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Assume that you have an aqueous solution of an unknown salt. Treatment of the solution with dilute NaOH, Na2SO4, and KCl produces no precipitation. Which of the following cations might the solution contains?a) Ag+b) Cs+c) Ba2+d) NH4+
If a 1.00g sample of a carbon-containing compound is burned in air, 0.75g of CO2(the only carbon-containing product) is produced. What is the mass% carbon in the compound
What is the percent yield of a reaction in which 216 g phosphorus trichloride reacts with excess water to form 134 g HCl and aqueous phosphorus acid (H3PO3)
Calculate the amount of heat required to raise the temperature of 72 g of H2O from 23 degrees celcius to 115 degrees celcius
What mass of carbon dioxide is produced from the complete combustion of 5.20×10-3g of methane?
A compound used in the manufacturing of Saran is 24.7%C, 2.1%H,and 73.2&Cl by mass. The storage of 3.557g of the gaseous compound in a 755mL vessel at 0 degrees C results in pressure of 1.10 atm. What is the molecular formula of the compound
the half life for the first-order decomposition of sulfuryl chloride at 320ordmc is 8.75 h.so2cl2 g rarr so2 g cl2
Lethality of Carbon Monoxide, Sulfur Dioxide and TNT Air monitoring provides the following contaminant concentrations at the approximate center of a fire scene in which acres of automobile tires are burning:
a chemistry student needs of 40 ml chloroform for an experiment. by consulting the crc handbook of chemistry and
The value of Kc for this reaction is 5.0 at 600K. What are the equilibrium and partial pressures of the three gases if a reaction vessel initially contains a mixture of reactants in which Pco =Pcl2 = .215 atm and Pcocl2=0.000 atm
Multiple choice questions in free energy change and What is the free energy change in kJ/mole?
A metal cube of volume 1.55± .05 cm is found to weigh 21.0 ± .5 g. a) What is the density of the metal in kg/m3? (correct significant figures only) density = kg/m3 b) What is the relative uncertainty? ± (dimensionless)
What is the molarity of a solution made by dissolving 2.355g of sulfuric acid in water and diluting to a final volume of 50.0 mL
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