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Give a stepwise mechanism showing the base-induced formation of diphenyl-acetylene from meso-stilbene dibromide. Use curved arrows to symbolize the flow of electrons.
If a sample containing 2.01 mL of nitroglycerine (density = 1.592 g/mL) is detonated, how many total moles of gas are produced?
at 1 atmosphere of pressure 25.0g of a compound at its normal boiling point are converted to a gas by the addition
A 0.2678g sample of an unknown acid requires 27.21mL of 0.1164 M NaOH for neutralization to a phenolphthalein endpoint. There are 0.35mL of 0.1012 M HCl used for back-titration. What is the molar mass of the unknown acid
1.201 g of a solid white acid are dissolved in water and completely neutralized by the addition of 28.41 mL of 0.418 M NaOH. Calculate the molar mass of the acid, assuming it to be a monoprotic acid.
In alkene mechanisms, is the formation of an enantiomeric pair of sterioisomers possible for the final product. and Why
The voltage generated by the zinc concentration cell described by, Zn(s)|Zn2 (aq, 0.100 M)||Zn2 (aq, ? M)|Zn(s) is 28.0 mV at 25 °C. Calculate the concentration of the Zn2
If the average molar mass of a sample of soybean oil is 960, how many grams of are needed to saponify 2.5 of the oil
Silver has only two naturally occurring isotopes 107ag with a mass of 106.90509 amu and an abundance of 51.84% and 109 ag with a mass of 108.9047 amu. calculate the atomic mass of silver.
What are the sources of error that could happen in the experiment of ''dumas method for determining the molecular weight of volatile liquids''
A sample of krypton gas at a pressure of 0.621 atm and a temperature of 20.7oC, occupies a volume of 17.2 liters. If the gas is compressed at constant temperature to a volume of 5.62 liters, the pressure of the gas sample will be
Calculate the heat release when 62.0 g of steam at 129 C is converted to water at 50 C. Assume that the specific heat of water is 4.184 J/g x C
a sample of gas occupies a volume of 364 ml at 1.28 atm and 27 oc. calculate the volume of the gas if its temperature
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