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State the formulae to calculate percentage composition and percentage yield.
A tertiary alkyl halide reacts with a weak base and nucleophile. The reaction will proceed via which of the following mechanisms? A) SN1 B) SN2 C) E1 D) E2 E) SN1 and E1
Problem- In the compound CCl4 (tetrachloromethane), carbon has 4 covalent bonds, how many total pairs of nonbonding electrons is in the Lewis structure for that compound
The specific heat of water is 4.18 . Calculate the molar heat capacity of water. What mass of natural gas must you burn to emit 258 of heat
Complete and balance the following equation Write the ionic equation and net ionic equation. Indicate spectator ions and determine if a precipatie would form. (NH4)2C03(aq)+CaCl2
A solution is initially supersaturated with Ca2+ and CO32- ions by rapid addition of calcium carbonate, such that the concentrations of each are 2.10x10-3M. The water's pH is held at 8.5. When equilibrium is finally reached, determine:
the first ionization energy of lead pb is 716 kjmol. if a pb atom is ionized using a photon of ultraviolet radiation
a compound is 40.0 c 6.70 h and 53.3 o by mass. assume that we have a 100 g sample of this compound. the molecular
Does the solubility of the solute increase or decrease if a bottle of soda (solute is CO2 gas) is placed in the refrigerator instead of in the pantry at room at room temperature?
describe one or more simple chemical tests that would distinuish acetaminophen from ibuprofem
Fe(s) + 2HCL(aq)goes to FeCl2(aq) + H2(g) Change in enthalpy is -87.9kJ. How much heat is liberated at constant pressure if .368 g of iron reacts with 18.8mL of 0.568 M HCl?
The annual income is less the operating expense is expected to be $50,000. Annual interest is 6 percent compounded annually. When is the most favorable time to replace the machinery. Compute the present worth of the profit if the machinery is replace..
An unknown compound burned with a yellow, nonsmoky flame and was found to be insoluble in 5% sodium hydroxide solution but soluble in concentrated sulfuric acid.
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