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Compute the mass of Ba(CIO3)2 formed from 0.1C of a M HCIO3 solution plus an excess of Ba(OH)2
Explain the difference in acidity between p-cyanoanilinium ion and anilinium ion with words and structures.
An evaluation of R was performed, following the procedure. The barometric pressure was 736torr, the temperature was 295K, and the volume of hydrogen gas collected was 35.6mL. The calculated value of R was 82.1 atm K-1 mol-1. How many grams of magn..
The vapor pressure for water at 20 degrees C is 17.5 mmHg. What is the vapor pressure of water over a solution prepared from 2.00 x 10^2 g of sucrose (C12H22O11) and 3.50 x 10^2 g of water
At 20° C, an aqueous solution that is 24.0% by mass in phosphorus pentachloride has density of 2.1 g/cm3. Assume 100 g total solution. what is the molarity of PCl5 in a solution
Historically, the solid residue that is left after the methylene chloride solution is evaporated has a lower melting point that its literature value, due to impurities. Explain what impurities are present and why.
What volume of 0.240 M K2S solution is required to completely react with 195 mL of 0.155 M Co(NO3)2.
Oxygen, O2, can acquire one or two electrons to give o2-(superoxide ion) or o2^2-(peroxide ion) write the electron configuration for the following in molecular orbital terms: 1. o2 2. o2- 3. o2^2- also compare the o2 molecule on a)magnetic charact..
Heat realsed by combustion of ethyl ether, 1. In earlier times, ethyl ether was commonly used as an anesthetic. It is, however, highly flammable. When 5.0 mL of ethyl ether C4H10 (l), (d=0.714 g/mL) is burned in a bomb calorimeter
the specific heat of ethylene glycol is 2.42 J/g-K. How many J of heat are needed to raise the temperature of 62.0 g of ethylene glycol from 13.1 C to 40.5 C ?
When relatively small amounts of magnesium burns, the fires are extinguished using commercially available dry powder. Why might this fire rekindle days later as someone tries to remove the residue with water?
A bottle of wine contains 14.5% ethanol by volume. The density of ethanol (C2H5OH) is 0.789 g/cm3. Calculate the concentration of ethanol in wine in terms of mass percent and molality.
The Wittig reaction involves coupling between a phosphonium ylide and a carbonyl-containing molecule. If a chemist wants to use the Wittig reaction to synthesize 3-methyl-3-hexene, which reactants should be used
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