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Safrole is used as a topical antiseptic. Calculate the vapor pressure of a solution prepared by dissolving 0.75 mol of safrole in 950 g of ethanol ( molar mass = 46.07 g/mol). P°ethanol = 50.0 torr at 25°C
Determine the theoretical mole ratio of NaCl to NaHCO3.
For the reaction 3C2H2(g)---> C6H6(l) at 25 C the standard enthalpy change is -631 kj and the standard entropy change is -430 J/K. Calculate the standard free energy change at 25 C
calculate the mass (g) of the excess reactant after thereaction is complete e. calculate the theoretical yeild (g) of 2,2dibromopropane
If 75.0 mL of 0.250 M HNO3 and 75.0 mL of 0.250 M KOH are mixed, what is the molarity of the salt in the resulting solution?
For the reaction 2 HCl + Na2CO3 → 2 NaCl + H2O + CO2 what volume of 0.45 M HCl solution would be needed to produce 2.5 L of CO2 at STP
If 10.7ml of 0.105 M NaOH ir required to reach the first equivalence point of a solution of citric acid (H3C6H5O7), how many milliliters of NaOH are required
Write balanced reactions for the complete combustion of each fuel and use standerd enthalpies of formation to calculate the amount of heat relesed per kilogram pf the fuel.
Write out two net ionic equations for the reaction of hydrochloric acid with carbonate to form bicarbonate and the reaction of hydrochloric acid
How many unpaired electrons are in the ground state electron configuration for a Cobalt atom
Describe the movement of gas particles. Compare the shape and volume of a solid and a gas. Gases are easily compressed. What danger is associated with this property of gases.
what quantity of heat is required to heat 168 g of copper from -12.2 to + 25.6 degrees C?
A solution of NaOH(aq) contains 7.4 g of NaOH(s) per 100.0 mL of solution. Calculate the pH and the pOH of the solution at 25 °C.
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