Question

10.Fill in the blanks.
Fill in the following blanks (a) 1 mole contains ...................... atoms, molecules or ions of a substance.
(b) A mole represents an ..................... number of particles of a substance.
(c) 60 g of carbon element are ................... moles of carbon atoms.
(d) 0.5 mole of calcium element has a mass of ......................
(e) 64 g of oxygen gas contains ....................... moles of oxygen atoms.​

Answer 1

Answer:

1. mole contains 6.02X10^23

2.a mole represents avogadro no.

3.5 moles of carbon atom

4.mass=0.5X40=20

5.4 moles of oxygen

Explanation:

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