Explain with example what is meant by mole of a substance
Answers
Answer:
One mole is defined as the amount of substance containing as many elementary entities (atoms, molecules, ions, electrons, radicals, etc.) as there are atoms in 12 grams of carbon - 12(6. 023×1023). The mass of one mole of a substance equals to its relative molecular mass expressed in grams.
Answer:
One mole is defined as the amount of substance containing as many elementary entities (atoms, molecules, ions, electrons, radicals, etc.) as there are atoms in 12 grams of carbon - 12(6.023×10
23
).
The mass of one mole of a substance equals to its relative molecular mass expressed in grams. Mole defines the quantity of a substance. One mole of any substance will always contain 6.022×10
23
particles, no matter what that substance is.
Therefore, we can say:
1 mole of potassium atoms (K) contains 6.022×10
23
potassium atoms.
1 mole of potassium ions (K
+
) contains 6.022×10
23
potassium ions.
1 mole of hydrogen atoms (H) contains 6.022×10
23
hydrogen atoms.
1 mole of hydrogen molecules (H
2
) contains 6.022×10
23
hydroger molecules.