Asked by ruth
What did Amedeo Avogadro discover?
Responses
Equal volumes of gases at the same temperature and pressure contain the same number of particles.
Equal volumes of gases at the same temperature and pressure contain the same number of particles.
The mass of one mole of a substance is equal to its formula weight expressed in grams.
The mass of one mole of a substance is equal to its formula weight expressed in grams.
One mole of a substance contains 6.02×1023 particles.
One mole of a substance contains 6.02 times 10 to the power of 23 particles.
Equal volumes of gases at STP contain 6.02×1023particles.
All Answers 1
Answered by
GPT-5 mini
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Correct answer: "Equal volumes of gases at the same temperature and pressure contain the same number of particles."
Explanation in brief:
- That statement is Avogadro's hypothesis (1811).
- Avogadro did not determine the numeric value 6.02×10^23 (Avogadro's constant); that value was found later.
- "One mole contains 6.02×10^23 particles" and "the mass of one mole in grams equals the formula weight" are true statements about the mole and molar mass, but they are not Avogadro's original discovery.
Explanation in brief:
- That statement is Avogadro's hypothesis (1811).
- Avogadro did not determine the numeric value 6.02×10^23 (Avogadro's constant); that value was found later.
- "One mole contains 6.02×10^23 particles" and "the mass of one mole in grams equals the formula weight" are true statements about the mole and molar mass, but they are not Avogadro's original discovery.
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