How many moles are there in 2.6 x 10^24 atoms of Calcium? a.7.0 x 10-24 moles of Cab. 4.4 molesc. 168.36 molesd. .10 moles

asked Sep 23, 2019 97.0k views

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How many moles are there in 2.6 x 10^24 atoms of Calcium?

a.7.0 x 10-24 moles of Cab. 4.4 molesc. 168.36 molesd. .10 moles

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1 mole = 6.02*10²³ particles

2.6*10²⁴ atoms *1 mol/6.02*10²³ atoms = 4.3 mol

Answer : 4.4 moles atoms of Ca

Tamjid answered Sep 29, 2019

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