Acids, Bases and pH：酸,碱,pH值 Acids,BasesandpH PartOne WhatispH?•AmeasureofHydroniumIon(H3O+)concentrationinsolution •Measuredonascalerangingfrom0–14 –Acid=<7–Base=>7–Neutral=7,example:purewater WhatisanAcid?•Asubstancethatproduceshydrogenions(H+)insolution •AcidshaveapHlessthan7...
If we put [H+] = 10-7 M into the equation for pH: pH = -log10[H+] we get pH = 7 for neutrality. Acid and Base pH Acid solutions have pH < 7. pH values lower than 0 are possible. Basic solutions have pH > 7. pH values greater than 14 are possible. The pH ScaleSearch...
Acids, Bases & pH1 water molecule in 550 million naturally dissociates into a Hydrogen Ion and a Hydroxide IonHydrogen Ion Hydroxide IonAcid BaseH2O H+ + OH-Slide 13The pH ScaleIndicates the concentration of H+ ionsRanges from 0 – 14pH of 7 is neutral...
The scale ranges from 0-14. Litmus paper is an indicator used to tell if a substance is an acid or a base. The colour of the paper matches up with the numbers on the pH scale to indicate what kind of substance is being tested. For example, Vinegar is an acid and measures 2.4 on ...
Acids, Bases and pH Part One What is pH? • A measure of Hydronium Ion (H 3 O + ) concentration in solution • Measured on a scale ranging from 0 – 14 – Acid = <7 – Base = >7 – Neutral = 7, example: pure water What is an Acid? • A substance that produces ...
Acids, Bases, and the pH scale Acids An acid is a compound that releases a proton (a hydrogen ion (H+)) when it dissolves in water. Because of this, most acids are known as “proton donors”. If very many protons (hydrogen ions) are “donated” the effect can be very profound, su...
The pH scale ranges from 0 to 14. The pH of an acid is below 7 and a base is above 7. Anything that has a pH of 7 is classified as neutral. Common household items such as vinegar and bleach give us a clue about the molecules within them based on these classifications. These ...
In cases where the base releases hydroxide ions, these ions bind to free hydrogen ions, generating new water molecules.Figure 1. The pH scale measures the concentration of hydrogen ions (H+) in a solution.The stronger the acid, the more readily it donates H+. For example, hydrochloric acid...
Acidity, Basicity, and pH http://videos./hsw/pounds-ph-scale-and-indicators- Self-Ionization of Water Water acts as both acid and base in same reaction Proceeds minimally to the right H2O (l) + H2O (l) H3O+(aq) + OH-(aq)
LecturePLUS Timberlake4 Some Common Acids HCl hydrochloric acid HNO 3 nitric acid H 3 PO 4 phosphor ic acid H 2 SO 4 sulfur ic acid CH 3 COOH acet ic acid LecturePLUS Timberlake5 Bases Produce OH - ions in water Taste bitter, chalky Are electrolytes Feel soapy, slippery React with acid...