[H^+], [OH^-] 계산. 침, pH 6.5

[H^+], [OH^-] 계산. 침, pH 6.5

a) 침, pH 6.5

b) 토마토주스, pH 4.3

 

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a) 침, pH 6.5

pH = -log[H^+]

( 참고 https://ywpop.tistory.com/2706 )

 

pH = -log[H^+] = 6.5

[H^+] = 10^(-6.5) = 3.1623×10^(-7) M

 

 

[OH^-] = 10^(-14) / (3.1623×10^(-7))

= 3.1623×10^(-8) M

 

 

 

 

b) 토마토주스, pH 4.3

pH = -log[H^+] = 4.3

[H^+] = 10^(-4.3) = 5.0119×10^(-5) M

 

 

[OH^-] = 10^(-14) / (5.0119×10^(-5))

= 1.9953×10^(-10) M