IB DP Chemistry: HL復(fù)習(xí)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(fù)習(xí)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(fù)習(xí)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(fù)習(xí)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(fù)習(xí)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(fù)習(xí)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...
A-level人文學(xué)科有哪些？人文學(xué)科重要嗎？
A-level人文學(xué)科重要嗎？ 重要！ A-level人文學(xué)科雖然沒有常規(guī)科目選的人多，但在申請(qǐng)大學(xué)時(shí)很多專業(yè)是有指定要求的。 A-level心理學(xué) 大學(xué)心理學(xué)學(xué)位不要求必須學(xué)習(xí)過A-level Psychology。很多專業(yè)要求一門scienc...
IB DP Chemistry: HL復(fù)習(xí)筆記7.1.6 Catalysts & Equilibrium
Catalysts & Equilibrium Changes in concentration If all other conditions stay the same, the equilibrium constant?Kc?is?not affected?by any changes in concentration of the reactants or products ...
牛津物理專業(yè)入學(xué)考試PAT應(yīng)該如何準(zhǔn)備？面試入圍分?jǐn)?shù)線是多少？
每一位申請(qǐng)牛津大學(xué)physics或者physics and philosophy的學(xué)生，都必須參加物理能力測(cè)試PAT，無一例外。這是一個(gè)2小時(shí)的測(cè)試，評(píng)估學(xué)生在物理和數(shù)學(xué)方面的能力，是牛津大學(xué)與CAAT合作管理的考試。 2022年的考試日...
