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Unformatted text preview: hydrogen bonds form between water molecules and hydrophilic substances . 11. The high heat of vaporization of water accounts for evaporative cooling . 12. Water has a high specific heat, because hydrogen bonds must be broken to raise its temperature . 13. A solution at pH 7 is considered neutral because its hydrogen ion concentration is equal to its hydroxide ion concentration . 14. A solution with a pH of 2 has a hydrogen ion concentration that is 100 times the hydrogen ion concentration with a pH of 4. 15. The following cannot function as a buffer: NaOH and NaCl , while phosphoric acid is a buffer. 16. NaOH and HCl react to form Na + , Cl-, and water. Na + and Cl-are electrolytes. 17. Avogadros number is the number of particles contained in one mole of a substance, and one mole of 12 C has a mass of 12 grams. 1...
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This note was uploaded on 09/29/2010 for the course BIO 1 taught by Professor Na during the Fall '10 term at Temple.
- Fall '10