Chapter 8: Water & Solutions

Flashcards by ashleycamacho98, updated more than 1 year ago
Created by ashleycamacho98 almost 6 years ago


Flashcards on Chapter 8: Water & Solutions, created by ashleycamacho98 on 05/22/2015.

Resource summary

Question Answer
Solution A homogeneous mixture (uniform, 1 phase) of 2 or more substances
Concentration The ratio of quantity of solute to solvent; usually quantity of solute per unit volume of solution
Concentrated Solution Solution with a relatively large quantity of solute dissolved per unit volume of solution
Diluted Solution Solution with a small quantity of solute dissolves per unit volume of solution
Alloy Solution of two or more metals
Aqueous Solution Solution in which water is the solvent. All are transparent, can be colored or colorless
Hydration Ions surrounded by H2O molecules -> stabilize ions
Dissociation Separation of ions that occurs when an ionic compound dissolves
Miscible Able to mix to form a solution; usually describing liquids that mix with each other in all proportions to form a solution
Immiscible Unabke to mix to form a solution; usually describing liquids that do not readily mix
LDF Weakest intermolecular force and no attraction between water molecules
Surfactants Compound that can reduce the surface tension of a solvent; surfactants have both a hydrophobic part and a hydrophilic part
Solubility Quantity of solute that can dissolve in a given quantity of solvent
Saturated solution Solution that contains the maximum quantity of solute at a given temperature and pressure
Unsaturated Solution Solution in which more solute can dissolve at a given temperature and pressure
Super Saturated Solution Solution that contains more than the maximum quantity of solute it should at a given temperature and pressure
Amount Concentration The amount (in moles) of solute dissolved per litre of solution; unit symbol is mol/L
Stock Solution Concentrated solution that is used to prepare dilute solutions for actual use
Concentration formula C = n ÷ V
Standard Solution Solution for which the precise concentratiom is known
Dilution Process of reducing the concentrations of a solution; usually done by adding more solvent
Dilution equation C1V1 = C2V2
Percentage Volume ÷ Volume (%V/V) Cv/v = (V solute ÷ V solution) × 100%
Percentage Weight ÷ Volume (%W/V) Cw/v = (m solute ÷ V solution) × 100%
Percentage Weight ÷ Weight (%W/W) Cw/w = (m solute ÷ m solution) × 100%
Parts per million (ppm 1: 10^6) Cppm = (m solute ÷ m solution) × 10^6 ppm
Parts per billion (ppb 1:10^9) Cppb = (m solute ÷ m solution) × 10^9 ppm
Parts per trillion (ppt 1:10^12) Cppt = (m solute ÷ m solution) × 10^12 ppm
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