subject
Engineering, 19.03.2020 00:02 landoncardenp8iqvl

A 10 mol% aqueous sulfuric acid solution (SG = 1.27) is to be titrated to neutrality at 25 °C with a 3 molar caustic soda (NaOH) solution (SG = 1.13): H24 () + 2H() → 24 () + 2H2() (a) Calculate the required volume ratio (cm3 caustic solution/cm3 acid solution). (b) Calculate the standard heats of formation (kJ/mol solute) of each of the three solutions involved in this process, and the heat released (kJ/cm3 acid solution neutralized) if the reactants and products are all at 25 °C. The heat of solution of sodium sulfate is -1.17 kJ/mol. Assume that Q = ΔH for the process.

ansver
Answers: 2

Other questions on the subject: Engineering

image
Engineering, 04.07.2019 18:10, siri5645
At 12 noon, the count in a bacteria culture was 400; at 4: 00 pm the count was 1200 let p(t) denote the bacteria cou population growth law. find: (a) an expression for the bacteria count at any time t (b) the bacteria count at 10 am. (c) the time required for the bacteria count to reach 1800.
Answers: 1
image
Engineering, 04.07.2019 18:10, redrosesxx
Water at 55c flows across a flat plate whose surface temperature is held constant at 95c. if the temperature gradient at the plate's surface for a given value of x is 18 c/mm, find a) local heat transfer coefficient. b) heat flux
Answers: 3
image
Engineering, 04.07.2019 18:20, safiyabrowne7594
Ahe-xe mixture containing a 0.75 mole fraction of helium is used for cooling electronics in an avionics application. at a temperature of 300 k and atmospheric pressure, calculate the mass fraction of helium and the mass density, molar concentration and molecular weight of the mixture. if the cooling capacity is 10 l, what is the mass of the coolant?
Answers: 3
image
Engineering, 04.07.2019 19:10, Destinationz
Asteam is contained in a rigid tank with a volume of 1 m3. initially, the pressure and temperature are 7 bar and 500 oc, respectively. the temperature drops due to cooling process. determine: (1) the temperature at which condensation begins in °c, (2) the fraction of the total mass that has condensed when the pressure decreased to 0.5 bar. (3) the volume in m3 occupied by saturated liquid at the final state?
Answers: 3
You know the right answer?
A 10 mol% aqueous sulfuric acid solution (SG = 1.27) is to be titrated to neutrality at 25 °C with a...

Questions in other subjects:

Konu
Mathematics, 25.01.2020 06:31