18 Questions
What is the oxidation state of S in SO2?
+4
What type of reaction involves the transfer of electrons?
Redox reaction
What is the formula to calculate the percentage yield of a reaction?
(Actual/Theoretical)(100)
What is the unit of molarity?
moles per liter
What is the formula to calculate the percentage concentration of a solution?
(g solute/100mL solution)(100)
What is the net ionic equation for a reaction involving a strong acid and a strong base?
H+(aq) + OH-(aq) → H2O(l) + Salt(aq)
Why does a weak acid/weak electrolyte remain intact in an acid-base reaction?
It cannot fully dissociate compared to a strong acid
How is the molarity of a solution related to the volume of the solution?
M1V1 = M2V2
What is the oxidation number of hydrogen in most compounds?
+1
What is the oxidation number of oxygen in peroxides?
-1
What is the rule for the sum of oxidation numbers in a species?
The sum of oxidation numbers must be equal to the total charge on the species
What is the general formula for an acid-base reaction?
AB + CD → AD + CB
What is the condition for the best buffer systems?
[HA] = [A-]
What is the purpose of the Henderson-Hasselbalch equation?
To determine the pH of a buffer solution
What is the result when the product of [Ag+][Cl-] is greater than the Ksp in an aqueous solution?
Precipitation occurs
What is the solubility of a substance?
The mass of substance that dissolves to form a saturated solution
What is the significance of the solubility product constant (Ksp)?
It determines the solubility of an ionic compound
What is the condition for equilibrium in a heterogeneous solution?
The product of the ion concentrations is equal to the Ksp
Test your knowledge of oxidation states, redox reactions, and stoichiometry concepts in chemistry. Learn how to identify limiting reactants and understand the basics of synthesis and decomposition reactions.
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