1. Tuesday, January 5th Quiz corrections into the basket if you have them (due Friday) Warm-up ▫ Biological Weapon in WW1 ▫ COCl 2(g) + H 2 O (l) → 2HCl (aq) + CO 2(g) ▫ If 465 moles of COCl 2 are used how many grams of HCl is produced?

2. Formaldehyde causes blood acidosis 2CH 2 O (aq) + O 2(g) → 2CH 2 O 2 What is the type of reaction? 6.5 grams of CH 2 O 2 is produced. How many molecules of O 2 were used?

3. Kidney Stones C 2 H 2 O 4 + CaCl 2 → CaC 2 O 4 + 2HCl If 68 grams of HCl are formed, how many grams of calcium oxalate are produced?

4. Methanol causes blood acidosis CH 4 O (aq) + O 2(g) → CH 2 O 2(aq) + H 2 O (l) 8.5 x 10 23 molecules of CH 4 O react. How many grams of CH 2 O 2 are produced?

5. Arsenic causes nerve damage ___As (s) + ___HCl (aq) → ____AsCl 3(aq) + ___H 2(g) What is the type of reaction? Balance the equation How many moles of H 2 gas will be produced from 6.5 grams of Arsenic?

6. Lead causes nerve damage Pb (s) + 2HCl (aq) → PbCl 2(aq) + H 2(g) What is the type of reaction? 2.1 x 10 24 atoms of lead are used in the reaction. How many grams of H 2 will be produced?

7. Kidney stones – different type! __Na 3 PO 4(aq) + __CaCl 2(aq) → __Ca 3 (PO 4 ) 2(s) + __NaCl (aq) What is the type of reaction? Balance the equation How many moles of NaCl will be produced if 7.5 moles of Na 3 PO 4 are used? What is the chemical formula for the kidney stone?

8. Yet another type of kidney stones Na 2 C 2 O 4(aq) + CaCl 2(aq) → CaC 2 O 4(s) + 2NaCl (aq) What is the type of reaction? If a kidney stone (the precipitate) weighs 0.30 grams then how many moles of Na 2 C 2 O 4 were needed to make it?

9. Mercury sulfide causes nerve damage HgS (s) + 2HCl (aq) → HgCl 2 + H 2 S If 3.5 grams of mercury sulfide are used, how many molecules of hydrogen sulfide are produced?

10. Homework Baking Soda and Vinegar Prelab ▫ MUST be done before class tomorrow or you will not participate in the lab Grade printout ▫ Signature due Thursday Quiz corrections ▫ Due Friday