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Subsequent to 46.0 min, 31.0% of a compound has decomposed. Explain what is the half-life of this reaction assuming first-order kinetics?
Calculate %wt of C, H, and O in the compound and find the empirical formula of this compound - What is the weight percent of Cl
A solid mixture contains MgCl2 and NaCl. When 0.5000 g of this solid is dissolved in enough water to form 1.000 L of solution, the osmotic pressure at 25°C
When the body metabolizes glucose water and carbon dioxide are produced according to the following equation. C6H12O6 + 6 O2 --> 6 CO2 + 6 H2O
State Polonium 218 is an alpha emitter with a half life of 3.0 minutes. Explain if a sample contains 55 mg of Po-218 (atomic mass = 218.008965), how many alpha emissions occur in 25.0 minutes. If the Polonium is ingested by a person to define what..
Compute the number of moles of each reactant. Find out the limiting reactant in each of the following three reactions.
nbspa solution of 6.05 m of an acid hx has a density 0.892 gml. molar mass of the acid hx 2.00 gmol. find out the
The substitution reaction of H2S-BH3 with NH3, which generates 2 product molecules, assuming that no species exceeds the octet rule. Given the following information:
A 0.2436 gram sample of an unknown substance was dissolved in 20.0 mL of cyclohexane. The density of cyclohexane is 0.779 g/mL. The freezing-point depression was 2.5 degrees Celsius. Calculate the molar mass of the unknown substance.
The standard enthalpies of formation are methyl hydrazine +54 kJ/mol dinitrogen tetroxide +9.2 kJ/mol water (g) -242 kJ/mol carbon dioxide -394 kJ/mol Find out the amount of heat generated by the shuttle, in kilojoules, if it is carrying 209.0 kg ..
what was the original total concentration of cesium and the corresponding radioactivity in Ci/L?
calcium carbonate fw 100.09 reacts with hydrofluoric acid hf to form caf2caco3s 2 hf ------gt caf2s h2ol
calculate the equilibrium partial pressures of all gases in the reaction and set up the expression for Kp in terms of equilibrium partial pressures but do NOT solve.
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