2. Categories Could you put an image here?

3. 500 400 300 200 100 Toxicity Concentrated Solutions 10 23 Weight For It What’s the Word?

4. Categories This word is a gas, liquid, or solid that dissolves when mixed with another substance that is usually water. What's the Word? Prompt 100 Points

5. Categories What's the Word? Response 100 Points What is a solute?

6. Categories What's the Word? Prompt 200 Points This substance is present in the greatest quantity in a solution. It is usually water, but almost always a liquid.

7. Categories What is a solvent? What's the Word? Response 200 Points

8. Categories What's the Word? Prompt 300 Points These substances dissolve completely.

9. Categories What's the Word? Response 300 Points What is soluble?

10. Categories This is the sum of the atomic masses (in grams) of a chemical formula. What's the Word? Prompt 400 Points

11. Categories What is molar mass? What's the Word? Response 400 Points

12. Categories This chemical unit is the amount of moles of solute per liter of solvent. What's the Word? Prompt 500 Points

13. Categories What is Molarity? What's the Word? Response 500 Points

14. Categories This is the mass of 1 mole of H 2 O. Weight For It Prompt 100 Points

15. Categories Weight For It Response 100 Points What is 18 g? H 2 O = (1 x 2) + (16 x 1) = 18 g

16. Categories Weight For It Prompt 200 Points This is the mass of 1 mole of C 6 H 12 O 6.

17. Categories What is 180 g? C 6 H 12 O 6 = (12 x 6) + (1 x 12) + (16 x 6) = 180 g Weight For It Response 200 Points

18. Categories Weight For It Prompt 300 Points Which is heavier: 1 mole of NaCl or 1 mole of KCl?

19. Categories Weight For It Response 300 Points What is KCl? NaCl = 23 + 35 = 58 g KCl = 39 + 35 = 74 g

20. Categories How many grams would 2 moles of LiCl weigh? Weight For It Prompt 400 Points

21. Categories What is 84 g? LiCl = (7 + 35) x 2 = 84 g Weight For It Response 400 Points

22. Categories Would 1 mole of CaCl 2 or 2 moles of HF weigh more? Weight For It Prompt 500 Points

23. Categories What is CaCl 2 ? CaCl 2 = 40 + (35 x 2) = 110 g HF = (1 + 19) x 2 = 40 g Weight For It Response 500 Points

24. Categories This man discovered the number of molecules in 1 mole is 6.02 x 10 23. 10 23 Prompt 100 Points

25. Categories 10 23 Response 100 Points Who is Avogadro?

26. Categories 10 23 Prompt 200 Points 1 mole of H 2 O is equal to this many molecules.

27. Categories What is 6.02 x 10 23 ? 10 23 Response 200 Points

28. Categories 10 23 Prompt 300 Points 0.5 mole of H 2 O is equal to this many molecules.

29. Categories 10 23 Response 300 Points What is 3.01 x 10 23 ?

30. Categories How many molecules are in 32 g of O 2 ? 10 23 Prompt 400 Points

31. Categories What is 6.02 x 10 23 ? 10 23 Response 400 Points

32. Categories If there are 1.204 x 10 24 molecules of NO, how much does NO weigh? 10 23 Prompt 500 Points

33. Categories What is 60 g? NO = (14 + 16) x 2 = 60 g 10 23 Response 500 Points

34. Categories If you have 1 mole of NaCl in 1 liter of H 2 O, this is the Molarity. Concentrated Solutions Prompt 100 Points

35. Categories Concentrated Solutions Response 100 Points What is 1 Molarity? 1 mole solute/1 liter of solvent = 1 Molarity

36. Categories Concentrated Solutions Prompt 200 Points If you have 1 Molarity of KCl, this is how many grams of KCl there are in solution.

37. Categories What is 74 g? 1 mole = molar mass Concentrated Solutions Response 200 Points

38. Categories Concentrated Solutions Prompt 300 Points 1.0 Molarity of CuCl 2 has 133 g in 1 liter of H 2 O. This Molarity is for 13.3 g of CuCl 2 in 1 liter of H 2 O.

39. Categories Concentrated Solutions Response 300 Points What is 0.1 Molarity? In 1 liter, move the decimal to the left.

40. Categories 1.0 Molarity of KCl has 74 g in 1 liter of H 2 O. This molarity is for 7.4 g of KCl in 0.1 liter of H 2 O. Concentrated Solutions Prompt 400 Points

41. Categories What is 1.0 Molarity? Pretend it’s in 1 liter, move the decimal to the left. If it’s in 0.1 liter (or 100 mL), move the decimal to the right. Concentrated Solutions Response 400 Points

42. Categories 1.0 Molarity of KCl has 74 g in 1 liter of H 2 O. This number of moles is for 7.4 g of KCl in 0.1 liter of H 2 O. Concentrated Solutions Prompt 500 Points

43. Categories What is 0.1 moles? 74 g of KCl is 1 mole, in 1 liter is 1.0 Molarity. Move the decimal to the left to get 0.1 Molarity when it is 7.4 g. It is 0.1 moles. **Moles do not change with volume** Concentrated Solutions Response 500 Points

44. Categories Is water toxic? Toxicity Prompt 100 Points

45. Categories Toxicity Response 100 Points What is yes! Everything is toxic.

46. Categories Toxicity Prompt 200 Points This is the amount of an ingested substance that kills 50% of a test sample.

47. Categories What is lethal dose (LD 50 )? Toxicity Response 200 Points

48. Categories Toxicity Prompt 300 Points If a person weighs 125 pounds, this is that person’s weight in kg. *1 kg = 2.2 lbs

49. Categories Toxicity Response 300 Points What is 56.8 kg? 125/2.2 = 56.8 kg

50. Categories The toxic dose of sugar is 30,000 mg. If a child weighs 30 pounds, how many mg of sugar is lethal? Toxicity Prompt 400 Points

51. Categories What is 409,090 mg? (30/2.2) x 30,000 = 409,090 mg Toxicity Response 400 Points

52. Categories What is more toxic: 1 mole of mercury or 100g of mercury? Toxicity Prompt 500 Points

53. Categories What is 1 mole? 1 mole = 200 g **Comparing LD 50 of different chemicals, the lowest is the most toxic. If it’s the same chemical, the more you have, the more toxic it is. Toxicity Response 500 Points

54. Categories Put some closing remark here

55. Categories The Daily Double