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50.0 ml of 0.987 M HCl was mixed with 50.0 ml of 1.02 M NaOH, the heat of neutralization was calculated to be -2.7 kJ. What is the enthalpy (molar heat) of neutralization?
The enthalpy of fusion of ethanol is 5.02 kJ/mol, and its enthalpy of vaporization is 38.56 kJ/mol.
State three acids, bases, and salts used in therapeutic processes. Describe how one of each is used in therapeutic processes.
?Hf0 for the formation of rust (Fe2O3) is -826 kJ/mol. How much energy is involved in the formation of 5 grams of rust.
The Environmental Protection Agency has estimated that 119 tons of mercury are currently emitted to Earth's atmosphere annually due to human activities
Determine the mass of carbon dioxide produced when .85 grams of butane reacts with oxygen according to the following equation : 2C4 H10 + 13O2 ->8CO2 + 10H2O
The percent by mass of bicarbonate (HCO3-) in a certain Alka-Seltzer product is 32.5 %. Calculate the volume of CO2 generated at 37ºC and 1.00 atm when a person ingests a 3.29g tablet.
Mg + 2 HCL -> MgCl2 + H2 What volume of hydrogen at STP is produced from the reaction of 50.0 g of Mg and the equivalent of 75 g of HCl?
How many grams of lanthanum chloride LaCl3 must be added to 1 kg of water to lower the freezing point of water by 1.1 degrees C?
Kc = 9.7 at 900 K for the reaction NH3(g) + H2S(g) --> NH4HS(s) If the initial concentrations of NH3(g) and H2S(g) are 2.0 M, what is the equilibrium concentration of H2S(g)?
A 45.0-rm mL sample of this glucose solution was diluted to 0.500 rm L. How many grams of glucose are in 100. rm mL of the final solution?
Compute the composition of the crystals and the yield of the process. Also determine the composition of the mother liquor?
Electrochemical cell potentials can be used to determine equilibrium constants that would be otherwise difficult to determine because concetnrations are small
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