April01112
contestada

There are 3.20 x 10^22 atoms of copper in the outer shell of pennies. How many grams of
copper is this?
if you can please find the formula and molar mass please! ​

Respuesta :

stannctdream
convert to moles first and then use the molar mass of copper to convert to grams
Ver imagen stannctdream
khuranashilpa76

To convert atoms into mass,first convert atoms into moles than divide by molar mass.

Mole concept

Number of atoms of copper given= 3.20×110^22

Number of atoms in one mole= 6.022×10^23

∴ number of moles in 3.20×10^22 = atoms divide by 6.022× 10^23

⇒0.053 moles

Mass of one mole of copper is 63.5 gram

Grams of atoms in 0.053 moles= 0.053×63.5

 ⇒ 3.365 grams

What is mole?

Mole is the collection of 6.022 × 10^23  entities i.e atom,molecules,ions ,electrons etc.

Learn more about mole concept here: https://brainly.com/question/16488605

#SPJ2

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