Re: HSC Chemistry Marathon 2016
Hey,
Yeah, ur right I read wrong and thought no. of cu atoms was 4.6* 10^24 instead of 10^23. Not sure about ur method tbh, cuz it doesn't make sense to me ahahahahaha
I just did mass cu2s/mm cu2s = moles of Cu/2
= (4.6/6.022) / 2
Mass Cu2S = [(4.6/6.022...