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A solid aluminum sphere has a mass of 85 g. Use the density of aluminum (2.7 g/cm3) to find the radius of the aluminum sphere in inches. Provide only numerical value (no units).
Require to apply to neutralize the acidity that concluded from nitrification and determine how much CaCO 3
find the concentration of calcium ions in a solution made by adding 3.50 g of calcium fluoride to 750. ml of 0.125 m
Precipitation reactions. "WE put 50 mg of PbCl2 in 100 ml of water at 25 degrees Celcius. What is the chloride ion concentration of the solution. (Ksp of PbCl2 =1.7 x 10^(-5)
For exemple, the internuclear distance in NaCl(g) is 2.3606 angstrom, whereas in NaCl(s) the shortest Na-Cl distance is 2.814 angstrom
in a hydrogen atom the 2s and 2p orbitals have the same energy. however in a boron atom the 2s electrons have a lower
a 10ml sample of pure orange juice was diluted with 40ml of metaphosphoric acid solution. then 10ml of diluted juice
Explain why electrically neutral objects can become electrically charged even though charge cannot be created or destroyed.
Calculate the percent ionization of 0.085 moles/l of lactic acid in a solution containing 0.050 moles/l sodium lactate
When 33.5 mL of 0.580 M H2SO4 is added to 33.5 mL of 1.16 M KOH in a coffee-cup calorimeter at 23.50°C, the temperature rises to 30.17°C. Calculate ?H of this reaction.
when heated to 350 degree celcius at 0.950atm ammonium nitrate decomposes to produce ammonium nitrate decomposes to
What is the vapor pressure of SiCl4 (in mm Hg) at 23.5 C? The vapor pressure of SiCl4 is 100 mm Hg at 5.4 C and Delta H vap
From these data, and assuming that air obeys Charles's law, determine a value for the absolute zero of temperature in degrees Celsius.
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