1. Stoichiometry By: Taylor Sirch Period 8

2. Here’s the question! Silver nitrate and sodium phosphate are reacted in equal amounts of 200. g each. How many grams of silver phosphate are produced?

3. What’s to do first? Set Up An Equation Turn off the computer Do a mole to mole conversion

4. Wrong!!! Go Back

5. Good Job! …but what is the correct equation? AgNO₃ + Na₃PO₄ → Ag₃PO₄ + NaNO₃ FeNo₃ + Cl₃PO₄ → Fe₃PO₄ + ClNO₃ AgNO₄ + Na₄PO₃ → Ag₄PO₃ + NaNO₄

6. Correct! Now balance it! 3AgNO₃ + Na₃PO₄ → Ag₃PO₄ + 3NaNO₃ 3AgNO₃ + 4Na₃PO₄ → Ag₃PO₄ + 6NaNO₃ AgNO₃ + Na₃PO₄ → Ag₃PO₄ + NaNO₃

7. Great! Now tell me, what kind of problem is this? A regular one Limiting reagent

8. Yes, limiting reagent! Okay what’s the first step? 200. g AgNO₃ ---------------------- 1 200. g Na₂PO₄ --------------------- 1 ---------------------- 200. g AgNO₃ 1 ----------------------- 200. g Na₂PO₄ GFM

9. Right. What’s the next step? 200. g AgNO₃ ------------------ 1 X 200. g Na₂PO₄ ------------------- 1 X Mole to mole conversion GFM Gram to Liters conversion

10. Wonderful! Next..? 200. g AgNO₃ ------------------ 1 200. g Na₂PO₄ ------------------- 1 X X 1 mol -------------- 169.9 g AgNO₃ 1 mol --------------- 164 g Na₃PO₄ X X Mole to mole conversion Done! Multiply by 6.02 x 10 to the 23

11. You’re on a roll! Neeexxxtt. 200. g AgNO₃ ------------------ 1 200. g Na₂PO₄ ------------------- 1 1 mol AgNO₃ -------------- 169.9 g AgNO₃ X 1 mol Na₃PO₄ --------------- 164 g Na₃PO ₄ X 1 mol Ag₃PO₄ ------------------ 3 mol AgNO₃ X X 1 mol Ag₃PO₄ -------------------- 1 mol Na₃PO₄ Okay, now we’re done.One more GFM Convert to molecules

12. So close! 200. g AgNO₃ ------------------ 1 200. g Na₂PO₄ ------------------- 1 1 mol AgNO₃ -------------- 169.9 g AgNO₃ 1 mol Na₃PO₄ --------------- 164 g Na₃PO₄ 1 mol Ag₃PO₄ ------------------ 3 mol AgNO₃ 1 mol Ag₃PO₄ -------------------- 1 mol Na₃PO₄ X X X X 418.7 g Ag₃PO₄ -------------------------- 1 mol Ag₃PO₄ 418.7 g Ag₃PO₄ -------------------------- 1 mol Ag₃PO₄ X X Solve This is the answer

13. How many grams of silver phosphate are produced? 511 g 164 g 675 g

14. You won!