1 / 8

Make up Stoichiometry Bellwork

Make up Stoichiometry Bellwork. Each Bellwork is worth 20 points Complete, as many days as you need, so if you need 4 days, complete 4 bellworks. Bellwork.

angus
Download Presentation

Make up Stoichiometry Bellwork

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Make up Stoichiometry Bellwork Each Bellwork is worth 20 points Complete, as many days as you need, so if you need 4 days, complete 4 bellworks

  2. Bellwork 1. What is the mass(g) of KI produced when 10 grams of Iodine I2 reacts with excess potassium. Balance !!!!!K(s) + I2(s) → KI(S) 2.How many grams of Iodine I2 are produced when 9.4 grams of NaI sodium Iodidereacts with excess chlorine gas. Balance the equation first! Cl2(g) + NaI(aq)→ NaCl(s) + I2(s)

  3. Bellwork • Why does a reaction stop when the limiting reaction is consumed or used up? 2. There are 100.0 grams of each reactant available. Determine the limiting reactant in the equation below. SO2 + 2NaOH → Na2SO3 + H2O

  4. Friday 3/5 Agenda • Bellwork • Due: Percent yield worksheet • Worksheet: Stoichiometry mixed review • Monday Lab: Percent Yield Bellwork Consider the balanced reaction below: 2H2S(g) + 3O2(g) → 2SO2(g) + 2H2O(l) • You have a 6.1 grams of Hydrogen sulfide which reacts with 5.8 grams of oxygen gas. What is the limiting reactant? • Using moles of your limiting reactant, calculate the theoretical yield of SO2 3) In the lab you obtain 2.5 grams of sulfur dioxide (actual yield). What is the percent yield of sulfur dioxide?

  5. Bellwork 1) Balance the reaction below: CaCO3 + HCl → CaCl2 + CO2 + H2O 2) You have a 155 grams of CaCO3 which reacts with 250 grams of HCl. What is the limiting reactant? 3) Determine the theoretical yield of CaCl2 4) In the lab you obtain 142 grams of CaCl2(actual yield). What is the % yield of CaCl2?

  6. Bellwork 1. Given the balanced equation: NaOH + HCl → NaCl + H2O What is the total number of grams of H2O produced when 96 g of NaCl is formed? 2.In the balanced equation: Fe2O3(s) + 3CO(g) → 2Fe(s) + 3CO2(g) how many moles of Fe2O3(s) are required to react completely with 3.0 moles of CO(g)?

  7. Bellwork Consider the following unbalanced reaction. 2Mg + O2→ 2MgO 1.) If you have 0.3 grams of Mg and excess oxygen, what is the theoretical yield of MgO? 2.) In the lab, you make 0.29 grams of MgO, what is your percent yield?

  8. Bellwork Consider the following unbalanced reaction. PbS2 + 3O2→ PbO2 + 2SO2 1.) If 400 grams of lead (IV) sulfide reacts with 150 grams of oxygen gas. What is the limiting reactant? 2.) What is the theoretical yield of lead (IV) oxide? 3.) Your experimental procedure produces 205.3 grams of lead (IV) oxide. What is the percent yield of lead (IV) oxide?

More Related