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Assume equal concentration rank these solution by PH : HBrO(aq), Sr(OH)2 (aq), HCl(aq), RbOH(aq), NH3(aq)
A graduated cylinder contains 148 of water. A 17.0 piece of iron (density = 7.86 ) and a 19.0 piece of lead are added. What is the new water level in the cylinder?
Calculate the total volume of gas (at 133 degrees C and 758 mmHg) produced by the complete decomposition of 1.56 kg of ammonium nitrate.
Ammonium Carbonate, NH4CO2, decomposes as follows: NH4CO2NH2(s) -> 2NH3(g) + CO2(g) Starting with only the solid, it is found that at 40C the total gas pressure is .363 atm. Calculate Kp.
The total molarity of acid and conjugate base = 0.100M. A boy adds 4.20 milliliters of a 0.370 M solution to the beaker. Determine how much will the pH change?
What is the maximum number of electrons that can be identified with each of the following sets of quantum numbers? In some cases, the answer may be "none."
a stock solution containing cobalt ions was prepared by dissolving 393 grams of pure cobalt metal in nitric acid and diluting to a final volume of 8.75 L. Determine the concentration of the stock solution.
Calculate the mass of silver chloride in grams required to make 4.4g of silver plating.
Calculate the mass of propylene glycol that must be added to 0.500 kg of water to reduce the vapor pressure by 4.60 torr at 40 degrees celcius.
Nicotine is responsible for the addictive properties of tobacco. Assume Kb1= 1.05 x 10^-6 and Kb2= 1.32 x 10^-11. Determine the pH of a 0.00120 M solution of nicotine.
When are covalent bonds most likely to form? a. between 2 atoms with a high ionization energy b. between 2 with a low ionization energy. c when one atom high and other low d. no correct choice. (I'm leaning towards a.)
The internuclear distance in NaCl(g) is 2.3606 angstrom, whereas in NaCl(s) the shortest Na-Cl distance is 2.814 angstrom. Explain why this should be so when the binding energy is larger in the crystal.
The reaction 2NO (g)-> N2 (g) + O2 (g) has a H = 180.5 kJ. How much heat will be required to produce 44.8 L of NO by the reverse reaction?
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