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A reaction produces 0.871of H2O. How many molecules are produced
Question- A 52.0- mL volume of 0.35M Ch3COOH (ka = 1.8*10^-5) is titrated with 0.40 M NaOH. Calculate the pH after the addition of 15.0 mL of NaOH.
The enthalpy change at 25C and 1 atm for the complete burning of 1 mol of acetone in oxygen to give CO2(g) and H2O(l) is -1791kJ. Calculate the standard enthalpy of formation of acetone.
a large weather balloon filled with helium as a volume of 7.00 x 102 l at stp. which expression should be used to find
nh3 is kept in a cylinder with a movable piston at the temperature of 25 degree celcius and the pressure of 2.50 atm
assume you have one hydrogen molecule in a 1.00 l flask at room temperature. calculate the average energy of the h2
Nitrogen gas when combined with hydrogen gas forms ammonia gas according to the following equation N2(g) + 3H2(g) = 2NH3(g). Delta H(rxn)=-56 kJ. The delta H(rxn) was determined using Hess's Law and the following three related reactions
You need to produce a buffer solution that has a pH of 5.38. You already have a solution that contains 10. mmol (millimoles) of acetic acid.
ammonium carbonate nh4co2nh2 decomposes as followsnh4co2nh2sltgt 2nh3g co2gstarting with only the solid it is found
What point defects are possible for Al2 O3 as an impurity in MgO? How many Al3+ ions must be added to form each
T/F: The molecules in a real gas have finite volumes and do exert forces on each other, thus real gases do not conform to some of the assumptions of an ideal gas as stated by thekinetic molecular theory.
Type the half-cell reaction that takes place at the cathode for the iron-silver voltaic cell. Indicate physical states using the abbreviation (s), (l), or (g) for solid, liquid, or gas, respectively. Use (aq) for an aqueous solution. Do not forget..
A sample of diatomic gas has a density of 0.002061 g/mL at 1.8 atm pressure and 25.0 °C. Identify the gas.
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