siiky
2023/07/28
2023/07/28
2023/07/28
science,chemistry
Acids increace the concentration of H+ (protons) when in an aqueous solution; bases increase the concnetration of OH- when in an aqueous solution.
Acids donate protons (H+); bases accept protons (H+).
HCl (aq) -> H+ (aq) + CL- (aq)
NaOH (aq) -> Na+ (aq) + OH- (aq)
From this we can conclude that HCl is an acid, and that NaOH is a base.
pH = -log10 [H+] = -log10 [H3O+] (where [H+]/[H3O+] is the concentration of H+/H3O+)
Assuming [H+] is 10^-7 M for pure (distilled) water, 10^-4 M for orange juice, and 10^-12 M for bleach: water's pH is -log10(10^-7) = -(-7) = 7; orange juice's pH is 4; and bleach's pH is 12.