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2 cards from this section. Quick, good the night before a test.
What does the Law of Multiple Proportions state?
Think about the examples of compounds formed by the same two elements.
What ratio of hydrogen to oxygen exists in water?
How much oxygen do you need to form water?
What does the Law of Multiple Proportions explain?
Focus on the concept of combining elements.
True or False: The Law of Multiple Proportions applies only to two elements combining to form one compound.
Consider the definition of the law.
Using the Law of Multiple Proportions, calculate the ratios of mass for a compound where 4 grams of element X combine with 12 grams of element Y to form compound A, and 4 grams of element X combine with 24 grams of element Y to form compound B. Simplify both ratios.
Look for how the same mass of X compares in different compounds to Y.
How does the Law of Multiple Proportions apply in determining the empirical formula of a compound formed by elements A and B when 2g of A combines with 8g of B in one compound and in another compound, 2g of A combines with 16g of B?
Think about how mass ratios provide the empirical formula!
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