作者dougho (Doug)
看板Chemistry
標題[問題]molarity跟molality的問題
時間Fri Dec 2 06:41:27 2005
問題如下：
1) Concentrated nitric acid is a solution that is 70% HNO3, by mass. The density of this acid is 1.42 g/cm3. What is the molarity of this acid?
2) What is the molality of a solution of 50.0 g of propanol (CH3CH2CH2OH) in 152 mL water, if the density of water is 1.0 g/mL?
有沒有大大可以教我這兩題要怎麼做阿～？
也可以跟我解釋一下molarity跟molality的不同嗎?
搞很久都搞不懂><
謝謝大大喔~^^
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1F：推 chiehly:molarity是體積莫耳濃度,molality是重量莫耳濃度 12/02 07:37
2F：→ chiehly:體積莫耳濃度:溶質mol/溶液L,重量莫耳濃度:溶質mol/溶劑kg 12/02 07:40