ACIDS, BASES, & NEUTRALS
September 20, 2010
Acids, Bases, and Neutrals
Are common house-hold products pHs balanced and neutral?
pH measures how acidic or alkaline a solution is. Its concept was introduced in 1909 by biochemist Soren Sorensen. The scale ranges from 0-14. Solutions that range from 0 to 6 are considered to be Acidic. Solution that’s on the Acidic end of the scale is low in ph, high in hydrogen ion, and low in hydroxyl ions. An acid have a sour taste, reacts with metal, are corrosive, and are considered an electrolyte because it conduct an electrical charge. Examples of acid are hydrochloric acid, citric acid and vinegar. Solutions that are Bases on the scale have a pH ranging from 8-14. Bases are high in pH, low in hydrogen ion and high in hydroxyl ion. Bases have a bitter taste and a slippery feel. They dissolve in water and are also an electrolyte. Examples of bases are sodium hydroxide, and cleaning produces. Solutions that are Neutral have an equal amount of hydrogen ion and hydroxyl ion. An example of this is blood.
It is assumed that products 1-2 are acids, product 3-8 are neutrals and products 9-20 are bases
ACIDS| NEUTRALS| BASES|
1. LIME JUICE| 3. OCEAN SUNBLOCK| 9. O.O SHAMPOO|
2. GOGURT| 4. CETAPHIL| 10. BABY WASH|
| 5. AVEENO| 11. COLOR SHAMPOO|
| 6. OLAY COMPLETE| 12. NEUTROGENA |
| 7. B.B LOTION| 13. COLGATE |
| 8. SHAVING CREAM| 14. VICKS|
| | 15. ALCHOL|
| | 16. PURELL|
| | 17. CAR POLISH|
| | 18. MR.CLEAN|
| | 19. LYSOL|
| | 20. BLEACH|
1. GLOVES 2. CHEMISTRY PLATES 3. GOGGLES
4. PH TEST STRIPES 5. PENCIL 6. PAPER 7. NAPKIN 8. PH DETECTION WHEEL
1. Gather above supplies.
2. Put on gloves and goggles
3. Decide among your lab partner what 20 produces will be tested. 4. Create a 3 column chart and label each column as acid, base, and...