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Calculate the pH of the solution resulting from the addition of 10.0 mL of 0.10 M NaOH to 50.0 mL of 0.10 HCN solution.
How many mL of 0.145 M NaOH solution will be required to neutralize 5.00 mL of a 0.829 M HCl solution
An airplane is pressurized to 650 mmHg. If air is 21% oxygen, what is the partial pressure of oxygen on the plane?
What is the concentration of H2SO4 present if 42.3 mL of the base is needed to reach the equivalence point?
A solution contains 0.37 M Ni(NO3)2 and 0.37 M Cu(NO3)2. Can the metal ions be separated by slowly adding Na2CO3? Assume that for successful separation 99% of the metal ion must be precipitated before the other metal ion begins to precipitate, and..
Radio waves travel at the speed =3.00 108 m/s(speed of light,). if Saturn is 7.9 108 km from Earth then Determine how many minutes does it take for a radio message to reach Earth from Saturn?
What is the ph of a solution that results from diluting .30 mol acetic acid and .20 mol sodium acetate with water to a volume
Benzoic acid was made in a reaction along with product and benzoic acid needs to be removed using extraction. How can this be done. The solvent is CH2Cl2
Quinine (C20H24N2O2) is the most important alkaloid derived from cinchona bark. It is used as an antimalarial drug.
A gaseous mixture of O2 and Kr has a density of 1.114 g/L at 431 torr and 325 K.What is the mole percent O2 in the mixture.
What is the molarity of the resulting solution when 20.0 mL of a 2.00 M aqueous solution is diluted by the addition of 30.0 mL of water
make a reversible isobaric expansion to state B: (V=44.8L). make a reversible isochoric expansion to C: (p=0.5atm), and finally makes a reversible isothermal compression back to A.
The element lithium has two naturally occurring isotopes, 7Li (isotopic mass 7.0160 amu, abundance 92.5 %) and 6Li (isotopic mass 6.0151 amu, abundance 7.50 %). Calculate the atomic mass of lithium.
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