L22-Chemical_Reactions_and_Stoichiometry

L22-Chemical_Reactio - Part III Chemical Reactions and Stoichiometry Solution and Gas Stoichiometry Acid Base Reactions strong acid strong base = a

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Part III: Chemical Reactions and Stoichiometry Solution and Gas Stoichiometry Acid- Base Reactions strong acid + strong base = a salt + water HCl(aq) + NaOH(aq) → NaCl(aq) + H 2 O(l) HNO 3 (aq) + NaOH(aq) → NaNO 3 (aq) + H 2 O(l) H 2 SO 4 (aq) + Ca(OH) 2 (aq) → CaSO 4 (aq) + 2H 2 O(l) Acid- Base Reactions neutralization: reaction between an acid and a base the acid “uses up” the base or the base “uses up” the acid H 2 SO 4 (aq) + Ca(OH) 2 (aq) → CaSO 4 (aq) + 2H 2 O(l) ☛ 1 mole of calcium hydroxide is required to neutralize 1 mole of sulfuric acid ☛ 1 mole of sulfuric acid is required to neutralize 1 mole of calcium hydroxide 1 2 3 Acid- Base Reactions H 2 SO 4 (aq) + Ca(OH) 2 (aq) → CaSO 4 (aq) + 2H 2 O(l) ☛ How many milliliters of 0.038M sulfuric acid is required to completely neutralize 20 ml of 0.60M calcium hydroxide? 1. What are we looking for? ✓ ml H 2 SO 4 2. What are we starting with? ✓ concentrations of H 2 SO 4 and Ca(OH) 2 Acid- Base Reactions H 2 SO 4 (aq) + Ca(OH) 2 (aq) → CaSO 4 (aq) + 2H 2 O(l) ☛ How many milliliters of 0.038M sulfuric acid is required to completely neutralize 20 ml of 0.60M calcium hydroxide? 3. What relationships do we have to work with? ✓ 1 mole H 2 SO 4 required to neutralize 1 mole Ca(OH) 2 ✓ the number of moles of H 2 SO 4 in 1 liter of H 2 SO 4 (aq) and the number of moles of Ca(OH) 2 in 1 liter of Ca(OH) 2 (aq) Acid- Base Reactions H 2 SO 4 (aq) + Ca(OH) 2 (aq) → CaSO 4 (aq) + 2H 2 O(l) ☛ How many milliliters of 0.038M sulfuric acid is required to completely neutralize 20 ml of 0.60M calcium hydroxide? 1. Convert ml of Ca(OH) 2 to L ✓ I chose to start with Ca(OH) 2 because it is my known reagent. 20 ml of 0.60M Ca(OH) 2 (aq) × 1 L of 0.60M Ca(OH) 2 (aq) 1000 ml of 0.60M Ca(OH) 2 (aq) = 0.020 L of 0.60M Ca(OH) 2 (aq) ✓ I chose to do this conversion to liters because I want to keep my units consistent. I’m starting with my Ca(OH) 2 in M which is moles per liter so I decided to start by converting my starting volume of Ca(OH) 2 to liters . 4 5 6 Acid- Base Reactions H 2 SO 4 (aq) + Ca(OH) 2 (aq) → CaSO 4 (aq) + 2H 2 O(l) ☛ How many milliliters of 0.038M sulfuric acid is required to completely neutralize 20 ml of 0.60M calcium hydroxide?...
View Full Document

This note was uploaded on 09/24/2009 for the course CHEM 333 taught by Professor Baird during the Spring '09 term at UC Davis.

Page1 / 9

L22-Chemical_Reactio - Part III Chemical Reactions and Stoichiometry Solution and Gas Stoichiometry Acid Base Reactions strong acid strong base = a

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online