Tuesday, January 12th Consider the synthesis of water as shown in Model 3. A container is filled with 10.0 g of H2 and 5.0 g of O2. Which reactant is the.

Slides:



Advertisements
Similar presentations
Stoichiometry.
Advertisements

Drill – 2/28/11 Sodium chloride decomposes into sodium and chlorine. How much (in grams) sodium chloride is required to produce 50.0g of chlorine gas?
Calculating Limiting and Excess Reagents Section 5.5 SCH 3U.
Chapter 9 - Section 3 Suggested Reading: Pages
HONORS CHEMISTRY Feb 27, Brain Teaser Cu + 2 AgNO 3  2 Ag + Cu(NO 3 ) 2 – How many moles of silver are produced when 25 grams of silver nitrate.
CHEMISTRY February 13, 2012.
Stoichiometry Chemistry Ms. Piela.
WHAT DO THE COEFFICIENTS IN A REACTION TELL US??!?!
Limiting Reactants and Excess
What is a reactant? What is a product?.
Who can propel a rocket the farthest? The best scientist will win!
Chemistry Notes Mole to Mole Calculations. Stoichiometry Stoichiometry means using balanced equations to calculate quantities of chemicals used in a chemical.
9.3 Notes Limiting reagents.
Limiting Reagent Problems I 2 O 5 (g) + 5 CO(g) ----> 5 CO 2 (g) + I 2 (g) 1. According to the reaction above, if 80.0 grams of iodine(V) oxide, I 2 O.
Limiting Reagent u The limiting reagent is the reactant you run out of first. u The excess reagent is the one you have left over. u The limiting reagent.
Stoichiometry. The quantitative relationship between the products and reactants in a chemical equation. Compare reactants to products, products to products,
Lecture 129/28/05 So what have you learned in the last few days?
Entry Task: March 13 th- 14 th Block 1 Entry task question: Question: 1.5 grams of zinc was added with 0.5 grams of iodine to produce zinc II iodide. Calculate.
Reaction Mole Ratios Set up ratios to show mole proportions in a balanced equation. Predict the amount of product produced when given the mass of the reactants.
The Math of Equations Stoichiometry
Chapter 19 Gas Stoichiometry.
Student will learn: mole stoichiometry problems mass stoichiometry problems volume stoichiometry problems Student will learn: to calculate amount of reactants.
Chapter 9 Mass – Mass Calculations. 2Al + 6HCl → 2AlCl 3 + 3H 2 How many mol Al will react with 6.37 mol HCl? 2.12 mol Al.
Level ONE (I) Write the correct formula for the following compounds: A. Triphosphorus Nonaselenide B. Aluminum bromide C. Cobalt (VI) Oxide.
Stoichiometry Chapter 11. Skills from Previous Chapters The following skills are not the only ones, but the main ones: Name to formula Balancing equations.
Bell Ringer Please take out a piece of paper and answer the following question individually: When magnesium metal is burned, it forms MgO. How many moles.
Starter S moles of Iron (III) Hydroxide are used in a reaction. How many grams is that?
Student will learn: mole stoichiometry problems
Stoichiometry.
Quiz February 23 1.Find the atomic mass of Al. 2.Find the gram formula mass of Cu 2 O. 3.Underline the important information in the stoichiometry problem.
Balancing Reactions Agenda Quick Quiz Notes on Balancing Reactions Practice, practice and more practice! Homework: More Balancing!
Chapter 9 Notes I Stoichiometry. Stoichiometry Calculations of quantities in chemical reactions This means using balanced equations to calculate quantities.
Chemical Reactions and Conservation of Mass
Recall: A limiting reagent is the reactant whose entities are completely consumed in a reaction. It is the one that runs out first, and as a result, stops.
Unit: Stoichiometry Using mole ratios and review of balancing chemical equations Day 1 - Notes.
Telling a story…. We are going to take a written description about a chemical reaction and transfer it into a balanced chemical equation !
Thursday, October 29 th  Take out your notebook and copper cycle lab papers  Go into the lab, take the mass of your final product, and throw it away.
The Math of Equations Stoichiometry the calculation of quantities in chemical reactions.
Chemical Quantities Chapter 6 Image source:
4Na + O 2  2Na 2 O How many grams of Sodium Oxide can be produced from 25g of Sodium? 25 g Na 1 mole 23.0g 23.0g =1.08 mole Na 2Na 2 O 2Na 2 O 4 Na.
Gravimetric Stoichiometry Is used to calculate masses of reactants and products in a reaction.
Stoichiometry A chemical equation shows the reactants (left side) and products (right side) in a chemical reaction. A balanced equation shows, in terms.
No Bell Ringer Today. We will have a test next Tuesday.
Stoichiometry It’s Finally Here!. What in the world is Stoichiometry? Stoichiometry is how we figure out how the amounts of substances we need for a.
Limiting Reactants and Excess What is the Limiting Reagent (Reactant)? It is the substance in a chemical reaction that runs out first. The limiting reactant.
Problem #1 For the reaction 2 H 2(g) + O 2(g)  2 H 2 O (g), how many liters of water can be made from 5 L of oxygen gas and an excess of hydrogen?
Percent Yield. “yield—” the amount of product actually made through a chemical reaction. Why is this value important? Theoretical yield— calculated amount.
Tuesday, January 19 th Right now: bring me any homework you have that needs to be checked off – this is your ONLY chance today to get your homework checked!
Tuesday January 29, 2013 (Mole to Mole Stoichiometry)
Substances can only react in a chemical reaction until the reactants are used up. Reactions only occur when reactants are in a specific ratio to one another.
Stoichiometry Notes Part II Multi-Step Problems. From yesterday… Why are mole/mole problems impractical in a laboratory setting? We don’t ever measure.
Good Morning! Today is Tuesday, January 5, 2016 HW Due: Balancing Review Please put in the Inbox Do-Now: What do you think the term stoichiometry means?
Mass-Mass Conversions 56.0 g N 2 x g N 2 g NH = 1904 = When nitrogen and hydrogen react, they form ammonia gas, which has the formula.
 2/5/14 Mole Conversions  EQ: How can I use balanced equations to convert from grams to grams?  Balance the following equation and answer the corresponding.
CHEMICAL REACTIONS. Performance Objectives Identify the types of chemical reactions Complete, write, balance chemical equations Calculate mass-mass (stoichiometry/limiting.
Today’s Do Now 1. Balance the following chemical equation: ___C 2 H 6 + ___O 2  ___CO 2 + ___H 2 O 2. How does balancing chemical equations relate to.
Stoichiometry  the calculations of quantities in chemical reactions  “stoichio” = elements  “metry” = to measure.
Daily Science pg. 82 You are doing the following reaction in the lab. You start with g of magnesium. How many grams of oxygen gas do you need? How.
Stoichiometry Pronounced: Stoy-kee-AHM-uh-tree. What is stoichiometry? Its math that helps us to see the relationship between what is used and formed.
Telling a story…. We are going to take a written description about a chemical reaction and transfer it into a balanced chemical equation !
Chapter 9 Stoichiometry.
Chapter 12 Review.
Chapter 9 Stoichiometry part I
HONORS CHEMISTRY Feb 27, 2012.
Results Data Mass of iron nails before the reaction _________
Limiting Reagents.
Warm-Up *Don’t turn in your lab just yet
Announcements Bring handout from Tuesday to discussion tomorrow.
Day 1 - Notes Unit: Stoichiometry
Presentation transcript:

Tuesday, January 12th Consider the synthesis of water as shown in Model 3. A container is filled with 10.0 g of H2 and 5.0 g of O2. Which reactant is the limiting reactant? Show your work (note that your starting quantities are in MASS not MOLES!) What mass of water can be produced? Show your work Which reactant is present in excess, and what mass of that reactant remains after the reaction is complete? Show your work.

Steps Set up and balance your equation For each reactant: Calculate the moles of product you can produce Moles of A to moles of B Or Grams of A to moles of A to moles B If the question requires it, go all the way to grams of product (read carefully! What are you being asked to find?) Whichever number is smaller will be your limiting reactant.

Practice Aluminum metal and hydrogen chloride react. What kind of reaction is this? Write the balanced equation If you have 57.1 grams of aluminum metal and 72.6 grams of hydrogen chloride, what is the limiting reactant?

Practice Aluminum bromide and sodium hydroxide react. What kind of reaction is this? Write the balanced reaction If you have 200.0 grams of aluminum bromide and 89.2 grams of sodium hydroxide, how many grams of aluminum hydroxide will form?

Practice Iron and water react to form hydrogen gas and iron (III) oxide. Write the balanced reaction If you have 79.6 grams of iron and 30.4 grams of water, what is the limiting reagent?

Homework Limiting Reactant Practice Tomorrow Thursday Friday Add this to your pink sheet! Tomorrow Limiting Reactant Lab: Aluminum and Copper (II) Chloride More limiting Reactant Practice Thursday Lab Analysis Start Iron nail lab Friday Finish iron nail lab Quiz: limiting reactants Hand out test review Today is the last day to retake the Math and Moles test.