Stoichiometry and molarity practice November 15, 2017 Stoichiometry and molarity practice Equilibrium Learning Target: I CAN calculate molar ratios to determine limiting reactant, concentration, and amount of product formed through stoichiometry and dilutions

November 15, 2017 Do Now (4 min) Learning target: I CAN Calculate molar ratios to determine limiting reactant, concentration, and amount of product formed through stoichiometry and dilutions Answer on your Do Now Sheet: A 100 mL 0.2M solution is diluted to a final volume of 750 mL. What is the final concentration? Learning Target: I CAN calculate molar ratios to determine limiting reactant, concentration, and amount of product formed through stoichiometry and dilutions

announcements November 15, 2017 Lab 4 – Due Tuesday 11/21 Test corrections – complete on Wednesday, November 15 Afterschool tutoring – every Wednesday 3 -4 PM Marking period final – Monday 11/27 (Both periods) Learning Target: I CAN calculate molar ratios to determine limiting reactant, concentration, and amount of product formed through stoichiometry and dilutions

Molarity (part A) November 15, 2017 Molarity, M: a unit to measure concentration 𝑀= 𝑚𝑜𝑙𝑒𝑠 𝑜𝑓 𝑠𝑜𝑙𝑢𝑡𝑒 𝐿𝑖𝑡𝑒𝑟𝑠 𝑜𝑓 𝑠𝑜𝑙𝑢𝑡𝑖𝑜𝑛 Part A, Problem 1: Calculate the molarity of a solution prepared by dissolving 11.5 g of solid NaOH in enough water to make 1.50L of solution. Learning Target: I CAN calculate molar ratios to determine limiting reactant, concentration, and amount of product formed through stoichiometry and dilutions

Molarity (part A) November 15, 2017 Molarity, M: a unit to measure concentration 𝑀= 𝑚𝑜𝑙𝑒𝑠 𝑜𝑓 𝑠𝑜𝑙𝑢𝑡𝑒 𝐿𝑖𝑡𝑒𝑟𝑠 𝑜𝑓 𝑠𝑜𝑙𝑢𝑡𝑖𝑜𝑛 Part A, Problem 2: Give the concentration of each type of ion in the following solution: 0.50 M Co(NO3)2 and 1M Fe(ClO4)3. WRITE DISSOCIATION REACTIONS FIRST!! Then use stoich Learning Target: I CAN calculate molar ratios to determine limiting reactant, concentration, and amount of product formed through stoichiometry and dilutions

Molarity (part A) In pairs, try problems 3 - 5 (10 minutes) November 15, 2017 Molarity (part A) Molarity, M: a unit to measure concentration 𝑀= 𝑚𝑜𝑙𝑒𝑠 𝑜𝑓 𝑠𝑜𝑙𝑢𝑡𝑒 𝐿𝑖𝑡𝑒𝑟𝑠 𝑜𝑓 𝑠𝑜𝑙𝑢𝑡𝑖𝑜𝑛 In pairs, try problems 3 - 5 (10 minutes) Learning Target: I CAN calculate molar ratios to determine limiting reactant, concentration, and amount of product formed through stoichiometry and dilutions

Molarity in dilutions (part B) November 15, 2017 Molarity in dilutions (part B) Molarity, M: a unit to measure concentration 𝑀= 𝑚𝑜𝑙𝑒𝑠 𝑜𝑓 𝑠𝑜𝑙𝑢𝑡𝑒 𝐿𝑖𝑡𝑒𝑟𝑠 𝑜𝑓 𝑠𝑜𝑙𝑢𝑡𝑖𝑜𝑛 m1v1 = m2v2 Part B, Problem 1: How would you dilute 16M sulfuric acid to 1.5L of 0.10 M sulfuric acid solution? Learning Target: I CAN calculate molar ratios to determine limiting reactant, concentration, and amount of product formed through stoichiometry and dilutions

Molarity in dilutions (part B) November 15, 2017 Molarity in dilutions (part B) Molarity, M: a unit to measure concentration 𝑀= 𝑚𝑜𝑙𝑒𝑠 𝑜𝑓 𝑠𝑜𝑙𝑢𝑡𝑒 𝐿𝑖𝑡𝑒𝑟𝑠 𝑜𝑓 𝑠𝑜𝑙𝑢𝑡𝑖𝑜𝑛 m1v1 = m2v2 In pairs, complete problems 2 – 4 (15 min) Learning Target: I CAN calculate molar ratios to determine limiting reactant, concentration, and amount of product formed through stoichiometry and dilutions

Stoichiometry in solutions (part c) November 15, 2017 Stoichiometry in solutions (part c) 1. Identify the species present in the combined solution, and determine what reaction occurs 2. Write the balanced net ionic equation for the reaction 3. Calculate the moles of reactant 4. Determine which reactant is limiting 5. Calculate the moles of product or products, as required 6. Convert to grams or other units, as required 1. Calculate the mass of solid NaCl that must be added to 1.50 L of 0.100 M AgNO3 solution to precipitate all the Ag+ ion in the form of AgCl. Learning Target: I CAN calculate molar ratios to determine limiting reactant, concentration, and amount of product formed through stoichiometry and dilutions

Stoichiometry in solutions (part c) November 15, 2017 Stoichiometry in solutions (part c) 1. Identify the species present in the combined solution, and determine what reaction occurs 2. Write the balanced net ionic equation for the reaction 3. Calculate the moles of reactant 4. Determine which reactant is limiting 5. Calculate the moles of product or products, as required 6. Convert to grams or other units, as required Complete problems 2 – 6 in PAIRS Learning Target: I CAN calculate molar ratios to determine limiting reactant, concentration, and amount of product formed through stoichiometry and dilutions

Remainder for homework November 15, 2017 Remainder for homework Complete the remainder of the worksheet for homework – due thursday, November 16 Learning Target: I CAN calculate molar ratios to determine limiting reactant, concentration, and amount of product formed through stoichiometry and dilutions

Exit ticket (3 min) November 15, 2017 On a separate sheet of paper: What is the solubility for an ionic substance, AB, with a Ksp of 1 x 10-7? Learning Target: I CAN calculate molar ratios to determine limiting reactant, concentration, and amount of product formed through stoichiometry and dilutions