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From data below, calculate the total heat (in J) associated with the conversion of 0.499 mol ethanol gas (C2H6O) at 301°C and 1 atm to liquid ethanol at 25.0°C and 1 atm.(Pay attention to the sign of the heat.) Answer should be in J.
Boiling point at 1 atm 78.5°Ccgas 1.43 J/g°Ccliquid 2.45 J/g°CH°vap 40.5 kJ/mol
A solution contains 4.64g KCl in 178 mL of solution. The density of the KCl solution is 1.14 g/mL. What is the molarity,M, for the potassium chloride solution?
acetylene gas undergoes combustion to produce carbon dioxide and water vapor. if 75.0 L of co2 are produced how many liters of acetylene are required?
if you have 200.0 g of radioisotope with a half-life of 5 days. how much isotope would remain after 15
an elemental has a mass of 10.3 grams. if the volume is 58.4 liters and the pressure is 758torrs at a temperature of
Calculate the pH of 3.0*10^-8 M HCl and what fraction of the total H+ in this solution is from HCl. Include two digits after decimal point.
A similar question was asked before, but the formatting of the answer made it unreadable. So, I am asking it again. I have a thermodynamic system with three states in the canonical ensemble
if 0.55 g of a gas dissolves in 1.0 l of water at 20.0 kPa of pressure, how much will dissolve at 110.0 kPa of pressure?
from the equation C2H5OH + 3O2 --> 2CO2 + 3H2O, how many mols of ethanol are needed to use up 3.24 mols of oxygen?
Why does the pH of the blood decrease in a person who has digested tremetol? Answer A. Lactic acid build up decreases blood pH B. Hydrogens pumped by the electron transport chain decrease blood pH C.
The groups in the periodic table are numbered 1 through 18. What are the group numbers of the groups for which the atoms are all diamagnetic in their group electronic states.
Draw the structure(s) of the trans-cycloalkanes with the chemical formula C7H14 that contain a 5-membered ring.
For the following reaction, 4.91 grams of sodium are mixed with excess water. The reaction yields 5.83 grams of sodium hydroxide.
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