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Write net ionic equations for the reaction, if any, that occurs when acqueous solutions of the following are mixed: a) ammonium sulfate and barium nitrate b) lead (II) nitrate and sodium chloride c) sodium phosphate and potassium nitrate d) sodium bromide and rubidium chloride e) copper (III) chloride and sodium hydroxide
Rubidium has two naturally occuring isotopes. The relative abundance of rubidium-85 is 72.17%; its atomic mass is 86.91 amu. Determine the average atomic mass of rubidium.
The number of grams of water required to dissolve a mixture containing 15 g of KNO3 and 3.5 g CuSO4 * 5 H2), assuming that the solubility of one substance is not affected by the presence of another
An alloy, initially weighing 50 grams, contains 90 atomic% silver and 10 atomic% copper. How many grams of copper would have to be added to make the alloy 12 atomic% copper?
sample of benzoic acid is burned in a bomb calorimeter at 25 degrees C, and the temperature increases by 3.72 degrees C. What is the calorimeter constant?
2-methyl-2-butene and 2-methyl-1-butene with Br2 in CH2Cl2
What's a net zero molecular dipole moment. and explain specifically why does [IF2]- have a net zero molecular dipole moment
find the heat, work , energy, enthalpy, and entropy change for this process.
The specific heat capacity of the solution produced was 4.20J/g*Celcius, and final temp reached was 34.91 degrees c. How much heat was produced by the dissolution
The initial concentrations of the three gases are 0.550 M H2S, .550 M H2, and .275 M S2. Determine the equilibrium concentrations of the gases.
Express b in terms of the mass m of each atom and the temperature T of the gas( and other constants), given that the Boltsmann factor in P(cx) pertains to the x- component of the kinetic energy of each atom in the gas.
Calculate the volume (in liters) occupied by 2.08 moles of nitric oxide (NO) at 5.84 atm and 76°C.
A first order decomposition reaction has a half-life of 60yr. What percentage of the original amount is left after 164years
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