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A stock solution is prepared by adding 10mL of 2.1M Ba(CN)2 to enough water to make 20mL. What is the CN- concentration of 5mL of the stock solution?
After adding the two portions of water into your calorimeter setup and following the procedure outlined in the experiment, you determine the temperature of the mixed portions of water to be 45 oC. What is the heat capacity of the calorimeter
NaBH4 and ethanol are utilized in the reaction to add hydrogen to a carbonyl group and the OH hydrogen comes from the ethanol. The mechanism is a reduction. Demonstrate the mechanism and all steps involved in the reaction.
Provide an explanation for the surprising fact that all trans-1,2,3,4,5,6-hexaisoprpyl cyclohexane, is a stable molecule with all isopropyl groups being axial. Use correct terminology.
a 1.0cm3 sample of lead and a 1.0cm3 of glass. I drop each in a separate beaker of water. How do the volumes of water that are displaced by the samples compare?
A gas is confined to a cylinder under constant atmospheric pressure. When 419 J of heat is added to the gas, it expands and does 103 J of work on the surroundings. What is the value of delta H for this process. And what is the value of delta E for..
At a pressure of O2 of 1.00atm, the mole fraction of dissolved O2 in water is 1.6x10^(-5) at 333 K. What mass of O2 (MM = 32.0) can dissolve in 250 g of water under 0.21atm of O2 pressure at 333 K
conversion of 0.95g of liquid water to steam at 100 clesius requires 2.1 kJ of heat. calculate the molar enthalpy of evaporation of water at 100 celsius
Problem- In building a flow chart for the extraction of a mixture of 1:1 of the follwoing two compounds:1,1'Biphenyl, and cinnamic acid, and diethyl ether, aqueous NAHCO3, aqueous NAOH and queous HCL
A compound is observed to follow first order reaction kinetics with a half-life, t1/2, of 8 s. how long will it take the initial concentration to be reduced to 25%
How many grams and what volume of nitrogen gas will be formed using 81.4 mg of Copper (II) oxide at STP in the following reaction?
1. The given concentration go NaOH was later to be found incorrect and the correct concentration was higher than initially reported. What effect could this have on the mass percent of the vinegar solution?
Calculate the total mass of reactants and products in each of the following equations: a) 2Al(s)+3Cl2(g)--->2AlCl3(s); b) 4HCl(g)+O2(g)--->2Cl2(g)+2H2O(g).
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