What are the subscripts in the empirical formula
A compound is 40.0% C, 6.70% H, and 53.3% O by mass. Assume that we have a 100.- g sample of this compound. What are the subscripts in the empirical formula of this compound?
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The mass of a cube of iron is 434 g. Iron has a density of 7.87 g/cm3. What is the mass of a cube of lead that has the same dimensions?
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A solution is made by dissolving 26.42g of (NH4)2SO4 in enough H2O to make 50.00mL of solution. What is the molar mass of (NH4)2SO4?
A metal container holding xenon gas (Xe) has a pressure of 458 torr at 20 degrees celcius. At what temperature will the pressure be 1.00atm?
determine the total number of moles of oxygen that react completely with 8.0 moles of C2H6.
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