Chapter 12 & 13 Test Review. Bond, Ionic Bond

Transcription

1 Chapter 12 & 13 Test Review

2 A solid solute dissolved in a solid solvent is an Alloy

3 What is happening in a solution at equilibrium? The Ionic rate of Bond dissolving is equal to the rate of crystallization.

4 Definition: Slightly Dissociated Term: Weak

5 Write the dissociation equation for ammonium sulfate. (NH 4 ) 2 SO 4 (s) 2 NH +1 4 (aq) + SO -2 4 (aq)

6 What is the solubility of NH 4 Cl at 70 C? 60 g of NH 4 Cl in 100g H 2 O

7 When light is shone into a colloid it will scatter, this is known as the. Tyndall Effect

8 90 g of RbCl is dissolved in 100g of water at 10 C. Describe the solution. The solution is supersaturated.

9 What are three ways to increase the rate of dissolving? stirring, heating and increasing the surface area

10 When a solute dissolves and recrystallizes at the same rate, the solution is at Equilibrium

11 A solution containing 40 g of NaCH 3 COO dissolved in 100 g of water is heated from 10 C to 80 C. Describe how the solution would change. The Ionic solution Bond would go from saturated to unsaturated. It could dissolve an additional 110 grams of NaCH 3 COO.

12 Any substance whose water solution conducts electricity is a(n) Electrolyte

13 Is ethanol CH 3 CH 2 OH and water, H 2 O miscible? Why? Yes, both are polar molecules.

14 Rank the following mixtures by particle size from the largest to the smallest. Colloids, Solutions, Suspensions Suspensions, Colloids, Solutions

15 Definition: Containing more solute that the standard amount at that temperature Term: Supersaturated

16 What type of temperature and pressure conditions favor the increased solubility of gas in a liquid? A low temperature and increased pressure of the solute

17 Definition: Liquids that partially or fully dissolve in each other Term: Miscible

18 Give an example of a liquid solute in a liquid solvent. alcohol in water

19 Give an example of a gas solute in a liquid solvent. carbon dioxide in water

20 Is Na 2 S soluble in water? It is soluble.

21 What is the relationship between the solubility of solids and temperature? Ionic As temperature Bond increases the solubility of a solid increases.

22 What is the definition of molarity? moles of solute/liters of solution

23 What is the definition of molality? moles of solute / kilograms of solvent

24 What is the separation of ions that occurs when an ionic compound dissolves? dissociation

25 What is an H + ion bonded to a water molecule to form H 3 O +? hydronium

26 What is the solid product of two solutions? precipitate

27 What is a solution that contains the maximum amount of dissolved solute? saturated solution

28 What is a solution that contains less solute than a saturated solution under the existing conditions? unsaturated solution

29 What is the part of solution that is being dissolved? solute

30 A solution which contains all (or most) of the solute in the form of ions? strong

31 After dissociation the water molecules surround the ions, what is this called? hydration

32 What is a spectator ion? Ionic An ion Bond that doesn t participate in the reaction.

33 Why do ionic compounds in solution conduct electricity The Ionic dissociated Bond ions carry the charge through the solution.

34 How many grams are require to make ml of a M solution of iron III chloride, FeCl 3? 41.2 grams

35 What mass of water must be used to make a 2.17 m solution that contains 6.54 mol Na 2 SO 4? 3.01 kg of water

36 Write the balanced equation and the net ionic equation for the reaction between potassium phosphate and copper II chloride. 2K Ionic 3 PO Bond 4 (aq) + 3CuCl 2 (aq) 6KCl (aq) + Cu 3 (PO 4 ) 2 (s) 3Cu +2 (aq) + 2PO -3 4 (aq) Cu 3 (PO 4 ) 2 (s)

37 How many milliliters of 0.95 M CoCl 2 solution are necessary to make ml of 0.30 M solution of the same solute? 47.4 ml