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Summary AP Chemistry exam questions and answers
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AP Chemistry exam questions and answers
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AP Chemistry exam questions and answersWhat is a solution? - A homogeneous mixture made up of two or more substances
that do not chemically combine; instead, the substances mix uniformly in the
solution.
What is a solvent? - The substance present in the largest quantity by volume,
usually water.
What is a solute? - The substance that is dissolved in the solvent.
How do you find the empirical formula of a compound? - First, determine mol by
dividing the percent comp or mass of elements by their molar mass, then divide
the mol values by the smallest mol value.
How do you find the molecular formula of a compound? - First, determine the
mass of the empirical formula, then divide the mass of the molecular formula by
the mass of the empirical and finally multiply the empirical formula by the ratio
obtained between the masses.
What is the equation to find percent yield? - (laboratory yield/theoretical yield) *
100 = percent yield
, AP Chemistry exam questions and answers
What is the equation to find percent error? - (|lab value-accepted
value|/accepted value) * 100 = percent error
What is the full electron configuration of Sulfur (S)? - 1s²2s²2p⁶3s²3p⁴
What is the compound name for iron (III) hydride? - FeH₃
What does NH₄OH dissociate into? - NH₄⁺ and OH⁻
List the seven strong acids. - Hydrochloric acid (HCl), Hydrobromic acid (HBr),
Hydroiodic acid (HI), Nitric acid (HNO₃), perchloric acid (HClO₄), chloric acid
(HClO₃), sulfuric acid (H₂SO₄)
List the six strong bases. - Sodium hydroxide (NaOH), Lithium hydroxide (LiOH),
Potassium hydroxide (KOH), Calcium hydroxide (Ca(OH)₂), Strontium hydroxide
(Sr(OH)₂), Barium hydroxide (Ba(OH)₂)
Are compounds of Group 1 metals soluble or insoluble? - Soluble
Are common ammonium ions soluble or insoluble? - Soluble
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