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Antimony is alloyed with lead to increase the rigidity of components used in the construction of lead storage batteries.
1.335 g of a particular metallic alloy, compounded of only Pb and Sb, can be quantitatively converted into a 1.554-g mixture of the oxides PbO2 and Sb2O4.
What was the percentage (by mass) of antimony in the alloy? %
Liquid nitrogen trichloride is heated in a 2.88-L closed reaction vessel until it decomposed completely to gaseous elements. The resulting mixture exerts a pressure of 766 mmHg at 75°C.
And, of course, ammonia is a base so there will be some NH4+ in solution also. Assume that the concentration of unprotonated NH3 is 0.040 M. What fraction of the cadmium ions are in the form of Cd2+
Assume that you have carried out a radical chlorination reaction on (R)-2- chloropentane and have isolated (in low yield) 2,4-dichloropentane.
Why does "ordered" protein have a smaller ensemble of wsubf than the unfolded protein wsubu and therefore a lower entropy
The amount of energy needed to heat 2.00 g of carbon from 50.0°C to 80.0°C is 42.6 J. The specific heat capacity of this sample of carbon is ?
What is the percent yield of CO2 if the expected theoretical yield is 8.11·10-3 mol? Vapor pressure of water at 20.0 oC is 17.55 mmHg .
a 2.40-g sample of a large biomolecule was dissolved in 13.0 g of carbon tetrachloride. the boiling point of this
Solid benzoic acid, C6H5COOH(s), is often used to determine the heat capacity of a bomb calorimeter, because the constant volume heat of combustion of this compound is known with high precision: qV = 26.434 kJ/g. When a 2.088 g sample of C6H5COOH(..
The laser beams are tightly focused. They briefly (for 0.5s) exert enough pressure to confine 500sodium atoms in a vloume of 1.0x10^-15m^3. The temperature of this gas is 0.00024K, the lowest temperature ever reached for a gas. Compute the root-me..
A plot of ln k vs. 1/T for the decomposition of dinitrogen pentoxide yielded a slope = -7.85 x 105 and a y-intercept = 35.2. whats its activation energy
What Material would be produces in the electrolysis of the following reagent
What is the pH of a solution in which 323 mL of HCl(g), measured at 26.8 degrees Celsius and 1.02 atm, is dissolved in 1.5 L of aqueous solution?
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