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

a. 7.0 x 10-24 moles of Ca

b. 4.4 moles

c. 168.36 moles

d ...10 moles

Question

Chemistry

Donna Benson

17 December, 18:44

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

a. 7.0 x 10-24 moles of Ca

b. 4.4 moles

c. 168.36 moles

d ...10 moles

+3

Answers (1)

Know the Answer?

Kendra Frey · Answer 1

There are

6.022140857

(

74

)

*

10

23

calcium

atoms

in 1 mole of

C

a

.

Explanation:

You have specified

2.1

*

10

24

calcium atoms.

So

2.1

*

10

24

⋅

calcium atoms

6.022

*

10

23

⋅

calcium atoms mole

1=? mol

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

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

a. 7.0 x 10-24 moles of Ca

b. 4.4 moles

c. 168.36 moles

d ...10 moles