NAROK FORM FOUR DISTRICT MOCK – 2007 233/3 CHEMISTRY PAPER 3 MARKING SCHEME. 1. Table I : School value - 1mk 8cm3 – 9cm3 1mk Decimal / Accuracy 0.1 ( 1mk) Max ( 2mks) Penalise for unrealistic values a) Average volume 8.5 + 8.5 + 8.5 ½ = 8.5 cm3 ½ penalise for missing units 3 b) Moles of solution A 8.5 x 0.25 ½ = 0.002125 ½ moles 1000 c)i) Moles of HCl in 25cm3 of solution D: HCl + NaOH NaCl + H2O
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1.) Sociologists analyze social phenomena at different levels and from different perspectives. From concrete interpretations to sweeping generalizations of society and social behavior. Sociologists today employ three primary theoretical perspectives: the symbolic interactionist perspective‚ the functionalist perspective‚ and the conflict perspective. These perspectives offer sociologists theoretical paradigms for explaining how society influences people‚ and vice versa. The symbolic
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Repressed Memories and Child Abuse Back in the 1990’s‚ it was common for prosecutions to be based on recovery of repressed childhood memories‚ usually reclaimed through therapy. Now‚ in later decades the number of these cases have decelerated‚ as it is unclear whether these memories can be considered reliable. This report is based on the story of the Whitfield’s‚ and how repressed memories of abuse have affected the members of their family. Agnus Whitfield is now 65‚ and has made a career as an English
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What is the Sapir-Whorf hypothesis‚ and how valid is it? Introduction The debate on whether ‘language is the dress of thought’ originates in ancient Greece when Aristotle discussed the possibility that the thinking pattern influences to a certain degree the evolution of language (He‚ 2011: 1). The concept that language is ‘merely a reflection of thought and the objective world’ (He‚ 2011: 1) was re-examined several times throughout history; the conclusions drawn give us a new interpretation of
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False Memories: False memories are memories of events or situations that did not‚ in fact‚ occur. These recollections of past events are unintentionally false. Often times‚ it may result from a questioned phrased differently‚ or a story told often enough that the person begins to believe that it actually happened recalling these events in depth. When asked what happened‚ they will be able to give vivid descriptions and details of what they remember occurred; however‚ in reality‚ these events
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typical person also increased by 4%. ( ____/5) 3. (_____/10 Points) Unemployment a. Define and give examples of the three types of unemployment discussed in class. (_____/5) b. How is the unemployment rate calculated? What is the Natural Rate of Unemployment? Do we want zero unemployment? (_____/5) 4. (_____/15 Points ) Inflation a. Define and identify how to calculate the Consumer Price Index (CPI)? Explain the meaning of the following CPIs relative to a base year. Year 1=90‚ Year 2=100‚ Year 3=125‚ Year 4=150
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but also more advanced ones. World War one was a colossal step forward in terms of modern war. 1. Tanks were first introduced by the British in 1916 during the Battle of the Somme against the Germans 2. Germans introduced submarines as warships in 1914 3. Poison gas introduced by Germans 4. Airplane warfare first used ii. (Analysis) With large armies and navies‚ a country would be more willing to
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Abstract Memory is of which enables us to remember things. The definition of memory is the persistence of learning over time through the storage and retrieval of information. With out memory we wouldn ’t be able to remember many things. For example; language‚ people‚ words and so on. The present might be fresh‚ but the past would be forgotten. People which we know might be considered as a stranger. This paper is a brief look on how memory works encoding. Also‚ on the differences between short
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seriously damage the Republic. Treaty of Versailles was too harsh on Germany and not justified. This essay will argue that the Weimar Republic was able to recover in some ways but still had many problems. It could be argued that the Weimar Republic had recovered because of the Dawes plan. After hyperinflation in 1923 the economy was still very unstable. This meant that Germany had to borrow a lot of money from American in an attempt to stabilize the economy. As the economy now had enough money to pay
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Operating Systems POS Requirements of Memory Management Memory Management is the most highly used resource on your computer; different operating systems all have a different approach on how to use memory and common factors when using memory. Every process needs it to process a code or function. More so memory management allow the operating system to reserve parts of memory to programs when they are requested and complete as many processes into memory. Memory Management has gotten more complicated
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