Which element contains the greatest number of moles?

wandella

8 years ago

Mole=reacting mass/molar mass.
For helium:reacting mass=4.0g
Molar mass=6g/mol
Therefore mole=4/6=0.667mol

For carbon:reacting mass=46g
Molar mass=12g/mol
Therefore mole=46/12=3.833mol

For potassium : reacting mass=78g
Molar mass=39.0g/mol
Therefore mole=78/39=2mol

For zinc : reacting mass=130g
Molar mass=65.0g/mol
Therefore mole= 130/65=2mol

For silver : reacting mass=216g
Molar mass=108g/mol
Therefore mole=216/108=2mol

Therefore largest move is carbon (B)

Asuje

2 years ago

carbon : reacting mass is =46g
molar mass=12g/mol
so the mole 46/12=3.833mol
making carbon the correct answer

Emegwalumiriam

5 years ago

48g of carbon

Adimonye

5 years ago

I want to explain its but i can't

ADERINOLAADEPELUMICHISOM

3 months ago

This answer is wrong bcs mollar mass of carbon is 12 mass is 48 so 48/12 is 4 buh molarmass of silver is 47 and mass is 216 that is 216/47 to give u 4.5
so the correct answer should be E.

joeclades

3 months ago

it was just saying error:instance of Parse selection

ADERINOLAADEPELUMICHISOM

3 months ago

48g of carbon that is 48 divided by 12 =4
and 216g of silver that is 216 divided by 47=4.5 so the answer should be E because 4.5 is greater than 4