# chemistry

posted by .

"Suppose you had a mole of gold atoms (radius=144pm) and could link the atoms together like a string of pearls. How many of these gold necklaces could you make using 1 mole of gold atoms so that each necklace would stretch from the earth to the sun? (Distance from earth to the sun =92.58 million miles; 1 mile=1.6093km)."

• chemistry -

Au has a radius of 144 pm so the diameter is 288 pm and that is 288 x 10^-12 meters. Convert that to km, convert 92.58 million miles to km, and divide distance by the diameter. Post your work if you get stuck.

• chemistry -

6.53*10-20

• CHEMISTRY VERIFICATION -

92.58*10^6 = 148,988,994km

148988994/2.88*10^-13=5.17*10^20

This doesn't seem right?

• chemistry -

I got 1164.07 necklaces. The answer above is how many gold atoms it takes to go around the earth, but you have to divide that into Avagadro's number because that is how many atoms you have to work with. Idk. I could be wrong.

## Similar Questions

1. ### Physics

Hi guys, i get stuck with this question. Pls help. thanks so much. I know there are 4 atoms in FCC. A gold particle was measured to be spherical in shape with a radius of 400 nm. Note that assuming the gold atoms are small spheres …
2. ### science

Hi guys, i get stuck with this question. Pls help. thanks so much. I know there are 4 atoms in FCC. A gold particle was measured to be spherical in shape with a radius of 400 nm. Note that assuming the gold atoms are small spheres …
3. ### chemistry

Hi guys, i get stuck with this question. Pls help. thanks so much. I know there are 4 atoms in FCC. A gold particle was measured to be spherical in shape with a radius of 400 nm. Note that assuming the gold atoms are small spheres …
4. ### chemistry

Calculate the mass, in grams, of each of the following. a) 1.2×10^23 gold atoms b) 2.78×10^22 helium atoms c) 2.0×10^23 lead atoms d) 7.6×10^21 uranium atoms
5. ### Chemistry (urgent)

The gold foil Rutherford used in his scattering experiment had a thickness of approximately 4×10^−3 mm. If a single gold atom has a diameter of 2.9 x10^-8cm , how many atoms thick was Rutherford's foil?
6. ### chem

How many gold atoms are in an 0.408 ounce, 18 gold bracelet?
7. ### Chemistry

How many moles of gold atoms do 3.45 x 10^24 gold atoms constitute. This is what I did 3.45 x 10^24 x 1 / 6.022 x 10^23 = 573 am I right
8. ### chemistry

Which will make you more wealthy, one mole of pennies (6.02e23 pennies) or one mole of gold atoms (6.02e23 atoms)?
9. ### Chemistry

A bracelet containing .200 mol of metal atoms is 75% gold. How many particles of gold atoms are in the bracelet?
10. ### Chemistry

An atom of gold has a mass of 3.271 times 10^-22g. How many atoms of gold are in 5.00g of gold?

More Similar Questions