Question

How do I figure out the number of atoms in element, when I know the molar mass is 3.30 ???

Answer 1

whats the element ?

Answer 2

Krypton

Answer 3

so you have 3.3 moles of Krypton, and you want to find how many atoms are there, is tha t right ?

Answer 4

Yes

Answer 5

replace mole wid Avogadro number

Answer 6

Ok

Answer 7

1 mole = 6.022 × 10^23 items

Answer 8

just like, 1 dozen = 12 items

Answer 9

3.3 moles of Kr = 3.3 x 6.022 × 1023 atoms

Answer 10

Thanks, a bunch. :)

Answer 11

We're did you get1023

Answer 12

Please answer me , I need some clarification .

Answer 13

3.3 moles of Kr = \(3.3 \times 6.022 × 10^{23}\) atoms

Answer 14

its like that

Answer 15

\(1\ mole = 6.022 \times 10^{23} \) atoms

Answer 16

Oh oops ok thank you very much. :)

Answer 17

wlc :)

Answer 18

So the answer is 19x10 to 23 atom
According to significant figures

Answer 19

you wanto show it in scientific notation ?

Answer 20

So the answer is 19 x 10 to 23 power
According to significant figures

Answer 21

\(3.3 \times 6.022 × 10^{23}\)

\(19.8726 \times 6.022 × 10^{23}\)

\(1.98726 \times 6.022 × 10^{24}\)

Answer 22

thats scientific notation, we must change that 19.xxxx to 1.9xxxx

Answer 23

Oh yeah forget .....well really once again thank you.

Answer 24

yw