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How many joules of heat are needed to completely vaporize 24.40 grams of water at its boiling point? Given ΔHvap = 40.6 kJ/mol
Determine what volume of N 2 is released at 0.915atm of pressure and at the temperature of 25 degree celcius from a tank full of liquid N 2 ? (d=0.808g/mL)
What you need to know about Problems, The Ksp of La(IO3)3 is 1.0×10-11. Using activities, what is the molar solubility of La(IO3)3 in a 0.050 M solution of NaNO3?
Explanation of Ratios, In an unsymmetrical alkene, the boron atom adds predominantly to the least substituted carbon atom. For example, 2-methyl-2-butene gives the products shown below.
What volume of O2 gas (in L), measured at 782 mmHg and 25C is required to completely react with 53.2 g Al
What mass in grams of tryptophan is in 0.25 quart of milk, assuming tryptophan accounts for 2.0% of milk by mass and that the density of milk is 1.04 kg/L.
Write the reactions for the preparation of the diaonuim salt for the coupling of the salt with the sodium salt of 2-napthol. 2. Write the reaction of the sodium salt of para red when treated with 1 M H2SO4. Why does a precipitate form?
How many kilograms of sodium fluoride would be needed to treat a 8.00 x 10^7 gal reservoir
In the haloform reaction, once the first alpha-hydrogen atom is replaced by a halogen atom, each successive hydrogen is more easily substituted
A cool solution of sodium nitrite and a solution of the amine in an ice bath. Moderately concentrated hydrochloric acid is added.
How can diacetylmorphine be ionised in the blood and what will the effects of this be on the molecule in circulation? (I assume that it will be more soluble?)
Given equilibrium pressure, calculate Kp, When heated, ammonium carbonate decomposes as follows. NH4CO2NH2(s) f/r2NH3(g)+CO2(g)
suppose that coal of density 1.5g/cm3 is pure carbon. the combustion of carbon is described by the question C(s)+ 02(g)- CO2 H= -394kJ
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