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What mass of sucrose C12H22O11 must be mixed with 543 grams of H2O to make a solution with an osmotic pressure =8.00 atm at the temperature of 12 degree celsius?
When 1717 J of heat energy is added to 40.0 g of ethanol, C2H6O, the temperature increases by 17.5 °C. Calculate the molar heat capacity of C2H6O.
Calculate the energy in joules and calories required to heat 5.25 g of water from 5.5 oC to 64.8 oC.
Formation of SO3 from the air pollutant SO2 is a key step in the formation of acid rain, according to the following reaction. Use standard enthalpies of formation from Appendix L to calculate the enthalpy change for the reaction.
A sample of argon gas occupies 125 L at 22C and .975 atm. What volume will it occupy at 60C and .825 atm?
The reactions occur in acidic solution. (Use the lowest possible coefficients. Omit states-of-matter in your answer.) (a) MnO4- + H2SO3 ? Mn2+ + SO42-
A solution is made by combining 15.0mL of 18.5M acetic acid with 5.60g of sodium acetate and diluting to a total volume of 1.50 L. Calculate the pH of the solution.
That concentration (g / ml) should be prepared with a substance weight of 200g/mol melocular to give an absorbance of 0.8? Assume that the substance has a molar absorbance coefficient of 16,000 and that the cell has a light path length of 1 cm.
What happens when the base solution was added to the acid solution but was not stirred while temperature measurements were made
Isothermal Pressure Increase Prediction, Estimate the pressure increase needed to decrease isothermally by 1% the volume of
What is the concentration of toluene in air produced by vaporizing 1 ml of liquid toluene into clean air to produce a total volume of 100 liters
A 30 g sample of water at 280 K is mixed with 50 g of water at 330 K. Calculate the final temperature of the mixture assuming no heat loss to the surroundings.
The beginning of the quetsion The value is called Avogadro's number. The term formula unit is a generic phrase that can mean a molecule, atom, ion, or whatever is represented by the chemical formula.
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