If N is the number of molecules of a gas in a container. The number of moles can be calculated as:
Correct answer: C. N/NA
- A. AN+NA
- B. NA/N
- C. N/NA
- D. N*NA
Explanation
We know that the number of molecules= no. of moles * Avogadro's numberN= no. of moles * NAAdjusting the equationNo. of moles = N/NA.
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About Moles and Avogadro's Number
The mole connects the microscopic number of particles with measurable mass, using Avogadro's number, 6.022 × 10²³ particles per mole. Questions involve molar mass, conversion between mass, moles and particles, percentage composition, empirical and molecular formulas, and distinguishing atoms, molecules, ions and formula units.
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