Creonam5uddmoiran Creonam5uddmoiran

29-11-2016
Chemistry

contestada

I need help! how many moles are in 3.4*10^-7 grams of silicon dioxide, SiO2. I got 2.0^17 but I think it's wrong :(

Respuesta :

Abbyvogl Abbyvogl

01-12-2016

Molar mass SiO2 = 28 + 32 = 60

so moles sand = 3.4 x 10-7 / 60

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