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A solution containing sodium fluoride is mixed with one containing calcium nitrate to form a solution that is 0.015M in NaF and 0.010M in Ca(NO3)2. Will a precipitate form in the mixed solution? If so, identify the precipitate.
A professional scientist measures out eaxctly 100.00cm3 of a liquid, and finds that its mass is exactly 80.000g. What is the density (in g/cm3) of the liquid
The decomposition of a compound, A, to form B + C is known to be a first order reaction. If the half-life of the reaction is 1.96 minutes at 65 °C, what is the value in min-1 of the rate constant for the reaction at this temperature
If a 17.5 g sample of iron(III) oxide reacted with 5.00 L of carbon monoxide at 788 torr and 76 degrees celsius until one reactant is completely consumed, how many grams of iron are produced?
What is the pH of the solution that results from mixing 50.0 mL of 0.100 M NaOH with 100.0 mL of 0.100 M propanoic acid
write the two resonance hybrids for the carbocation that would be formed by protonation at C-1 of 2-methyl-1,3-pentadiene. Without doing a calculation
A 2.60-L vessel contained 0.0160 mol of phosphorus trichloride, 0.0115 mol of phosphorus pentachloride, and 0.0903 mol of chlorine at 180°C in an equilibrium mixture. Calculate the value of Kc for the following reaction. PCl3(g) + Cl2(g) PCl5(g)
138g of K and 448g of I react completely to form KI. What mass of KI would have been produced if 138g of potassium and 41g of iodine has been used?
For a given sample of CH_3OH, the enthalpy change during the reaction is 82.1 kJ. How many grams of methane gas are produced
If we wish to prepare a 0.50M solution of NaCl how much water must be added to 1.0 mole of NaCl?
Calculate Delta mixG, Delta mixS, and Delta mixH for mixing 150.0 g of benzene with 200.0 g of toluene at 20 degree C and 1 atm.
Rxn of triphenylphosphine with benzyl bromide produces the corresponding phosphonium salt. Suggest a suitable mechanism for this rxn
The enthalpy of vaporization of water at 373 K and 1 bar is 40.7 kJ/mol and the molar heat capacities are 75.3 J/(mol K) for liquid and 33.6 J/(mol K) for gaseous water. Find the enthalpy of vaporization of water at 273 K and 1 bar.
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