Inorganic Compounds:Water -Hydrogen ·Hydrogen bonding bond between water molecules makes water a temperature buffer. (b) Figure 2.4b
• Hydrogen bonding between water molecules makes water a temperature buffer. Inorganic Compounds: Water Figure 2.4b
Acids,Bases,and Salts HCI 。An acid is a substance that dissociates into one or more H+. HCI→H++CH H+ (a】Acid Figure 2.6a
• An acid is a substance that dissociates into one or more H+. HCl → H+ + Cl− Acids, Bases, and Salts Figure 2.6a
Acids.Bases,and Salts NaOH 。A base is a substance that dissociates into one or more OH-. NaOH->Na++OH- Na+ OH- (b)Base Figure 2.6b
• A base is a substance that dissociates into one or more OH− . NaOH → Na+ + OH− Acids, Bases, and Salts Figure 2.6b
Acids,Bases,and Salts NaCI 。A salt is a substance that dissociates into cations and anions, neither of which is H+ or OH-. Na+ NaCl→Nat+CH (c)Salt Figure 2.6c
• A salt is a substance that dissociates into cations and anions, neither of which is H+ or OH− . NaCl → Na+ + Cl− Acids, Bases, and Salts Figure 2.6c
Acid-Base Balance The amount of H+in a solution is expressed as pH. 。pH=-log[Ht] Increasing [H+],increases acidity. Increasing [OH-]increases alkalinity. Most organisms grow best between pH 6.5 and 8.5
• The amount of H+ in a solution is expressed as pH. • pH = −log[H+] • Increasing [H+], increases acidity. • Increasing [OH− ] increases alkalinity. • Most organisms grow best between pH 6.5 and 8.5. Acid-Base Balance