1. Describe the naming of esters and relate it to the reactants that produced it
the alkanol ends with yl instead fo anol
the alkanoic acid ends with oate instead of oic
e.g propanoic acid + ethnaol->ethyl propanoate + water
2. What indicators would be used in a strong acid weak base
The indicator would be methyl orange with ph range of pH3-4.4
3. Explain what is meant by strong and weak acids in terms of ionisation
A strong acid is one that completly dissociates into hydrogen ions in aqeous solution
e.g HCl + H20 ->Cl^(-1) + H30^(+1)
A weak acid is one that only partially dissociates into hydrogen ions in aqeious solution
e.g CH3COOH + H20 <-> CH3COO^(-1) + H30^(+1)
4. What is the use of acids as food additives
Acids are used as food additves to prevent the growth and reprodcution of dangerious parhtogens and imnhibit the decaya and breakdown of vegetable or foods. The acidic environemtn destroys pathogen or prevent spread. for example vinegar and citric acid used to preserve cucumbers and onions. However also used oit mainatan health such as ascorbic acid or vitamin C
5. Define Le Chateliers principle
Le Chateliers principle states that if the concentration of products and reactants in a chemical system at equilibrium are subjected to a change in conditions, the chemical system wil adjust to re-establish equilibrium in such a way to partially counteract any change such as temp, conc. and pressure/volme.
Question:
1.Describe saponifcation(Industrial chem students)
2. systemic name of vinyl chloride and styrene
3. define polymerisation
3. what is AAS anfd how does it work(i.e wat pricincple it relies on)
4. Describe expereimetn of soft drink decarbonation
the alkanol ends with yl instead fo anol
the alkanoic acid ends with oate instead of oic
e.g propanoic acid + ethnaol->ethyl propanoate + water
2. What indicators would be used in a strong acid weak base
The indicator would be methyl orange with ph range of pH3-4.4
3. Explain what is meant by strong and weak acids in terms of ionisation
A strong acid is one that completly dissociates into hydrogen ions in aqeous solution
e.g HCl + H20 ->Cl^(-1) + H30^(+1)
A weak acid is one that only partially dissociates into hydrogen ions in aqeious solution
e.g CH3COOH + H20 <-> CH3COO^(-1) + H30^(+1)
4. What is the use of acids as food additives
Acids are used as food additves to prevent the growth and reprodcution of dangerious parhtogens and imnhibit the decaya and breakdown of vegetable or foods. The acidic environemtn destroys pathogen or prevent spread. for example vinegar and citric acid used to preserve cucumbers and onions. However also used oit mainatan health such as ascorbic acid or vitamin C
5. Define Le Chateliers principle
Le Chateliers principle states that if the concentration of products and reactants in a chemical system at equilibrium are subjected to a change in conditions, the chemical system wil adjust to re-establish equilibrium in such a way to partially counteract any change such as temp, conc. and pressure/volme.
Question:
1.Describe saponifcation(Industrial chem students)
2. systemic name of vinyl chloride and styrene
3. define polymerisation
3. what is AAS anfd how does it work(i.e wat pricincple it relies on)
4. Describe expereimetn of soft drink decarbonation
