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Sample problems alkali metals and alkaline earths

  1. Question: How many moles are in 23 grams of Sodium (Na)? Answer: There is 1 mole of Sodium in 23 grams.

  2. Question: What is the mass of 2 moles of Magnesium (Mg)? Answer: The mass of 2 moles of Magnesium is 48.6 g.
  3. Question: How many atoms are in 1 mole of Potassium (K)? Answer: There are approximately 6.022 x 10²³ atoms in 1 mole of Potassium.
  4. Question: What is the mass of 1 mole of Calcium (Ca)? Answer: The mass of 1 mole of Calcium is approximately 40.08 g.
  5. Question: How many moles of Lithium (Li) are in 6.94 grams of Lithium? Answer: There is 1 mole of Lithium in 6.94 grams.
  6. Question: How many grams are in 0.5 moles of Beryllium (Be)? Answer: There are approximately 4.5 g in 0.5 moles of Beryllium.
  7. Question: How many moles are in 87 grams of Rubidium (Rb)? Answer: There is approximately 1 mole in 87 grams of Rubidium.
  8. Question: What is the mass of 3 moles of Sodium (Na)? Answer: The mass of 3 moles of Sodium is 69 g.
  9. Question: How many atoms are in 1 mole of Strontium (Sr)? Answer: There are approximately 6.022 x 10²³ atoms in 1 mole of Strontium.
  10. Question: What is the mass of 2.5 moles of Potassium (K)? Answer: The mass of 2.5 moles of Potassium is approximately 98.2 g.
  11. Question: How many grams are in 3 moles of Calcium (Ca)? Answer: There are approximately 120.24 g in 3 moles of Calcium.
  12. Question: How many moles are in 152.9 grams of Barium (Ba)? Answer: There is approximately 1 mole in 152.9 grams of Barium.
  13. Question: What is the volume of 2 moles of Lithium (Li) at STP? Answer: The volume of 2 moles of Lithium at STP is 44.8 liters.
  14. Question: How many atoms are in 2 moles of Magnesium (Mg)? Answer: There are approximately 1.204 x 10²⁴ atoms in 2 moles of Magnesium.
  15. Question: What is the volume occupied by 0.5 moles of Beryllium (Be) at STP? Answer: The volume occupied by 0.5 moles of Beryllium at STP is 11.2 liters.
  16. Question: How many grams are in 5 moles of Rubidium (Rb)? Answer: There are approximately 435 g in 5 moles of Rubidium.
  17. Question: What is the mass of 4 moles of Strontium (Sr)? Answer: The mass of 4 moles of Strontium is approximately 347.4 g.
  18. Question: How many atoms are in 3 moles of Barium (Ba)? Answer: There are approximately 1.807 x 10²⁴ atoms in 3 moles of Barium.
  19. Question: What is the volume occupied by 3 moles of Sodium (Na) at STP? Answer: The volume occupied by 3 moles of Sodium at STP is 67.2 liters.
  20. Question: How many grams are in 2 moles of Potassium (K)? Answer: There are approximately 78.2 g in 2 moles of Potassium.

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