How many moles of CO2 contain 16g of oxygen?
Correct answer: C. 0.5 mol
- A. 5 mol
- B. 16 mol
- C. 0.5 mol
- D. 2 mol
Explanation
1 mol of CO2 contains = 32 g O2=1 6 g O2 will be present in = 16/32 = 0.5 mol
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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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