1.在25度C時,0.01M的Hcl(aq)水溶液中,OH¯(aq)的濃度為若干?
2.空氣中二氧化碳的體積百分組成為0.033%,其濃度相當於若干ppm?
可以的話 連算式一起給我!! 感謝各位大大
2006-03-09 17:34:44 · 1 個解答 · 發問者 小y 1 in 科學 ➔ 化學
[HCl] = 0.01 M => [H+] = 0.01 M因 [H+]x[OH-] = 10-14,所以 [OH-] = 10-12 M因為 1% = 10-2,1 ppm = 10-6,所以0.033% = 0.033x104 ppm = 330 ppm
2006-03-09 02:27:49 · answer #1 · answered by Frank 7 · 0⤊ 0⤋