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(懦夫, 做左唔敢認._.)
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sss就sss架喇sss, 解唔明話 ...
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註冊 2007-4-13
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Chem'S Moles
有冇人可以教我!?
What is Mole?
還有幾題問題想請教大家?
Given that L = 6 * 10 ^ 23
Find that no. of H atoms in 500g of H2O
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Calculate the number of neutrons in 20g of D2O where D = 2H1, O = 16O8
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If the mass of 1 O2 molecule is y, what is the mass of 1 SO2 molecule?
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暫時這這麼多...
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