Solution Stoichiometry-1

Solution Stoichiometry-1 - Ionic compounds dissolve better...

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Solution Stoichiometry Or: Why knowing how to calculate molarity can help medical doctors to not kill patients.
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What’s a solution? (it’s an answer to a problem, duh!) Not quite – a solution is a homogeneous mixture that includes a solute and a solvent The solute is the chemical that is in a smaller quantity and is dissolved in the solvent The solute is usually a solid The solvent is almost always a liquid
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Common Solutions Hydrochloric acid we used in the rocket lab is a solution HCl when it is NOT in water is not called hydrochloric acid, instead NOW is when we use the name “hydrogen chloride” When hydrogen chloride is dissolved in water, we get hydrochloric acid Any homogeneous mixture where a solid dissolves into a liquid is a solution
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Solubility You already know that most ionic compounds dissolve in water… What affects solubility??? Type of solvent Organic compounds as solutes dissolve better in organic solvents like oils alcohols
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Unformatted text preview: Ionic compounds dissolve better in water since it is polar LIKE DISSOLVES LIKE Can a solute stop being soluble? Yes Just like a container can run out of space for storage, a solvent can run out of space to store solute This is called saturation Under saturation Super saturation How do we measure saturation? Quantity of the solute is measured in moles (mol) Quantity of the solvent is measured in liters (L) In order to determine how much solute is dissolved in a solution we use the metric (measurement) known as MOLARITY Understanding Molarity 58 grams of NaCl (1 mole of NaCl) 1 liter of water Calculating Molarity Molarity (M) is a measure of concentration (i.e. how much of something within a given amount of space) n = # of moles of solute V = volume of solvent (in liters) M = n / V The unit for molarity is moles per liter (mol/L)...
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Solution Stoichiometry-1 - Ionic compounds dissolve better...

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