Problem: Two samples of a compound containing elements A and B are decomposed. The first sample produces 15 g of A and 35 g of B.The second sample produces 10 g of A and what mass of B?

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According to the Law of Definite Proportions, all samples of a compound, no matter on their origin or preparation has the same ratio in terms of their elements.


ratio of A and B in sample 1 = ratio of A and Bin sampe 2(mass Amass B)1=(mass Amass B)2

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Problem Details

Two samples of a compound containing elements A and B are decomposed. The first sample produces 15 g of A and 35 g of B.

The second sample produces 10 g of A and what mass of B?

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What scientific concept do you need to know in order to solve this problem?

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Based on our data, we think this problem is relevant for Professor Herron's class at UVU.