1 / 9

Understanding Hydrogen Bonds and pH: Water Chemistry Explained

Explore the role of hydrogen bonds in water cohesion and adhesion, as well as the pH scale with examples ranging from battery acid to household bleach. Learn how water properties vary under different conditions.

leecraig
Download Presentation

Understanding Hydrogen Bonds and pH: Water Chemistry Explained

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Fig. 3-1

  2. – Hydrogen bond Fig. 3-2 + H —— O – —— + H + – – +

  3. Adhesion Water-conducting cells Fig. 3-3 Direction of water movement Cohesion 150 µm

  4. Fig. 3-4

  5. Fig. 3-6 Hydrogen bond Liquid water Hydrogen bonds break and re-form Ice Hydrogen bonds are stable

  6. Fig. 3-6a Hydrogen bond Liquid water Hydrogen bonds break and re-form Ice Hydrogen bonds are stable

  7. – Na + + + – – + – – Na + Fig. 3-7 – + + Cl– Cl– + – – + – + – –

  8. pH Scale 0 1 Battery acid Gastric juice, lemon juice 2 H+ H+ H+ Vinegar, beer, wine, cola OH– 3 H+ H+ OH– Increasingly Acidic [H+] > [OH–] H+ H+ H+ 4 Tomato juice Acidic solution Fig. 3-9 Black coffee 5 Rainwater 6 Urine OH– Saliva OH– Neutral [H+] = [OH–] 7 Pure water OH– H+ H+ OH– OH– Human blood, tears H+ H+ H+ 8 Seawater Neutral solution 9 10 Increasingly Basic [H+] < [OH–] Milk of magnesia OH– OH– 11 OH– H+ OH– Household ammonia OH– OH– OH– H+ 12 Basic solution Household bleach 13 Oven cleaner 14

  9. 0 More acidic 1 2 Acid rain Acid rain 3 4 Fig. 3-10 5 Normal rain 6 7 8 9 10 11 12 13 More basic 14

More Related