Moles help (1 Viewer)

[pscecelia]

Don't judge.....
2.575x10^24 molecules of h20(water). How many moles is this and what I'd the mass?

 

[Beaconite]

2.57 * 10^24 / avogadro's number = no of moles

 

[Parvee]

2.57 * 10^24 / avogadro's number = no of moles

^
For the mass you use
no moles= mass/molar mass
and rearrange for mass

 

[Beaconite]

^
For the mass you use
no moles= mass/molar mass
and rearrange for mass

woops didn't read the second bit lol

Thanks Parvee