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Calculate the free energy change for the combustion of methane at 250oC. Assume that all reactants and products are gases and that the pressures of the various gases of interest are: methane = 0.56 atm, oxygen = 0.45 atm, carbon dioxide = 2.10 atm, water = 3.40 atm
If equal volumes of BaCl2(aq) and NaF(aq) solutions are mixed together, which will NOT give a precipitate (Ksp of BaF2 = 1.7 x 10-7)?
The atomic mass of boron is 10.81 g/mol. The two naturally occuring isotopes are B-10 with a mass of 10.0129 amu and B-11 with a mass of 11.0093 amu. Determine the percent of naturally occuring B-10.
The standard state of sulfur is solid rhombic sulfur. Use the appropriate standard heats of formation given in Appendix II in the textbook to find the average bond energy of the S=0 in SO2.
how many grams of vinegar are required to react completely with 25.0g of baking soda.
which compartment (A or B) will increase in volume for each of the following pairs of solutions separated by a semipermiable membranes: a) A.20%(m/v) starch B.10%(m/v) starch. b) A.10%(m/v) albumin B.2%(m/v) albumin. c) A. .5%(m/v) sucrose B. 5%(m..
A sample of oxygen is collected over water at a total pressure of 690.7 mmHg at 19°C. The vapor pressure of water at 19°C is 16.5 mmHg. What is the partial pressure of O2
When 150g of water at a temperature of 22.5C is mixed with 65.5g of water of an unknown temperature. The final temperature of the resulting mixture is 47.9C. What is the initial temperature of the second sample
What is the molecular formula of the compound? , draw Structures for the molecule (1 bonus mark for every acceptable structure, up to a maximum of 5 bonus marks).
using a solution that is prepared by mixing 11.5 g of c6h12o6 glucoseof mw 180 amu in 279 ml of solution then determine
A solution is prepared by dissolving 1.00 g of Compound B in enough water to create 250.0mL of solution. What is the molarity of Compound B in this solution?
What mass of LP gas is necessary to heat 1.3 of water from room temperature (25.0 ) to boiling (100.0 )? Assume that during heating, 16% of the heat emitted by the LP gas combustion goes to heat the water.
Find the voltage developed by a cell consisting of Tl metal dipping in an aqueous solution that is 0.32 M in Tl+, connected by a porous bridge to a 0.69 M aqueous solution of HCl in contact with a Pt electrode over which H2 gas is bubbling at p = ..
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