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The density of a liquid sulfur compound is 1.14 gmL1. This compound contains 23.7% sulfur. How many milliliters of the compound must be burned to obtain 6.40 g of SO2?
What is the correct expression for the molarity of the solution? (Be sure to express your answer to the correct number of significant figures and also show the absolute uncertainty.)
Assume that the specific heat of the solution is the same as that of pure water. Calculate delta(H) (in kJ/mol NH4NO3) for the solution proces.
draw the complete structure of lysine, including the site of ionization, in: strongly acidic solution, neutral solution, strongly basic solution.
15g of steam at 373 K is added to 250g of H2O at 298 K at constant pressure of 1 bar. Is the final state of the system steam or liquid water? Calculate changes in entropy for the process.
if grams of ammonia are reacted with 4.75 grams of oxygen gas, how many grams of nitrogen oxide will be produced.
What are the Bi and Bi+ quantum numbers of the electron removed when Bi is ionized to Bi+?
If 30.00 mL of 0.500 M HCl is used to neutralize 10.00 mL of KOH, what is the concentration of the base?
The enthalpy for combustion of benzene (C6H6) is -3270 KJ/mole. How much heat is release on the combustion
An aqueous solution containing 34.1 g of an unknown molecular (nonelectrolyte) compound in 141.3 g of water was found to have a freezing point of -1.5 degrees C. Calculate the molar mass of the unknown compound.
What is the percent purity of NaHCO3 in your baking soda? (The formula weight of NaHCO3 is 84.007 g/mole).
A solution of 0.2113 g of water dissolves in 25.0 g of a solvent which freezes at 11.5 EC below the freezing point for the pure solvent. What is the Kf value for this solvent?
A hot air balloon is inflated to its full extent by heating the air inside it. In the final stages of this process the volume of the balloon changes from 4.00 x 10^6 L to 4.50 x 10^6 L by addition of 1.3 x 10^8 J of energy as heat.
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