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Given a mixture of gases that contains .55 moles N2 and .20 moles CO2, what is the partial pressures of each gas if the total pressure of the mixture is 1.32 atm?
Once ready, he put a bit of sand on top. He loaded about 1 gram of product that had been dissolved in 1 ml of ethyl acetate.
a volume of 80.0 ml of h2o is initially at room temperature 22.0 c. a chilled steel rod at 2.00 c is placed in the
The enthalpy of neutralization for the reaction of a strong acid with a strong base is -56 kJ/mol of water produced. How much energy will be released when 155.0 mL of 0.400 M HCl is mixed with 157.0 mL of 0.500 M NaOH
A solution is prepared by mixing 3.9 g of FeCl3 with enough water to make 125.0 mL of solution. Calculate the molarity of the solution.
The partial pressure of O2 in the exhaust is 10.38 mmHg and the partial pressure of CO2 in the exhaust is 88.03 mmHg. What is the mole fraction of propane in the fuel stream
a piston-cylinder contains h2o at 15 bar and a temperature of 400 degc. the water is then cooled at constant pressure
The vapor pressure of liquid chloroform, CHCl3, is 400.0 torr at 24.1°C and 100.0 torr at -6.3°C. What is Hvap of chloroform?
A 6.55 g sample of aniline (C6H5NH2, molar mass = 93.13 g/mol) was combusted in a bomb calorimeter. If the temperature rose by 32.9°C, use the information below to determine the heat capacity of the calorimeter.
What is the reaction order with respect to each reagent for the following reaction? Then write the rate law equation.
If the chemistry of a plant is the same on a different planet as it is on earth, would it still be green in color if no light with wavelength less than 650 nm reaches the surface. Would they be this color everywhere
A 50.00 mL solution of 0.0273 M formic acid (Ka = 1.8 x 10^-4) is titrated witha 0.0373 M solution of sodium hydroxide as a titrant. What is the pH of the acid solution at the equivalence point
sample of KHP requires 19.27mL of NaOH to reach the end point. What is the concentration of NaOH?
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