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2 cards from this section. Quick, good the night before a test.
Determine the empirical formula for a compound with 50% sulfur and 50% oxygen.
Consider the ratio of the two elements.
If a compound is 25% nitrogen and 75% oxygen, what is its empirical formula?
Convert percentage to mole then find the simplest ratio.
What does an empirical formula represent?
Think about the formula's representation.
True or False: The molecular formula can provide more detail than the empirical formula.
Consider what each formula indicates.
A compound has 11.19 g of sodium, 8.40 g of chlorine, and has a molar mass of 58.5 g/mol. Determine its empirical and molecular formula.
Convert the mass of each element to moles and find the simplest ratio.
For a compound composed of 40% carbon and 60% hydrogen that has a molar mass of 30 g/mol, determine the empirical and molecular formula.
Calculate moles and then relate the empirical formula to the molar mass.
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