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The difference in aqueous nucleophilicity between Cl- and Br- is observed in the product distribution for the Sn2 reaction of 1-butanol (n-butyl alcohol) but not for the Sn1 reaction of 2-methyl-2-propanol (tert-butyl alcohol). Briefly explain this in terms of the Sn rate laws.
How much of a 6.0 M sucrose solution should be used to make 79.0 mL of a 0.055 M solution.
What is the molarity of sodium acetate. What is the pH of the solution. Please show the steps. (note pK = 4.76) Use log10 for all calculations.
A voltaic cell consists of Pb/Pb2+a half-cell and a Cu/Cu2+ half-cell at 25 . The initial concentrations of and are 5.10×10?2 and 1.60 , respectively. What are the concentrations of Pb2+ and Cu2+ when the cell potential falls to 0.360 V?
The volume of a mass of gas is 300ml at 25 degree celcius and 685 torr.
A 25.0g sample of nitrogen (N2) has a volume of 50.0L and a pressure of 630.0 mmHg. What is the temperature of the gas.
1.5000 g of diprotic weak acid H2A was dissolved in 100.00 mL volumetric flask. 25.00 mL aliquots of this solution was titrated with a monoprotic strong base NaH (0.0800 M). The titre volume of NaOH was 40.00 mL. Calculate the molecular weight of ..
An infant ibuprofen suspension contains 100 mg/5.0 mL suspension. The recommended dose is 10mg/kg of body weight.
calculate the number of oxygen molecules released when 1g of silver oxide is broken down.
What is the approximate value of the equilibrium constant, Kn, for the neutralization of hydrochloric acid with sodium hydroxide, shown in the equation below
Barium sulfate, BaSO4, is used in medical imaging of the GI tract because it is opaque to X rays. A barium sulfate solution, sometimes called a cocktail, is ingested by the patient
A 200. mL air sample collected at 35°C has a pressure of 550. torr. What pressure will the air exert if it is allowed to expand to 425 mL at 48°C?
The U.S. Environmental Protection Agency set a maximum contaminant level (MCL) for tetrachloroethylene (TCE, C2Cl4) in drinking water of 0.005 ppm (by mass).
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