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Identify the compound(s) that act as acid(s) in the following equilibrium:
NH4+ (aq) + CN- (aq) NH3 (aq) + HCN (aq)
How many grams of MgCl2 would be needed to prepare 1.000 L of a solution that is 236 ppm in Mg2+ ions? Note: there is one Mg2+ ion in every MgCl2. Report your answer to the correct number of sig figs.
describe one or more simple chemical tests that would distinuish acetaminophen from ibuprofem
three student chemists measured 50.0 ml of 1.00 m naoh in seperate styrofoam coffee cups calorimeters. brett added 50.0
A pentapeptide was found to contain the amino acids Phe, Gly, Met, Ala, and Ser. N-Terminal analysis yielded the PTH derivative of alanine. Partial hydrolysis of the pentapeptide yielded the dipeptides
Suppose that 25.0g of gold is initially at 27.0 Celsius. What is the final temperature of gold upon absorbing 2.35kJ of heat?
How many moles of CO2 will be produced if 3.119 g of O2 are reacted completely?
Which of the following terms would be used in a description of the mechanism of this reaction: a. tertiary carbanion b. 2-methylpentoxonium ion Torn between the two
can be isolated from the bark of wild cherry trees. Show the reactants that you would use to synthese scopoletinc
Calculate the energy that must be transferred as heat to a van der Waals gas that expands reversibly and isothermally from Vi to Vf.
Determine the pressures of one gram (each) of gaseous H2, He, N2 and Ar, where each sample is contained in a volume of one liter at 0 degrees centigrade. Which sample has the greatest pressure under the conditions stated. Which sample has the leas..
How many moles of (NH4)3PO4 are present in 100.0 mL of 2.50 M (NH4)3PO4?
Medical technicians use deoxyglucose labeled with fluorine-18 to locate tumors using a pet scan. A medical technician injects a patient with a therapeutic dose of fluorine-18.
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