Function of citric acid

Answer 1

Citric acid is a weak organic acid that has many uses in relation to our daily lives. For e.g. citric acid is....

• A preservative- it is added to food to keep them preserved and protects against mould.
• It is used to add a tangy taste to food- Sometimes food need that extra bit of a tang to balance out the flavours, so citric acid is a excellent use in this situation
• It is used in health-care industry- It is used to treat alcoholic and used to prevent blood clotting in surgeries
• It is used in Photography- It allows the pictures to lighten in a dark room.

It is mostly found in lemons and Oranges as well know from the taste.

Answer 2

This acid is found and used everywhere from cokes to blueprints, to candy to helping clean up our environment because it is so easy to react and because of it's acidic properties. Since citric acid is an acid and a property of acid is a sour taste, citric acid is added to a lot of beverages and medications. Its salt, sodium citrate, is another additive used in sodas. It is also used to control acidity in cookies, chocolates, cakes, and butter.

Answer 3

• Citric acid: (1,2,3-tricarboxy-propan-2-ol) 'tricarboxylic hydroxy-propane acid', weak,
• up to 8% in citric juices.

  (0.005 mol/L for oranges and grapefruits to 0.30 mol/L in lemons and limes)

  pH in lemons < 2

• Chemical formula: C6H8O7
• Molar mass 192.1 g/mol
• pKa1=3.15

  pKa2=4.77

  pKa3=6.40

• Melting point 153oC

Answer 4

Citric acid is added to certain foods to improve their stability in metal containers. Industrially, it is used as a water conditioner, cleaning and polishing agent, and chemical intermediate.

Answer 5

citrus fruits,tomatoes,cheese,Grape Juice,soda,tropical fruits berries lemons,oranges,limes,jelly,and apples.

Answer 6

Citric acid is a weak acid which your body uses anyway in the "citric acid cycle" (a main part in the cell respiration process).

Answer 7

Make things taste sour.