Question

How many atoms are there in 95.3 g of barium chloride (BaCl2)?

Answer 1

multiply the given mass by the molar mass. then, proceed to multiply with avogadro's number: \(\sf \color{red}{6.022 \times 10^{23} \frac{atoms}{mol}}\)

Answer 2

Molar mass = mass of barium \(\times\) \(\sf \color{Red}{2}\)(mass of chlorine)

the masses can be found on periodic table under the element.

Answer 3

You can find their masses on here: http://ptable.com/ just click on any element that you need and the mass comes up.

Answer 4

so it would be 7.9X10^27

Answer 5

it was incorrect

Answer 6

You're close, but I think your power is wrong.

Answer 7

It should not be 10\(^{27}\)

Answer 8

i keep getting 27;O

Answer 9

Try 10\(^{21}\)

Answer 10

still incorrect:(

Answer 11

yeah its not right still but thank you for your help!

Answer 12

2.75 \(\times\) 10\(^{23}\)

Answer 13

Sorry, I am using an old non-scientific calculator, I think that should be right now that I'm using my phone.