Wawa!
Bond...Chemical Bond
Graph
Focusing
007
100
Water is known as the _____ ______ because it can dissolve so many substances.
Universal Solvent
100
Which bond has an EN difference of 0?
Non-Polar Covalent.
100
A solution that contains 62 grams of KNO3 at 40 C is described as:
Saturated.
100
A solution has 45 g of sugar dissolved in 150 grams of water. What is the % solution?
23.08%
100
What kind of bond is the following and why?
Cl-Cl
Non-polar, the same non metal.
200
Water is most dense in what state of matter?
Liquid
200
Which bond evaporates the most easily at room temperatures?
Nonpolar Covalent
200
A solution that contains 40 grams of NaCl at 20 C is described as:
Supersaturated.
200
If 3.4 moles of KBr dissolved in 400 mL of solution, what is the molarity?
8.5 M
200
What kind of bond is Na-Cl and why?
Ionic, metal and non metal
300
The solubility of solids in water _____ as temperature increases.
Increases.
300
Which bond has extremely high MP/BP?
Ionic.
300
At what temperature can you dissolve 45 g of KCl in 100 g water to make a saturated solution?
65 C
300
What is the molarity of a solution that contains 44 g of NaCl in 550 mL of solution?
1.37 M
300
What kind of bond is the following and why?
Ag-Ag
Metallic, two metals.
400
Water's unique properties are caused by the strong ____ _____ between the molecules.
Hydrogen Bonds
400
Rate the following bonds by decreasing interparticle forces:
Nonpolar, Polar, Ionic, Metallic
Ionic, Metallic, Polar, Nonpolar
400
How many grams of NaNO3 would you need to make a saturated solution in 333 g water at 10 C?
260-270 g NaNO3
400
How many grams of H2SO4 are needed to make 250 mL of a 0.5 molar solution?
12.26 g H2SO4
400
Determine the types of bonds and the type of molecule of the following:
Polar Bonds, Non-Polar Molecule
500
Water is a _____ molecule. It has a partial _____ charge on the hydrogen and a partial ___ charge on the oxygen.
Polar, +, -.
500
What do we call substances that conduct electricity in water?
Electrolyte
500
How many grams of water are needed to make a saturated solution with 26.4 g NH4Cl at 70 C?
45.5 g H2O
500
Will the molarity of a solution change if you test 10 mL of it compared to 20 mL? Explain.
No because the proprotions of moles to volume does not change.
500
Determine the types of bonds and the type of molecule of the following:
Polar bonds, Polar Molecule