# Chapter 8: Water & Solutions

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

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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