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Worksheetsexample exam for 4th exam
Total questions: 28
Worksheet time: 57mins
What is the molarity of a 0.5L sample of a solution that contains 60.0 g of sodium hydroxide (NaOH)
0.8 M
1.5M
3.0M
6.0M
Which of the following types of solutions has more room to dissolve solute?
supersaturated
saturated
unsaturated
What happens to acids when they react to metals?
Produce Oxygen gas
Helium Gas
Hydrogen gas
Which are more corrosive with metals?
Acids
Bases
Both are corrosive
Which are slippery when touched?
Acids
Bases
What would the expected pH of a cola be?
2.5 - 3.5
7
8-9
Which of the following are properties of acids?
They conduct electricity when dissolved in water
They taste sour
They react with metals to produce hydrogen gas
All of the answer choices are correct
If the substance is neutral, what would the pH be?
3
5
7
9
11
_______ are corrosive substances characterized as having a strong smell, a sour taste, and a _______.
What is the molarity of a solution containing 4 moles of KCl in 2.5 L of solution?
1.6 M
0.63 M
10 M
2.6 M
Which solution is more concentrated?
Solution 1:
500 mL of water
100 g of salt
Solution 2:
500 mL of water
90 g of salt
Solution 1
Solution 2
They have the same concentration
I have no idea
write defination of Molarity
write properties of bases
Acids release what into a solution?
H+ ions
Hydroxide Ions (OH-)
water
salt
HI + H2O --> H3O+ + I-
Is HI and acid or base?
acid
base
no way to tell
NaOH + H20 --> Na+ + OH-
Is NaOH and acid or base?
acid
base
no way to tell
Which of the following substances are considered ACIDIC? (Select all that apply)
orange juice
soap
sulfuric acid
gastric acid
Which of the following substances are considered BASIC? (Select all that apply)
bleach
sea water
baking soda
lemon juice
The conjugate base of H2SO4 is ___.
H2SO3
HSO4-
H3SO4+
SO4-2
In the reaction represented by H2C2O4+CH3NH2 → HC2O4−+CH3NH3+, Which of these is a conjugate acid to the base CH3NH2 ?
None
H2C2O4
CH2NH3+
HC2O4−
