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Explain what is the molar solubility of Sr3(AsO4)2 as well as the concentration of Sr+2 and AsO4-3 in a saturated solution at 25 C? The Ksp is 1.3x10-18. Illustrate the balanced reaction.
Gallium is a metal with a wide variety of uses. Some of its applications include computer memory chips, light emitting diodes and lasers. Radioactive isotopes of gallium are used to image the human body and locate tumors.
Use the Henderson-Hasselbach equation to calculate the pH of a buffered solution that has a propionic acid CH3CH2CO2H concentration of 0.060 M ad potassium propinate CH3CH2CO2K concentraton of .090 M.
The electron microscope has been widely used to obtain highly magnified images of biological and other types of materials. When an electron is accelerated through a particular potential field,
Calculate the ratios of the different kinds of protons in a compound with an integral ratio of 6 : 4 : 18.4 (going from left to right across the spectrum).
sylvanite is a mineral that contains 28.0 gold by mass. how much sylvanite would you need to dig up to obtain 70.0 g og
What is the chlorine flow rate at the reactor pressure and temperature. (b) If the etching rate of silicon is 0.50 ?/min, and the wafer is 300 mm in diameter, how many moles of silicon are etched per hour
What is the mole fraction of HO2CCH2CHOHCO2H in this solution suppose you dissolve 2.56 grams of malic acid HO2CCH2CHOHCO2H in 50.0 grams of H 2 O.?
calculate the change in ph when 6 ml of 0.1 M HCl is added to 100 ml of a buffer solution that is 0.1 M in NH3 and 0.1 M in NH4Cl. And calculate the change in PH
A 0.484g sample of impure NH4Br is treated with 25.00mL of 0.2050 M NaOH and heated to drive off the NH3. The unreacted NaOH in the reaction mixture after heating required 9.95mL of 0.0525 M H2C2O4 to neutralize.
When a certain liquid of molar mass 46.1 g/mol freezes at -3.65 degrees celsius its density changes from 0.789 g/cm^3 to 0.801 g/cm^3. Its enthalpy of fusion is 8.68 kJ/mol. Estimate the freezing point of the liquid at 100 MPa
calculate the pH a solution that contains 0.800% C5H5N by mass and 0.815% C5H5NHCl by mass
Define one of the advantages and disadvantages of any method of sample preparation for an IR experiment
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