Question

find the moles in 0.02gram of calcium​

Answer 1

Answer:

Moles= mass/ molar mass

Moles= 2/ 40.1 (roughly)

0.025 (roughly)

Moles • 6.02 •10^23= atoms

Atoms= 1.5 • 10^22

Assuming that each atom contains exactly 20 electrons, there theoretically would be 3 • 10^23 electrons

hope it helps you...

Answer 2

Answer:

no. of moles =noofgrammolarmass

= 0.840

= 0.02.

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