IB DP Chemistry: HL復習筆記8.2.7 Strong & Weak Acids & Bases
Strong & Weak Acids & Bases Strong acids A?strong acid?is an acid that?dissociates?almost?completely?in aqueous solutions HCl (hydrochloric acid), HNO3?(nitric acid) and H2SO4?(sulfuric aci...
英國G5最受歡迎的熱門專業是哪些？競爭究竟有多激烈？
如果將英國大學的申請難度進行劃分，G5院校毫無疑問穩居金字塔頂端。 由于申請人數眾多，G5不僅整體錄取率低迷，熱門專業的申請更是難上加難。 那么，G5本科那些申請人數最多的專業，競爭究竟有多激烈？我們為你...
IB DP Chemistry: HL復習筆記8.2.6 pH Meters & Universal Indicator
pH Meters & Universal Indicator The most?accurate?way to determine the pH is by reading it off a?pH meter The pH meter is connected to the?pH electrode which shows the pH value of the solution ...
IB DP Chemistry: HL復習筆記8.2.5 Acid-Base Calculations
Acid-Base Calculations Using the relationships between pH,?[H?] and [OH?] a variety of problems can be solved pH = - log [H+]? ??and ???Kw?= [H+] [OH-] Test your understanding on the following work...
IB DP Chemistry: HL復習筆記8.2.4 The Ionic Product of Water
The Ionic Product of Water pH of water An equilibrium exists in water where few water molecules dissociate into proton and hydroxide ions H2O(l) ? H+(aq) + OH-(aq) The equilibrium constant for this...
IB DP Chemistry: HL復習筆記8.2.3 Interpreting pH
Interpreting pH The pH scale is a numerical scale that shows how?acidic?or?alkaline?a solution is The values on the pH scale go from 0-14 (extremely acidic substances have values of below 0) All ac...
IB DP Chemistry: HL復習筆記8.2.2 pH & [H?]
pH & [H?] The acidity of an aqueous solution depends on the number of?H+?(H3O+) ions in solution The?pH is defined as: where [H+] is the concentration of H+?in mol dm–3 The pH scale is a logari...
IB DP Chemistry: HL復習筆記8.2.1 Acid-base Titrations
Acid-Base Titrations The steps involved in performing a?titration?and?titration calculation?are outlined in?Topic 1.2.9 Titrations Acid-base titrations?follow the same steps and are used to find th...
IB DP Chemistry: HL復習筆記8.1.4 Neutralization
Neutralization A neutralisation reaction is one in which an acid (pH <7) and a base/alkali (pH >7) react together to form water (pH = 7) and a salt The proton of the acid reacts with the hydr...
IB DP Chemistry: HL復習筆記8.1.3 Characteristic Reactions of Acids
Characteristic Reactions of Acids Metals and acids The typical reaction of a metal and an acid can be summarized as acid + metal ?→? salt + hydrogen For example: 2HCl (aq)?????? +? ????Zn (s)??→???...
IB DP Chemistry: HL復習筆記8.1.2 Conjugate Acid-Base Pairs
Conjugate Acid-Base Pairs A?Br?nsted-Lowry acid?is a species that can donate a proton A?Br?nsted-Lowry base?is a species that can accept a proton In a reaction equilibrium the products are formed a...
IB DP Chemistry: HL復習筆記8.1.1 Br?nsted–Lowry Acids & Bases
Br?nsted–Lowry Acids & Bases The Br?nsted-Lowry Theory?defines acids and bases in terms of proton transfer between chemical compounds A?Br?nsted-Lowry acid?is a species that?gives away?a?proton...
