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Write the net ionic equation to show the formation of a precipitate (insoluble salt) when the following solutions are mixed. Write noreaction if no insoluble salt forms KCl(aq)+Pb(NO3)2(aq)
Calculate the partial pressure of each gas and the total pressure if the temperature of the gas is 21 degrees Celcius.
Both the meta- and para- forms of phenylene diamine are used in the production of Kevlar and Nomex, respectively. Why is a corresponding material with similar properties not made from ortho-phenylene diamine, and why is the ortho-form of the diami..
A gas sample containing 1.65 mol at 25°C exerts a pressure of 413 torr. Some gas is added to the same container, and the temperature is increased to 50.°C.
Calculate the Triangle H degree f for calcium cyanamide.
Using Hard-Soft Acid-Base Theory, classify each of the species in the following equilibrium as hard or soft and indicate whether reactants or products will be favored
How many grams of FeSO4.(NH4)2SO4.6H2O (MW = 392.14) must be dissolved and diluted to 250.0 mL to prepare an aqueous solution that is 10.00 ppm Fe2+
phosphate combines with sodium hydrogen phosphate to yield sodium tripolyphosphate and water
How many grams of the excess reactant remain after the limiting reactant consumed? 1.05 g of NaHCO3 & 1.05 g of H3C6H5O7 react.
calculate the pH and concentration of all species present assuming that the activity coefficients are equal to 1.0 for all species
A) Draw the major organic product obtained when 1,2-dimethylcyclohexane-1,2-diol encounters periodic acid.
Using standard enthalpies of formation, calculate the standard enthalpies of the following reaction: 4HCl(g)+O2(g) -------> 2Cl2(g) + 2H2O(g)
Calculate the heat change of the calorimeter (Qcal) for this process and report it below with the correct number of significant figures
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