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500.0 mL of 0.8000 M potassium chlorate (molar mass: 122.55 g/mol) is diluted to 850.0 mL. How many grams of potassium chlorate are present in the diluted solution?
Compute the enthalpy change for the thermite reaction: 2Al(s)+Fe2O3(s)→2Fe(s)+Al2O3(s), ΔH°rxn=-850 kJ Explain when 8.00mol of Al undergoes the reaction with a stoichiometrically equivalent amount of Fe2O3.
Calculate the enthalpy and entropy departure for water at 400 C and 30 MPa using generalized correlations. Compare these values to those in the steam tables
Write characters of the representation of the direct product E x E and determine the IRs which compromise them - divide symmetry operations into appropriate
An analysis of the properties of the selected atom and its most common ion. An explanation of the difference between the stabilities of the selected atom.
the laboratory is dissolved in 95% ethanol, diluted with water, and titrated to a phenolphthalein endpoint with 17.3 mL of 0.114 M NaOH. What is the percent purity of aspirin in the sample?
The solubility of benzoic acid in water is 6.80g per 100mL at 100 degrees Celcius. Calculate the minimum volume of water needed to dissolve 1.00g benzoic acid at 100o^C
what mole and volume of propane in liter at STP would have to be used for heating domestic water ?. Del H for combustion of propane is -- 2050 kj and specific heat of water = 4.2 kj /g
Calcium hydroxide, Ca(OH)2, has a solubitlity of 1.85 g/L at 0.0 C. What is the solubility product constant (Ksp) for a saturated solution of Ca(OH)2 at 0.0 C
what is the mass of pentane that vaporizes? density is .626gml and pure vapor pressur eis 511 at 25 degree celcius.
A sample of an oxide of antimony (Sb) contained 19.75 g of antimony combined with 6.5 g of oxygen. What is the simplest formula for the oxide?
Now you find yourself on an airplane headed for Israel to visit the Dead Sea, which is below sea level. You have always wanted to visit there and now is your chance. What has happened to the atmospheric pressure?
A magnesium goes from its grond state to its first electronically excited state. I assume the ground state is a singlet.
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