What is Avogadro's number? What number of oxygen atoms are present in 4g of oxygen?
Answers
Answer:
To calculate the number of molecules in 4g of oxygen, we have, Moles of oxygen = 4/32 = 0.125mol, Molecules of oxygen = 0.125 * 6.022 * 10^23 = 7.52 * 10^22. 6.02 x 1023 atoms of oxygen 1 amu = 1.661 x 10-24g.
Answer:
Oxygen - Oxygen is a chemical element. it is also a non-metal. Fire can extinguish only in the present of oxygen.
Atomic number : 8
Symbol : O
Atomic mass: 15.999 u
Discovered by : Joseph Priestley, Antoine Lavoisier, Carl Wilhelm Scheele, Edwin McMillan.
✨Uses of Oxygen -
Oxygen is used by plants and animals in the process of respiration.
Oxygen Tanks are used in hospital for patience who've breathing problems.
Oxygen is used in industries for manufacturing.
Oxygen is also used by scuba diver and astronaut for surviving.
Explanation: