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The Ksp for BaF2 is 2.4 * 10^-5. when 10mL of 0.01M of NaF is mixed with 10mL of 0.01M Ba(NO3)2 will a precipitate form?
Question- Molecular Bromine can add to a conjugated diene giving a dibromo compound with both the 1,2- addition regiochemistry and the 1,4- addition regiochemistry. Draw both products.
The activation energy for the diffusion of car- bon in chromium is 111,000 J/mol. Calculate the diffusion coefficient at 1100 K (827??C), given that D at 1400 K (1127??C) is 6.25 ?? 10??11 m2/s.
Methane and oxygen react to form carbon dioxide and water. What mass of water is formed if 3.2 g of methane reacts with 12.8 g of oxygen to produce 8.8 g of carbon dioxide
equal quantites of the hypothetical strong acid hx weak acid ha and weak base bz are added to seperate beakers of water
How many grams of acetic acid is this. If the mass of analyte is 10.20 grams, what is the mass % of acetic acid in the analyte
A sample of wood since an egyptian mummy case gives a 14-C count of 9.4 counts per minute per gram of carbon. Explain how old is the wood? The initial decay rate of 14-C is 15.3 cpg/g C as well as the half-life is 5730 years
How many milliliters of N2 (measured at 0.740 atm and 100. °C) could be formed if the following reaction occurs? 4NH3(g) + 3O2(g) 2N2(g) + 6H2O(g)
For each species listed, indicate the hybrid orbital set (sp2, sp3d, etc) employed by the central atom
The volume of a sample of pure HCl gas was 121 ml at 27 celsius and 167 mmHg. It was completely dissolved in about 50 ml of water and titrated with an NaOH solution; 24.3ml of the NaOH solution was required to neutralize the HCL.
When 35.0 g of an unknown nonelectrolyte is dissolved in 220.0 g of benzene, the solution boils at 83.2°C. Calculate the molecular weight of the unknown nonelectrolyte. The Kb for benzene = 2.53°C/m. The boiling point of pure benzene is 80.1°C.
Sulfurous acid, H2SO3, is a weak diprotic acid (pKa,1=1.89 and pKa,2=7.21 at 25oC). What is the pH of 0.121 mol/L H2SO3(aq) at 25oC.
A solution containing 27.05 mg of an unknown protein per 22.0 mL solution was found to have an osmotic pressure of 3.10 torr at 12 C. What is the molar mass of the protein
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