475 nm
A reaction has a rate constant of 7.69 M^-1s^-1 at 219 K and a rate constant of 3.36 *10^4 M^-1s^-1 at 344K. what is the activation energy for this reaction
Calculate the molarity of a NaOH solution if 35.42 mL of this NaOH solution is required to titrate 0.7566 g of KHP, KC6H4(COO-)(COOH).
A compound is 80.0% carbon and 20.0% hydrogen by mass. Assume a 100.- sample of this compound. How many grams of each element are in this sample
A solution is prepared by dissolving 228 g of sucrose (C12H22O11) in 624 g of water. What is the vapor pressure of this solution at 30°C? (The vapor pressure of water is 31.8 mmHg at 30°C.)
A solution is prepared by mixing 3.9 g of FeCl3 with enough water to make 125.0 mL of solution. Calculate the molarity of the solution.
A sample of gas has a volume of 35 liters and a temperature of 27 celsius. With the pressure remaining constant, the volume is raised to 50 liters. What is the new temperature
what is the redox number for nitrogen in a molecule of nitrogen dioxide and iron
A 14.7 g of ice is placed into 324 g of water. Calculate the temperature change in the water upon complete melting of the ice.
what is the molarity of a hydrocholric acid solution if 20.00 ml of hcl is required to neutrilize .424 of sodium
the vapour pressure of pyridine is 50.0 kpa at 365.7 k and the normal boiling point is 388.4 k. what is the enthalpy of
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