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- write out formula - substitute into formula or set up cancellation

Find the molarity of a solution that is prepared by dissolving 12.0g of sodium hydroxide in 325mL of water. - write out formula - substitute into formula or set up cancellation - calculate molar mass if needed; write correct answer with units. 0.92M NaOH.

baker-ramirez
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- write out formula - substitute into formula or set up cancellation

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  1. Find the molarity of a solution that is prepared by dissolving 12.0g of sodium hydroxide in 325mL of water. - write out formula - substitute into formula or set up cancellation - calculate molar mass if needed; write correct answer with units

  2. 0.92M NaOH

  3. How many moles of calcium sulfate are in 425mL of 0.65M calcium sulfate solution? -write out formula -substitute into formula or set up cancellation -calculate molar mass if needed; write correct answer with units

  4. 0.28 moles CaSO4

  5. What volume of 0.40M lithium nitrate solution can be made using 2.0moles of lithium nitrate? Green: write out formula Black: substitute into formula or set up cancellation Red: calculate molar mass if needed; write correct answer with units

  6. 5L

  7. What mass of lithium nitrate must be dissolved in 250mL of water to make a 0.80M solution? Green: write out formula Black: substitute into formula or set up cancellation Red: calculate molar mass if needed; write correct answer with units

  8. 13.8g LiNO3

  9. What volume of 0.80M solution is needed to prepare 425mL of a 0.65M solution? What volume of water is also needed? Green: write out formula Black: substitute into formula or set up cancellation Red: calculate molar mass if needed; write correct answer with units

  10. 345mL solution 425-345 = 80mL water

  11. Find the molarity of a sodium hydroxide solution if enough water is added to 325mL of 0.90M solution to bring the volume to 625mL. Green: write out formula Black: substitute into formula or set up cancellation Red: calculate molar mass if needed; write correct answer with units

  12. 0.468M

  13. Find the molarity of a sodium hydroxide solution after 250mL of water is added to 400mL of 2.2M sodium hydroxide. Green: write out formula Black: substitute into formula or set up cancellation Red: calculate molar mass if needed; write correct answer with units

  14. 1.35 M

  15. 2Fe + 3H2SO4 → Fe2(SO4)3 + 3H2 A student places an iron wire in a solution of 1.3M sulfuric acid. What volume of 1.3M sulfuric acid would be needed to react with 2.8g of iron? Black: label given and unknown amounts of reactants/ products Red: create the bridge to calculate the unknown

  16. .06 L

  17. 2Fe + 3H2SO4 → Fe2(SO4)3 + 3H2 A student places an iron wire in a solution of 1.3M sulfuric acid. What mass of iron is needed to react with 45.0 ml of 1.3 sulfuric acid? Black: label given and unknown amounts of reactants/ products Red: create the bridge to calculate the unknown

  18. 5.7 g

  19. Lithium is mixed with calcium carbonate. -Write the reactants -predict the products -Identify reaction type - Predict states of matter for each substance

  20. 2Li (s) + CaCO3 (aq) → Li2CO3(aq)+Ca(s) Single replacement

  21. Nickel (II) nitratereacts with Sodium phosphate. -Write the reactants -predict the products -Identify reaction type - Predict states of matter for each substance

  22. 3Ni(NO3)2 (aq) + 2Na3PO4(aq → Ni3(PO4)2(s)+ 6NaNO3(aq) Single replacement

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