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Anhydrous barium iodide has a mass of 9.52 grams. What is the name of its hydrate if the hydrated sample has a mass of 10.41 grams?
Compound Y has a solubility of 2.0 g/100 mL in water and 20.0 g/100 mL in ether. What weight of compound Y would be removed from a solution of 1.8 g of Y in 100 mL of water by a single extraction with 100 mL of ether?
1. calculate the number of calories needed to increase the temperature of 50.0 g of copper metal from 21.0 degrees c to
Calculate the max wavelength of light (in nm) required to ionize a single lithium atom, knowing that the ionization energy of lithium is 520 kJ/mol
what mass of limestone is required to remove all the sulfur dioxide formed by the combustion of 9.2 X 10^4 kg of coal that is 0.33 mass % sulfur?
A 0.1019g portion of an aspirin tablet was dissolved in sufficient water to prepare 1.000L of solution. A pipet was used to transfer 10 mL of the solution to a 100 mL volumetric flask. A 2 mL portion of 4 M NaOH (aq) was added to the flask, and th..
How would you figure out the hybridization of the nitrogen in HNO3? I know the steric number is 4 so wouldn't it be sp3
a 4.50-g sample of licl at 25.0 c dissolves in 25.0 ml of water also at 25 c. the final equilibrium temperature of the
Calculate the temperature in Kelvins of 10.2 grams of CO2, an Ideal Gas, trapped in a .0047 L container with a pressure of 300,000 Pa
Calculate the pH of the following solution made from .210 M in pyridime (C5H5N) and .350 M in pyridime chloride (C5H5NHCl). Kb: 1/7 x 10^-9
the difference between nucleophilic centers, nucleophiles, electrophilic centers, and electrophiles. Lastly, tell me how to identify all four of these in a given molecule.
Problem- The given reaction, CO(CH2COOH)2 CO(CH3)2 + 2CO2, follows first-order kinetics. The half-lives were found to be 0.0869 min at 293 K and 0.00692 min at 50 °C. Calculate the activation energy (in kJ/mol) for this reaction
When the 2-methoxyethanol was redistilled, a higher-boiling fraction (bp 162 °C) was also recovered. The mass spectrum of this fraction showed the molecular weight to be 134. The IR and NMR spectra are shown here. Determine the structure of this c..
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