Question

How many moles of silver (Ag) are present in a sample of 3.8 × 1024 atoms Ag?

1.6 mol Ag

2.3 mol Ag

6.3 mol Ag

22.8 mol Ag

Answer 1

Simply conversion factor. you have 3.8*10^24 atoms Ag, and want moles. so take the number you have and divide it by 6.2*10^23, and that gives you moles of Ag.

Answer 2

Come on bro that isn't helping me you need to tell me how to use Avogadro's number because I am stumped. I do not know how to read a scientific notation calculator.

Answer 3

ook hold on

Answer 4

Some calculators have a key marked x^y (or sometimes with the y as a superscript). That's x raised to the power y. Type in the base (the x value) press the x^y key then the exponent.

Answer 5

there now do u understand how to use the calculator?

Answer 6

I think so hold on

Answer 7

it gives me 3.8e + 24 for the first one and 6.2e + 23 for the second what does that mean and how can I divide that?