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the density of aluminum is 2.70 g/cm3 and the density of chronium is 7.19 g/cm3. if equal masses of aluminum and chronium are trasnferred in equal volumes of water in separate graduate cylinders, which graduated cylinder would have the greatest volume change?
The equilibrium concentration of HA will be less than the stoichiometric concentration because some or all of HA ionizes.
A student standardized her I2 solution by preparing a solution of 0.0450 g of ascorbic acid (vitamin C) in a 100 mL volumetric flask. She titrated several 10.00 mL samples of the Vitamin C solution and found an average of 24.95 mL of I2 solution
HCl + NaOH = NaCl + H2O If 200 mL of a .20 M HCl solution is consumed in the above reaction, how many grams of each product would be produced.
Calculate the fraction of atoms in a sample of argon gas at 360. K that have an energy of 14.0 kJ or greater.
How many grams of iron metal do you expect to be produced when 265 grams of an 84.5 percent by mass iron (II) nitrate solution reacts with excess aluminum metal?
An unknown metal sample is subjected to a beam of monochromatic light with a wavelength of 322 nm. Electrons are ejected from the metal surface with a velocity of 5.20 x 105 m/s. What is the threshold frequency of the metal?
a 100.0 ml aliquot of .200 M aqueous potassium hydroxide is mixed with 100.0 ml of .200 M aqueous magnesium nitrate. what mass of precipitate is formed? what is the concentration of each ion remaining in the soulution after the reaction is complet..
If 32.0 g CaC2 are consumed in this reaction, how many moles of H2O are needed?
A reagent bottle is labeled 0.388M Na2SO4. assuming no volume change, how many grams of Na2SO4 (MM=142.05g/mol) needs to be added to 1.50L solution to obtain 0.750M solution of Na2SO4?
What is the best and easy way to determine the frequency (in hz) of the interacting photon. A photon interacts with a ground state electron in a hydrogen atom and is absorbed.
the equilibrium contant kc=49 at 230^0C, for the reaction PCl3 + Cl2= PCL5. If 0.50mol of each of phosphorus trichloride and chlorine are added to a 5.0L reaction vessel.
Take frequencies from sections on absorptions of selected functional groups in the text. If a functional group is not discussed specifically, use frequencies from Which compound will exhibit this absorption?
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