04-17-13 Concentration Worksheet ACh.pdf - Whitnall High School
04-17-13 Concentration Worksheet ACh.pdf - Whitnall High School
04-17-13 Concentration Worksheet ACh.pdf - Whitnall High School
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<strong>ACh</strong>Name _______________________Hour ______4. What mass of CaCl 2 is needed to prepare 225 mL of 3.0M CaCl 2 solution?5. What is the mass of solute in 0.35L of 15M KOH?6. What is the percent by mass of carbon if 35 kg of carbon is added to 525 kg of iron to makesteel?7. What is the percent by volume of methanol in a solution that contains 45 mL of methanoldissolved in 125 mL of water?8. A brass trumpet is known to be 60.0% zinc by mass. If the trumpet has a total mass of 755 g,what is the mass of zinc in the instrument?9. A solution of flum is known to be 5.7% flum by volume. What is the volume of pure flum in750mL of the solution?10. Which contains more moles of solute—125mL of 0.15M NaCl or 3.0mL of 2.0M NaCl?Show your work below.11. How many grams of sodium carbonate are there in 15.0mL of 2.0M sodium carbonate?12. What is the molarity of a solution made by dissolving 15.67g of magnesium chloride in waterto a volume of 0.50L?
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