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a solution of 0.64 grams of adrenaline in 36.0 grams of CCl4 elevates the boiling point by 0.49 celsius. what is the molar mass of adrenaline?
An element has two naturally occurring isotopes. Isotope 1 has a mass of 120.9038 amu and a relative abundance of 57.4%, and isotope 2 has a mass of 122.9042 amu.
The total mass of pure metals produced = 0.4684 grams. compute the mass percent of CuCl2, and AgNO3, FeCl3 in the original mixture.
A gas occupies 1.55 L at 0.80 atm. What pressure would the gas exert if the volume were allowed to increase to 3.50 L?
Nitrosyl bromide, NOBr, is formed in the reaction of nitric oxide, NO, with bromine,Br2 : 2NO(g)+Br(g) 2NOBr(g) The reaction rapidly establishes equilibrium when the reactants are mixed
Draw out the complete structural formula for glutamic acid and glutamine. One has a pI of 5.65 and the other has a pI of 3.22
Calculate the specific rotation of the compound. A sample of 150 mg of an organic compound is dissolved in 7.5 ml of water. The solution is paced in a 20-cm polarimeter tube and the rotation measured in a polarimeter
1 oz of gold (density=19.3 g/ml) can be hammered into a sheet which would cover a 1.00 x 10^2 ft^2 area what is the thickness.
Urea (NH2CONH2) an important nitrogen fertilizer is produced industrially by the reaction 2NH3(g)+CO2(g)--->NH2CONH2(aq)+ H2O(l) given that ?G^degree = -13.6KJ, calculate ?Gat 298K for the following sets of conditions
Determine the partial pressures of each of the reactants CH4 O2 NO in the flask and the partial pressures and of each of the products and the total pressure in the flask
Determine How much sodium hydroxide (in grams) is required to form 546 mL of solution with a pH of 10.00?
Sodium nitrate decomposes upon heating to form sodium nitrite and oxygen gas. This reaction is sometimes used to produce small quantities of oxygen in the lab. How many grams of sodium nitrate must be heated to produce 128g of oxygen?
what is the mass of a rectangular piece of copper 24.4 cm x 11.4 cm x 6.6 cm? The density of copper is 8.92 g/cm^3.
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