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from the number of moles of H2O(.1331 mol) and CO2(.27 mol) that were produced what are the total number of moles of C atoms?
B2H6 + 3O2= B2O3+3H2O ;DELTA H=-2035KJ how much heat is released when a mixture of 7.35 g B2H6 and 2.60 g O2 is burned?
calcium chloride solution to give a new solution in which [Cl^-1] is .52 M, what is the concentration of the calcium chloride used to make the new solution?
calculate the volume of 19.4 M sulfuric acid that must be added to water to prepare
Write a balanced chemical equation, including physical state symbols, for the combustion of gaseous methan into gaseous
Find out the amount of energy released by this process of fission of a single U 235 atom and expree your answer in joules?
A weather balloon containing 605 L of He is released near the equator at 1.01 atm and 305 K. It rises to a point where conditions are 0.489 atm
Explain the type of nonrenewable energy resource used and their short-term and long-term effects on the environment
Draw (in increasing energy ordering) 3 different alkenes derived from the dehydration of 1,2-dimethylcyclohexanol
A gas expands and does P-V work on the surroundings equal to 343 J. At the same time, it absorbs 159 J of heat from the surroundings. Calculate the change in energy of the gas.
The optical rotation of a sample composed of only D-lactose is determned [a] abs = 0.99 degrees. [a]d is known to be 52.3 degrees of D-lactose.
Consider 4 moles of a perfect gas with initial volume= 20dm^3, initial temp= 300K, and final volume= 60dm^3. What is the change in entropy for the system, surroundings, and total for the following processes:
What combination of a molecular base (that is a neutral compound, not an ion!) and a salt of the conjugate acid of that molecular base should you select to prepare a buffer solution that would maintain a pH of 9.00? For full credit, explain
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