Question

30 Chapter 4 Water SELF-TEST Do You Know the Terms? ACROSS Describes a solution with a IH jor Hydro molecules can form energetically favorable interactions with 6. Water is often referred to as the because of its ability to hydrate molecules and screen Describes the concentration (and therefore of OH in an aqueous 8. The ion product of water, it is 1 x M in aqueous solutions at 25 C. 9, The describes the relationship between pH and the pk.of a buffer. 10. The equilibrium constant for the reac- tion HA H* A is also called the 14- Hydro. the entropy of an aqueous system by causing water molecules 15. The numbers 1, 10, 100, 1000 are placed at equal intervals on a 16. Reaction in which two reactants com- bine to form a single product with the 18. A plot of pH vs OH equivalents added is a 19. Weak interactions that are crucial to the structure and 4- HaPO: H Po describes a buffer 21. Describes a solution in which IOH Iis greater than Compound containing both polar and nonpolar regions. 9. electrostatic interactions between the hydrogen 22. A mixture of a weak acid and its conjugate base. and oxogen atoms adjacent 24. Enzymes show maximum activity at a words) 25. HA is a proton 12. Covalent bond breakage by the addition of water 26. The point in a reversible chemical reaction at which the 13, Water molecules readily dissolve compounds such as rate of product formation equals the rate of product NaCl because they screen interactions breakdown to the starting reactants. between Na and Cl 27. A is a proton. i. pH at which IHAcl- Ae 17. Haco, H' Hcos describes a buffer radius is approximately twice the dis- 20. Describes a solution in which IH lis greater than 2. Stable structures formed by lipids in water, which are 23. Noncovalent bonds have weaker bond than held together by hydrophobic interactions.

Answer 1

Across:

3) alkaline

4) Hydrophobic

6) universal solvent

7) pH

8) The ionic product of water is Kw

9) Henderson–Hasselbalch equation

pH = pKa + log [salt] / [acid]

10) Dissociation constant

Ka = [H+] [ A-] / [HA]

14) Hydrophilic

15)

16) condensation

18) Titration curve

19) Non covalent (Van Der wall)

21) Basic solutions have [OH-] > [H+] , pH > 7

22) Buffer

24) Optimum

25) Donor (acids are proton donor)

26)Equilibrium

27) Acceptor

Down

1)

2)

4) Phosphate

5) Amphiphiles

9) HB (Hydrogen bond)

11) Soluble

12) Hydrolysis

13) ionic

14) pKa [From buffer equation , pH = pKa + log [salt] / [acid]]

17) carbonate

20) acidic