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Question- If the product produce when styrene is reacted with sulfuric acid in the presence is 1-phenylethanol.
What role did sulfuric acid play in this reaction?
a. It lowered the energy of activation.
b. It will deprotonate water.
c. It made the reaction less exothermic.
d. It made the reaction more exothermic.
30 g of steam at 100ec condenses and drops to a temperature of 70ec. how much energy is needed to cool the liquid water
When combining with nometallic atoms, metallic atoms generally will... a) lose electrons and form negative ions b)lose electrons and form positive ions c) gain electrons and form negative ions d) gain electrons and form positive ions
A syrup is added to an empty container with a mass of 115.25g. When 0.100 pint of syrup is added, the total mass of the container and syrup is 182.48g.
The pH difference diagonally the membrane of a glass electrode is 5.49. Explain how much voltage is generated by the pH gradient at: 25°C and 37°C
Compute how many milliliters of 0.100 M HCl should be added to 25.0 ml of a 0.200 M solution of NH3 to prepare a buffer that has a pH of 8.80. Kb = 1.76x105
A first order reaction has a half life of 26.4 sec. How long will it take for the concentration of the reactant to fall to 1/8 of its original value
For 100 g mol of a gas mixture of 75 mol % CH4 and 25% H2, calculate the total heat of combustion of the mixture at 298 K and 101.32 kPa, assuming that combustion is complete.
Determine ΔHvap for a compound that has a measured vapor pressure 24.3 torr at 273 K and 135 torr at 325 K: 1. 34 kJ/mol, 2. 13 kJ/mol, 3. 24 kJ/mol, 4. 79 kJ/mol, 5. 41 kJ/mol
determine the energy change that occurs during the combustion of 1 mole of ethene (ethene's connectivity is: H2C=CH2 also written as CH2=CH2).
How do you draw Mg and connect with bonds. Include all lone pairs of electrons and nonbonding electrons and show the charge of the atom.
the structures of the ions Ni2+ (aq) and Fe3+ (aq) as they exist in aqueous solution in octahedral shape.
Prepare 25.0g of aspirin, she is as well told that she should use a 50.0% excess of acetic anhydride as well as expect to get a 65.0 % yield in the reaction. Explain how many grams of salicylic acid as well as of acetic acid should she use
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