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Problem- What is the manimum amount of Fe2O3 that can be formed from the reaction of 12.0g of MgO and 10.0g of Fe? (Unbalanced)
MgO + Fe ---> Fe2O3 + Mg
Please depict all your steps and calculations? thank you
Problem- What molar ratio of acetic acid to sodium acetate is required to create a buffer solution having a ph of 4.80 at25C? Ka forHC2H3o2 is 1.8*10^-5
The product of the complete hydrolysis contained 1.8 mg of the compound shown below, and no other 2,4-dinitrophenyl derivatives of the ?-amino groups of other amino acids could be found How many polypeptide chains are in this protein?
The standard enthalpy of formation of gaseous H2O at 298 K is -241.82 kJ mol-1. Estimate its value at 75 °C given the following values of the molar heat capacities at constant pressure:
For the equalibrium PCl5(g) PCl3(g) + Cl2(g), Kc= 2.0 x 10^1 at240 celcius. If pure PCl5 is placed in a 1.00-l container and allowed to come to equalibrium, and the equalibrium concentration of PCl3(g) is 0.23 M, what is the equalibrium concentr..
Explain why and calculate the difference between the delta S° values at 298 K for the complete dissociation of the two complex ions. (Hint: the value delta H is about the same for both systems.)
The nuclide 198 au 79 has a half life of 64.8 hours. what is the rate constant for the decay of 198 au 79. how much of a 0.0100g sample of 198 au 79 remians after 1 day.
a quantity of nitrogen initially held at a pressure of 3.80 atm in a 1.00l container at the temperature of 27 degree
The two salts NaHPO4 and Na2HPO4 are used to make a buffer. Which one is the acid and which one is the base
a 350.0 ml sample of oxygen gas was collected over water at a temperature of 25.0ordmc and 740.0 mm hg. how many moles
How does the enthalpy change for the neutrlization of hydrochloric acid compare to the enthalpy change for the neutralization of aceitc acid. Explain any similarities or differences.
cyclohexane-toluene mixture, and then obtain IR spectra for each fraction. How would the IR spectrum of the first 1 mL fraction look different from that of the last 1 mL fraction?
A sample of solid ammonium sulfide (NH4)2S, is placed in a closed bulb which is then filled with 0.0150 mol of inert He gas. The pressure of the He at 25°C is 145 mm Hg.
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