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Explain why does acetate ion not attack the intermediate bromonium ion to give the 5-acetoxy-6-bromo compound in the brominatin of cholesteral?
A solution is 0.20M Ba(OH)2. How many moles of H+ must be added to neutralize 100.0ml of the solution
A 64.3-g piece of aluminum at 94 °C was immersed into 70.0-g water at 25.0 °C. The water temperature rose to 36.4 °C. Calculate the molar heat capacity of the metal.
a gas mixture consists of N2, O2, and Ne where the mole fraction of N2 is .55 and the mole fraction of Ne is .25. If the mixture is at STP in a 5.0 L container, how many molecules of O2 are present.
Calculate the number of moles of BA(OH)2 that will react with 0.600 mol of H3PO4 to form BA(H2PO4)2
Gold sells for $1120/oz. One ounce is equal to 28.35g. The molar mass of gold is 196.97g/mol. 1 moldovian franc contains 0.567g of gold. If 1 franc = $1.42, how many atoms of gold are presents in 0.010 moldovian francs?
briefly discuss interpretations of your observations and results. discuss how your observations illustrated
Liquid helium at 4.20 K has a density of 0.147 g/mL. Suppose that a 1.50 L metal bottle at 110 K contains air at 3.0 atm pressure. If 50.0 mL of liquid helium are added to the bottle
the enthalpy of formation of ethanol c2h5oh is -277.o kjmol at 298.15k. calculate the enthalpy of combustion of one
what is the value of ni for an electron that emits a photon of wavelength 95.04 nm when it returns to grount state in a th H atom
Assume that the heat required for the vaporization of the alcohol comes only from the aluminum block and that the alcohol vaporizes at 25°C.
What is the activity of a 1.00 mg sample of P-32? c) Approximately what mass of 32P will remain in the original 1.00 mg sample after 57 days. d) What is the rate of radioactive decay after 57 days
undergoes a thermal decomposition reaction to form gold metal and oxygen gas. Write a balanced molecular equation that describes this reaction.
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