從chemical properties黎睇...
conc. sulpuric acid同dil. sulphuric acid有咩分別呀@@?
2006-10-29 13:57:41 · 5 個解答 · 發問者 alice 2 in 科學 ➔ 化學
Differences in chem. prop. cover 4 areas
Area A :
The oxidising power of Conc.H2SO4 is much stronger than dil. H2SO4
Conc.H2SO4 can oxidze metal / non - metal / compounds
It is commonly reduced to SO2
Area B :
Conc. sulphuric acid act as a dehydrating agent but dil. H2SO4 cannot
(CuSO4-5H2O ---- CuSO4 + 5H2O)
I hereby say 2 areas , if u want to know more , pls e- mail to me
pele159@yahoo.com.hk
2006-10-29 20:05:51 · answer #1 · answered by pele 4 · 0⤊ 0⤋
dil. sulphuric acid 只是一個強的無機酸，再沒有甚麽特別的化學性質。
conc. sulpuric acid除了是一個強的無機酸之外，還是一個強氧化劑，例如一般無機酸會與銅反應，但濃硫酸會，尤其是熱的濃硫酸。
此外濃硫酸更是一個脫水劑，應用於多個脫水反應中，這都與稀硫酸同。例如
CuSO4-5H2O ---> CuSO4 + 5H2O
CuSO4-5H2O 是藍色的。而
無水CuSO4 是無色的。
2006-10-29 15:56:08 · answer #2 · answered by ? 7 · 0⤊ 0⤋
conc. sulpuric acid是濃硫酸dil. sulphuric acid是稀硫酸.但不會因濃d而酸d,即pH值變低,而是molarity(摩爾濃度)不同,即conc. sulpuric acid的molarity比dil. sulphuric acid高.
2006-10-29 14:46:43 · answer #3 · answered by 基斯XChris 5 · 0⤊ 0⤋
從chemical properties黎睇...
conc. sulpuric acid同dil. sulphuric acid有咩分別呀@@?
係個concentration唔同
一個濃d,一個浠d
2006-10-29 14:40:32 · answer #4 · answered by Amby 6 · 0⤊ 0⤋
sulpuric acid強酸一些。
dil. sulphuric acid弱酸一些。
2006-10-29 14:25:44 · answer #5 · answered by Tsang 5 · 0⤊ 0⤋