Chemical reactions
This is a lab report homework. But we can choose to just research the steps/procedure and as well as the results of the 3 different reactions. The guideline is shown below
Guidelines
Guidelines are given below, you need to make detailed plan and your step by step working procedure before starting your process (vour actual step by step procedures need to be present in your report), making sure you don’t miss any safety measure
Acid base reaction
Vinegar is aqueous solution of acetic acid, baking soda is sodium bicarbonate. The reaction of the two is acidbase reaction, will produce water and carbon dioxide will be produced during the reaction. Carry out this reaction at aquantity of your choice (to need too much forwe only need to observe the phenomena).
What you needto observed and record include all you observe when the two being mixed, until everything is complete, the quantity you used and the time consumed
Oxidation reduction reaction
The chemistry of candle material is hydrocarbon, with the chemical formular of C.H2+2
Assumingthenumber of carbon in common candle wax is 25, the reaction with oxygen produce water and carbondioxide. Inthe reaction, wax is being oxidized, and oxygen is being reduced, formation of the two products
Your prove of oxidation and formation of products can be following: using a toll enough glass cup (and short enough piece of candle) sothe glass covers the candle easily with extra space above the candle. Put the glass above the candle when the candle is burning, the formation of water will condense at the bottom of the glass (make sure the glass is cool). Then cover the candle withthe glass whenthe candle is placed on a flat surface so the glass seals the air path, when the oxygen inside of the glassis consumed, the burning candle will stop burning due to lack of oxygen.
Record allyou observe, You also need to describe all vour observation in text, and explain your understanding.
Precipitation reaction
The suggested reaction is not exactly normal precipitation reaction, but is a similar reaction process. The normal precipitation reactions are inorganic reactions, which is not convenient for home labs. The nature of precipitation reactionis the formation of the formation of low solubility substances which precipitate out fromthe solution. This suggested reaction is using milk and vinegar, the processwill cause denature of proteinin milk, then polymerize to form large polymeric molecules which are not soluble in water, so precipitate out as solid
Guideline of precipitation reaction
Add one cup of milk into appropriately sized pot, heat it slowly on stove, keep stirring to prevent the milk from local boiling and running out. Keep heating until 180F, then remove from the stove, add four to five teaspoons of vinegar, keep stirring for one more minute, curds (Solid clumps) will form in liquid (whey). Turn the stove off and wait untilit completely cool. Now solidcurds forms due to denature of protein in milk, then polymerized to form large molecules which become solid.
Safety
This assignment involves heating using stove and flame (burning candle). Analyze the potentialof safety risks and apply safety measures according ly. Don’t forget other potential safety risks involved in the entire processes
Report/reaction equations (for first two reactions)
This is a benchtopwork assignment, please write your lab report infullreport format. Make sure you present balanced reaction equations for acid base and oxidation reduction reactions. No balanced reaction equation is required for the milk reaction, but details description and your understanding of the process should be present as much as you can.
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