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In Chemistry / Middle School | 2014-07-02

Which quantity can be calculated for a solid compound, given only the formula of the compound and the Periodic Table of the Elements?

1. The density of the compound
2. The heat of fusion of the compound
3. The melting point of each element in the compound
4. The percent composition by mass of each element in the compound

Asked by Leischner148

Answer (2)

The answer is the percent composition which is number 4. This is the percent by mass of each element existing in a compound. To compute for this, you need to find two things: the mass of just the element, and the molar mass of the entire compound. Afterwards, you take the molar mass of only the element and divide it by the molar mass of the entire compound, and multiply by 100%.

Answered by W0lf93 | 2024-06-11

The percent composition by mass of each element in a compound can be calculated using its formula and the Periodic Table. This involves determining the molar mass of the compound and the mass of each element. Therefore, the chosen option is 4.
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Answered by W0lf93 | 2024-12-09