Chm Exam

DEPARTEMENT OF CHEMISTRY DEPARTMENT CHEMIE DATE / DATUM: TIME / TYD: adjudicate / PUNTE: 2008.05.30 120 min 80 EXAMINATION / EKSAMEN Internal quizzers / intern Eksaminatore: impertinent Examiner / Eksterne Eksaminator: Surname and Initials Van en Voorletters jot Handtekening assimilator number Studentenommer Marks / Punte wonder 1 / Vraag 1 scratch A Afdeling A head banter 2 / Vraag 2 Question 3 / Vraag 3 Question 4 / Vraag 4 Question 5 / Vraag 5 Questtion 6 / Vraag 6 variance B Afdeling B Total / Totaal Section A / Afdeling A: book of instructions / Instruksies 5 5 7 6 13 9 38 80(+3 bonus) Examiner / Eksaminator 1. Answer all questions in ink. Answers in pencil lead not be marked. Beantwoord alle vrae in ink. Antwoorde in potlood sal nie nagesien word nie. 2. inactive calculators may be used. Geluidlose sakrekenaars powder store gebruik word. 3. Do not use Tipp-Ex or any akin(predicate) liquid paper point of intersection on your paper. Answers th at should not be marked must be clearly indicated. Geen Tipp-Ex of soortgelyke vloeibare papiermiddels mag op slide by antwoordstel gebruik word nie. Antwoorde wat nie nagesien moet word nie, moet duidelik doodgetrek word. 4. All cellphones must be switched off. Alle selfone moet afgeskakel wees.

1 Section A / Afdeling A: Show all calculations / Toon alle berekeninge Question 1/ Vraag 1 [5] Fluorocarbonyl hypofluorite has the composition 14.6% C, 39.0% O, and 46.3% F. If the seawallar mass of the compound is 82 g/mol, determine the molecular formula of the compound. Fluoorkarbonielhipofluoriet bestaan uit 14.6% C, 39.0% O, en 46.3% F. In spendn pa! ss by molekulêre massa van die verbinding 82 g/mol is, bepaal die molekulêre formule van die verbinding. Question 2/ Vraag 2 [5] Silver nitrate is added to a 25 cm3 sample of hydrochloric acid. A white set up of silver chloride is then filtered off. If the run dry precipitate weighs 0.3537 g, determine the pH of the hydrochloric acid solution. Silwernitraat word by 25 cm3 soutsuur oplossing gevoeg. n...If you want to get a full essay, fiat it on our website: BestEssayCheap.com

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