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What volume of radon will be produced per hour at STP from 1.075 g of 226Ra? (t1/2 = 1599 yr; 1 yr = 8766 h; mass of one 226Ra = 226.025402 amu)?
A liquid unknown was found to be insoluble in water and soluble in cyclohexane and alcohol; the unknown was found to have a boiling point of 58 degrees C at 670mm Hg
A pstient is administered mercury-197 to help evaluate kidney fuction. Mercury-197 has a half - life of 65 hours. what fraction of an initial of an initial does of mercury
the substitution reaction of (2R)-2-bromopentane and CH3O- undergoes substitution with NaOCH3.
Balance the following reaction: Manganese(V) sulfate reacts with chromium(III) sulfate and water to give manganese(II) sulfate, chromium(VI) oxide
Cyclohexane, C6H12, undergoes a molecular rearrangement in the presence of AlCl3 to form methylcyclopentane, CH3C5H9, according to the equation
consider the reaction ag bb lt-gt cgfor which k130. assume that .406 mol of cg is placed in a cylinder that has a
Common Ion Effect: The Ksp of silver iodide is 8.3 x 10^-17. What is the iodide ion concentration of a 1 L saturated solution of AgI to which .2 mole of AgNO3 is added
When a 9.92-g sample of gaseous hydrogen bromide dissolves in 45.5 g of water in a coffee-cup calorimeter the temperature rises from 25.00 oC to 69.79 oC. Calculate H in kJ per mol of HBr for the solution process.
What is the hardness of this mineral? What is the specific gravity of this mineral? show your calculations. Using all these properties, identify this mineral?
At 200 deg C, K = 0.009 for the reaction: NH4SH (s) -> NH3 (g) + H2S (g). A sample of solid NH4SH is placed into a container and allowed to equilibrate. What is the equilibrium partial pressure of ammonia, assuming some solid NH4SH remains
what is delta Urxn for the combustion X; the hardware compnent of the calorimeter has a heat capcity of 3.63kj/*c. the specific heat of water is 4.184j/g*c the MW of X is 56.0 g/mol
How would you write the Sn2 mechanism of sodium chlorophenolate with sodium chloroacetate?
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