University:
College
Course:
College Chemistry
Academic year:

2022
Views:

249

Pages:

12
Author:

StellarSymphony

Review - Chem 111 eh of the following compounds will produce an acidic solution when dissolved in water? e) NaCN c) K2S03 ft b) Naa04 d) Na20 Which of the following compounds will produce a basic solution when dissolved in water? b) HNOJ c) NH4a d) HBr e) KBr 3) For the equilibrium given below, list the two pairs of base/conjugate acid: HSQJ· + HF __ H2S03 + F" Answer: a) b) 4) Consider a saturated solution of CaF2 (s). Which of the following may take place upoo the answers. addition of Ga(NOJ)2? Circle all corr More caF2 (s) diSSOlves. b) ore caF2 will precipitate . The conce, ,tiatiOi'I of the fluoride ions II decrease. The concentration of ca2+ ions will increase. The concentration of NQJ" will have no effect on the solubility of CaF2 (s). All of the above will happen g) None of (a) to (e) will happen. 5) The equilibrium concentration of HSQJ· is much higher than the equilibrium cone. of S032• in the reaction: HSQJ" + H2of,. s03 2• +H3Q+ List two .29njugate acid Ala� pairs and label each species as str ,r or weaker acid or base. a> b) �so; ;so;�- l)i�1,.Jt\QC..:.d/�A�_t� t\O t- /'1_0 ,"Cit�o.1.<.djwtAIC"�� ? + (a•} + , CQ. (0 ts.> � Ck_ 6) A) Write the equilibrium equation for the solubili'ty of CaCQJ (s) ) � B) Circle all correct answers: The molar solubility of caCQJ(s) in a saturated solution can be decreased by: b) Adding a strong acid /iii')Adding Na2COJ @dding cac12 '"!ffAdding more cac03 (s). 7) Fill in the table given below: Unit cell Number of particies inside the unit cell The coordination number Relative packing efficiency Relative Density Simple cube I 6 .lC) I,\)'( � t Jow-(sr Body centered cube .2 s --w.if. �(� Face•centered cube '-I ' 2. .Ji ,;fus t--l-t, �s/(next page) Hexagonal unit cell 'f I 2. h,s4s f}i1•f!,.i.sf