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Define limiting reagent
Limiting reagent in a reaction is the reactant that is consumed completely. It determines the maximum amount of product that is made.
Define the term concentration
The amount of solute per unit volume solvent
What is percentage yield
Percentage yield is a measure of the extent of a reaction determined by comparing the actual amount to the theoretical amount of product expressed as a percentage.
Define molar mass
The mass in grams of one mole of that substance substance
Define concentration
The amount of solute per unit solvent
Define an acid
An acid is defined as a proton donor
Define a base
A base is defined as a proton acceptor
What is ionization
The reaction of a molecular substance with water to produce ions
Define a strong acid
An acid that ionises almost completely in an aqueous solution
Define a weak acid
A weak acid is an acid that ionises only partially in an aqueous solution
Define a strong base
A base that dissociates almost completely in an aqueous solution
Define a weak base
A base that only ionizes partially in an aqueous solution
Define dissociation
The splitting of an ionic compound into its ions
What are some weak acids names and formula?
HF hydrofluoric acid, H3PO4 phosphoric acid,
Define an endothermic reaction
reactions which transform thermal energy into chemical potential energy
define exothermic reaction
Reactions which transform chemical potential energy into thermal energy
What are some examples of ampholytic/amphoteric substances
H20, HCO3, (COOH)2, CH3COOH
Defined activation energy
The minimum amount of energy needed for a reaction to take place
Define activated complex
high energy unstable state between products and reactants
What is a a catalyst
A substance that increases the rate of a chemical reaction without itself undergoing a permanent change in the reaction
Define heat of reaction
the net change of chemical potential energy of the system
Define an ampholyte
Substance that can act as either acid or base is amphiprotic or ampholyte
What is the formula for sulphuric acid and is it a strong or weak acid ?
H2SO4 it is a strong acid
what is the formula for oxalic acid and is it strong or weak base
(COOH)2 it is a weak acid
Is sodium hydroxide a strong or weak base
NaOH is a strong base
Is calcium hydroxide a strong or weak base
CaOH2 is a strong base
Is ammonia a strong or weak base
NH3 Weak base