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5. How many milliliters of a 518 mL solution of 2 M K3PO4 must be used to make 302 mL of a solution that has 0.89 moles of K+?
6. A 12 mL sample of a solution of AlBr3 was diluted with water to 42 mL. A 30 mL sample of the dilute solution was found to contain 2.26 M Br-. What was the concentration of AlBr3 in the original undiluted solution?
First, plot the potential energy as a function of the electron's distance from the nucleus, i.e.,V(r) . (Be sure to remember the sign of this potential.)
A gas mixture composed of helium and argon has a density of 0.605g/L at a 741mmHg and 298K .What is the composition of the mixture by volume?
Explain why emission spectrophtometry has the ability to be much more sensitive than absorbance spectroscopy
ch4g h2og----gt cog 3 h2g hydrogen can be prepared by reacting natural gas methane with water as shown above. how
calculate the flow rate of solution B neede to concetrate 300 ibm/hr of 55% H2SO4 (solution A) and the resulting flow rate of solution C
How many moles and how many equivalent of H30+ are present in 50ml of a 0.3N solution of H2SO4
What is the concentration of hydrogen ions in a solution containing 0.321 M HOCN (cyanic acid) and 0.223 M (NaOCN) (sodium cyanate)? The ionization constant of cyanic acid is 3.5 × 10-4.
Here are some data collected on a sample of cesium exposed to various energies of light. Light energy ({\rm eV}) Electron emitted. Electron KE ({\rm eV}) 3.87 no - 3.88 no - 3.89 yes 0 3.90 yes 0.01 3.91 yes 0.02 Part A What is the threshold frequ..
air of one kilogram is allowed to expand reversible in a container behind a piston in such a way that the temperature
Which of the isomers of octane has only two peaks in its 13C NMR? Draw the structure of the alkane. 2. Draw the structure of the C4H9Cl isomer given the following proton NMR data:
Calculate the moles of hydrogen gas produced by the reaction of 0.848 g of aluminum with hydrochloric acid Thanks
This half cell is connected to a SHE half-cell. The measured potential for this cell is 0.476 V at 25 degree C. What is the experimental value of the solubility constant for silver oxalate
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