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Class 11 · Chemistry
→A solution contains 0.001 g solute per cubic centimetre. What is the mass by volume percent?
Class 11 · Chemistry
→How much water should be added to 100 mL of 5 M solution to prepare a 0.5 M solution?
Class 11 · Chemistry
→How much water should be added to 1 L of 2 M solution to make the final molarity 0.8 M?
Class 11 · Chemistry
→How much water should be added to 300 g of a 20 percent solution to make the mass percent 12?
Class 11 · Chemistry
→How much pure solute should be added to 200 g of 10 percent solution to make the mass percent 20?
Class 11 · Chemistry
→A solution has molarity 3 M and mass percent 12. The molar mass of solute is 40. What is the density of the solution?
Class 11 · Chemistry
→A solution has 20 percent by mass solute and density 1.2 g mL−1. The molar mass of solute is 40. What is the molarity?
Class 11 · Chemistry
→A 15 percent by mass glucose solution is given. What is its approximate molality?
Class 11 · Chemistry
→A 30 percent by mass urea solution is given. What is the approximate mole fraction of urea?
Class 11 · Chemistry
→An aqueous solution has molality 5. What is the approximate mole fraction of solute?
Class 11 · Chemistry
→10 g solute is dissolved in 190 g water. If molar mass of solute is 50 what is the molality?
Class 11 · Chemistry
→20 mL ethanol and 80 mL water are mixed. If the final volume is 95 mL, what is the volume percent of ethanol?
Class 11 · Chemistry
→1 L water contains 0.05 g lead ions. Assuming a very dilute solution what is the concentration in ppm?
Class 11 · Chemistry
→8 g sodium hydroxide is dissolved in water and final volume is made 200 mL. What is the molarity of the solution?
Class 11 · Chemistry
→A solution contains 500 g water and 34.2 g sucrose. What is the approximate mole fraction of sucrose?
Class 11 · Chemistry
→A solution has molarity 2.5 M and density 1.25 g mL−1. The molar mass of solute is 100 g mol−1. What is the mass percent of the solution?
Class 11 · Chemistry
→In an aqueous solution the mole fraction of water is 0.90. What is the approximate molality of the solute?
Class 11 · Chemistry
→In a solution the mole fraction of solute is 0.25. If molar mass of solute is 60 and solvent is water what is the approximate mass percent of solute?
Class 11 · Chemistry
→200 mL of 3 M acid is mixed with 400 mL of 1.5 M same acid. Assuming final volume is 600 mL what is the molarity?
Class 11 · Chemistry
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