What is the molecular formula of the compound
compound contains 69.94 percent iron and 30.06 percent oxygen. What is the molecular formula if the molar mass of the compound is 199.55 grams per mole?
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The bullet becomes embedded in the block. If the bullet-block system compresses the spring by a maximum of 88.0 cm, what was the speed of the bullet at impact with the block?
Consider a 1.00-L solution containing 85.5 g Al2(SO4)3 (FW = 342.15) and 21.3 g Na2SO4 (FW = 142.06). What are the molar concentrations of aluminum, sodium, and sulfate ions, respectively
If 12.5 g of CCl3F is enclosed in a 1.1 -L container, will any liquid be present? What is the mass of the liquid? The vapor pressure of CCl3F is at 300 K is 856 torr
If the solubility of a particular solute is 24.3 g/100 g H2O at 20°C, which of the following solution concentrations would represent a supersaturated aqueous solution of the solute?
The initial bond formation in the covalent intermediate in the chyomotrypsin catalyzed reaction is between a. serine and the carbonyl in the peptide backbone.
A 4.40 g nugget of pure gold absorbed 252 J of heat. What was the final temperature of the gold if the initial temperature was 25.0°C? The specific heat of gold is 0.129 J/(g·°C).
Why does Woodrow Wilson believe that autocratic governments, not democratic ones, are the cause of wars?
What mass of sucrose should be combined with 543 g of water to make a solution with an osmotic pressure of 8.00 atm at 285 K? (Assume the density of the solution to be equal to the density of the solvent.)
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