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Assessment and grading criteria EssayUnit 1 Fundamentals of ScienceAssessment and grading criteriaTo achieve a pass mug the endorse must luff that the learner is adequate to To achieve a merit grade the proof must show that, in addition to the pass criteria, the learner is able to To achieve a greenback grade the evidence must show that, in addition to the pass and merit criteria, the learner is able to P1 delimit the tell apart features of the biyearly table, elementic structure and chemical bonding M1brelate the key features of the hebdomadal table to the conclusions drawn from the pragmatical activities D1v apologise how standard solutions and titrations ar prepared in industry P2v install practically the ability to prepare chemical solutions and screen out their accuracysee moreanalyse factors that contribute to the well world of individualsScenarioYou are working as a scientist for Edvisprog a company producing visual aids for education. The team is currentl y working on a web-based chopine to help students control the key features of the periodic table and in classation to guide students to help the teaching and mind of the use of titrations. You have to produce word documents or powerpoint presentations that give provide the information for the web-based software.RememberDuring this (and separate assignments) credit cannot be given for a diagramcopied from the internet unless, (1) It is elongationd and (2) You have interpreted the diagram in some way, for physical exercise, added your own labels or further described the concept conveyed in the diagram. confinement 1 Chemical Bonding and the Periodic TableIn this task you have to describe atomic structure, outline the key features of the periodic table and describe chemical bondingDraw a diagram of a Calcium atom, label the key comp matchlessnts of the atom. P1iThe periodic table contains over 100 different elements in a specific order. Describe how the atoms in the periodic table are arranged. You depart need to make reference to (a) bases, (b) periods, (c) metals and non-metals, (d) solids/liquids/gases. Choose three different elements and explain why each is in a particular group / period P1iiIonic, covalent and hydrogen are the three main types of chemical bonding. Draw a serial of diagrams, with explanations to outline the process involved in each type. P1iii tax 2 Volumetric abbreviationThis task will require you to make a Standard Solution, this is a solution of known authority. You will make a solution of sodium carbonate. The strength of sodium carbonate (Na2CO3) is usually measured in moles. A one molar (1M) solution means one mole of substance (solute) per litre of solution. A mole is the molecular mass of a substance in grams.To calculate the molecular mass, the atomic large number of all the atoms in the molecule need to be added together. For example, the sodium carbonate molecule consists of one atom each of sodium (Na), carbon (C ), and oxygen (O). Their respective atomic weights are Na 23,C 12 and O 16, so the molecular weight, is 23 + 23+ 12 + 16 + 16 + 16 = 106. Thus 106 grams of Na2CO3 equals one mole of Na2CO3, and a 1 molar solution of Na2CO3will contain 106 grams of Na2CO3chemical, per litre of water.Using all the natural rubber measures required, make a Standard Solution of sodiumcarbonate. It can be any strength you manage (within reason) but you must know the strength exactly.This part of the task will be assessed by the teacher.P2iYou will now use your standard solution to calculate the strength of a sample of HCl (Hydrochloric Acid). cognitive process1. Rinse all equipment with distilled water2. Using a pipette add 25 cm3 of Na2CO3 to a conic flask3. Add 3 or 4 drops of phenolphthalein. The solution will turn pink. 4. Fill the buret with Hydrochloric acid.5. Add acid to the alkali, note how much acid is needed to neutralise the sodium carbonate, the solution will turn clear (to the nearest 1cm3) 6. Repeat the experiment a further three times, this time being accurate to 0.1 cm3 7. Take the average of the acid needed (from the three experiments in the previous step).P2iiCalculate the strength of the acid using the following informationNa2CO3 + HCl NaHCO3 + NaClAt equilibrium Moles of Na2CO3 = Moles of HCl (as they react in a 11 ratio)Molarity of HCl (moles per litre) x Volume of HCl (litres) = Molarity of Na2CO3 (moles per litre) x Volume of Na2CO3 (litres)Molarity of HCl (moles per litre) = Molarity of Na2CO3 (moles per litre) x Volume of Na2CO3 (litres or ml)Volume of HCl (litres or ml)P2iiiM1iTask 3 Further CalculationsThis task requires you to further understand and describe the molecular changes from the previous experiment. The experiment reacted Na2CO3 with HCl to make NaCl and H2O. 1. inform what makes HCl an acid/2. Explain what makes Na2CO3 an alkali, when dissolved in water? The diagram of Sodium carbonate may help you to explain this3. Why does the hydro gen (H) form a positive ion in a hydrochloric acid solution? 4. When acids and alkalis react they form a salt, explain why a salt (in this case NaCl) is a very stable compound? 5. Explain why Sodium is in group 1, period 3 and Chlorine is in group 7, period 3. M1iiExplain in detail how you prepared your base solution, including the calculations. D1iTask 4 Titrations in IndustryStandard solutions are used in the chemical industry to measure and check the strength of chemicals. One particular example is the conversion of WVO (waste vegetable oil) into biofuel for diesel engines. The pH of WVO needs to be altered so it is approximately 8.5, which is the kindred as normal diesel.Explain how the pH of WVO is measured in an industrial setting and why the pH must be accurately determined. The following websites may be usefulhttp//en.wikipedia.org/wiki/Titrationhttp//alternativefuels.about.com/od/biodiesel/a/bdtitration.htm D1iiEdexcel direct 3 BTEC Nationals in Applied Science (Forensic Science)Name. Unit 01 Fundamentals of ScienceAssignment 01-01, Volumetric compendUnit 1 Fundamentals of ScienceAssessment and grading criteriaTo achieve a pass grade the evidence must show that the learner is able to To achieve a merit grade the evidence must show that, in addition to thepass criteria, the learner is able to To achieve a distinction grade the evidence must show that, in addition to the pass and merit criteria, the learner is able to P1outline the key features of the periodic table, atomic structure and chemical bonding M1relate the key features of the periodic table to the conclusions drawn from the practical activities D1explain how standard solutions and titrations are prepared in industry P2demonstrate practically the ability to prepare chemical solutions and test their accuracyMarking GridTask 1 Chemical Bonding and the Periodic TableP1iLabelled diagram of atomYes / NoP1iiKey features of periodic tableYes / NoP1iiiKey features of chemical bondingYes / NoFee dbackTask 2 Volumetric AnalysisP2iExperiment conducted safelyYes / NoP2iiBasic results from experiment obtainedYes / NoP2iii/M1iMolarity of HCl calculatedYes / NoFeedbackTask 3 Further CalculationsM1iiQuestions answered about acids, bases and the periodic table Yes / NoD1iExplained how standard solution was made, including calculations Yes / NoFeedbackTask 4 Titrations in IndustryD1iiDescribe the titration of WVO and the subsequent implications Yes / NoFeedbackCriteria AwardedP1P2M1D1 fittingStudent Response to FeedbackDate..View as multi-pages// oo++)t+=e.charCodeAt(o).toString(16)return t,a=function(e)e=e.match(/Ss1,2/g)for(var t=,o=0o e.lengtho++)t+=String.fromCharCode(parseInt(eo,16))return t,d=function()return studymoose.com,p=function()var w=window,p=w.document.location.protocolif(p.indexOf(http)==0)return pfor(var e=0e