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: 15-12-19 01:50
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: 4597
pH 4ÀÇ Æó¼ö 750 §© ÀÌ Àִµ¥
NaOH 20% ¸¦ ÀÌ¿ëÇÏ¿© pH 8·Î ¸¸µé·Á ÇÒ¶§
ÇÊ¿äÇÑ NaOHÀÇ ¾çÀº ¾ó¸¶Àΰ¡¿ä?
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Stefano
15-12-20 12:43
(1) pHÀÇ Á¤ÀǷκÎÅÍ H+ ÀÌ¿ÂÀÇ ¸ô³óµµ Â÷¸¦ °è»êÇÏ¿© L´ç H+ ÁßÈ¿¡ ÇÊ¿äÇÑ NaOHÀÇ ¾çÀ» °è»êÇÏ¸é µË´Ï´Ù.
(pH) = -log [H+].............(1)
[H+], g-mole/Lv = 10^(-pH)...........(2)
¥Ä[H+], g-mole/L = [H+]1-[H+]2.....(3) [H+]1 = 10^(-4) g-mole/L, [H+2]2 = 10^-8 g-mole/L
¥Ä[OH-], g-mole/L= ¥Ä[H+] ..............(4)
(2) Á÷Á¢°è»êÇؼ °á°ú¸¦ ´ä±Û·Î ¿Ã¸®¼¼¿ä.
(1) pHÀÇ Á¤ÀǷκÎÅÍ H+ ÀÌ¿ÂÀÇ ¸ô³óµµ Â÷¸¦ °è»êÇÏ¿© L´ç H+ ÁßÈ¿¡ ÇÊ¿äÇÑ NaOHÀÇ ¾çÀ» °è»êÇÏ¸é µË´Ï´Ù. (pH) = -log [H+].............(1) [H+], g-mole/Lv = 10^(-pH)...........(2) ¥Ä[H+], g-mole/L = [H+]1-[H+]2.....(3) [H+]1 = 10^(-4) g-mole/L, [H+2]2 = 10^-8 g-mole/L ¥Ä[OH-], g-mole/L= ¥Ä[H+] ..............(4) (2) Á÷Á¢°è»êÇؼ °á°ú¸¦ ´ä±Û·Î ¿Ã¸®¼¼¿ä.
±è¼ºÁÖ
16-01-14 16:24
10^(-8)mole/L * 40g/mole *750m3*1,000L/m3*5=1.5g
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10^(-8)mole/L * 40g/mole *750m3*1,000L/m3*5=1.5g ¸Â³ª¿ä
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