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Question 6
What is the number ofmo ecules in 500cm^3	understandard conditions?
A 6.02times 10^23times 0.5
B. 6.02times 10^23times 500
C (22.7)/(0.5)times 6.02times 10^23
D (0.5)/(22.7)times 6.02times 10^23

Question 6 What is the number ofmo ecules in 500cm^3 understandard conditions? A 6.02times 10^23times 0.5 B. 6.02times 10^23times 500 C (22.7)/(0.5)times 6.02times 10^23 D (0.5)/(22.7)times 6.02times 10^23

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Kıdemli · 11 yıl öğretmeni

Cevap

To determine the number of molecules in 500 cm³ under standard conditions, we need to use the ideal gas law and Avogadro's number.First, let's recall that under standard conditions (0°C and 1 atm), 1 mole of an ideal gas occupies 22.7 liters (or 22700 cm³).Given:- Volume = 500 cm³- 1 mole of gas occupies 22700 cm³We can set up a proportion to find the number of moles: Solving for : Next, we multiply the number of moles by Avogadro's number ( molecules/mole) to find the number of molecules: Simplifying this expression: This matches option D: Therefore, the correct answer is:D.