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If equal volumes of 0.1 M HCl and 0.2 M TRIS (base form) are mixed together,
what will be the pH of the resulting solution? (The pKa of TRIS is 8.30.)
The normal boiling point of water is 100 C as well as its molar enthalpy of vaporization is 40.67 kJ/mol. Explain what is the change in entropy in the system in J/k when 39.3 grams of steam at 1 atm condense to a liquid at the normal boiling point
Draw three possible structures for the B3H8- ion. Clearly indicate any three-center bonds. Which structure is most plausible (considering molecular orbital theory)
The relative average molar mass of an element is known to be 151.965 g. Determine the abundance fraction of the isotopes whose fractions are not displayed in the table.
What does it this mean according to the amount of pyrene and TiO2 added , the surface coverage (mol/g) could be caculated so if i have pyrene/TiO2= 50mg how can i caculate the surface coverage. water 50ml. it is sufrace coverage= 2x10^-5 mol/g
Determine the enthalpy change for the combustion of acetylene gas (C2H2) to produce carbon dioxide and water vapor. 2C2H2(g) + 5O2(g)arrow4CO2(g) + 2H2O(g)
75.0 g of ammonium sulfate is placed in a 500.0 ml flask and diluted volume. What is the percent by mass concentration of this solution? (assume the solution density is 1.00 g/ml)
Compute the potential of the silver electrode indicator. Compute the cell potential. KNO3 is simply present as supporting electrolyte.
1.how does cracking pressure percentage change as the maximum pressure setting of the relief valve increases?
If 48.8 g of O2 is mixed with 48.8 g of H2 and the mixture is ignited, what is the maximum mass of water that may be produced
A solution is initially supersaturated with Ca2+ and CO32- ions by rapid addition of calcium carbonate, such that the concentrations of each are 2.10x10-3M. The water's pH is held at 8.5. When equilibrium is finally reached, determine:
A swimming pool is 26.15 yards long and 40.04 feet wide. The pool is filled with water from a hose that has a flow rate of 2.852 gallons/second. How many minutes will it it take to fill the pool to a depth of 4.771 feet
The alcohol (ethyl alcohol/ethanol) content in a 12 oz. bottle of beer is about 5%. The man's weight is 150 lbs and he was drinking over an hour period. State the chemical reaction that took place in the patient's body.
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