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Class 12 · Chemistry
→A 500 g solution contains 2 g solute. What is the mass percent?
Class 12 · Chemistry
→A solution has mole fraction of solute 0.2. If moles of solute are 2, what are the moles of solvent?
Class 12 · Chemistry
→In a binary solution, mole fraction of component A is 0.75. What is the mole fraction of component B?
Class 12 · Chemistry
→A solution has mole fraction of solute 0.18. If total moles are 5, what are the moles of solute?
Class 11 · Chemistry
→A 2 L solution has solute concentration 300 mg per litre. What is the approximate ppm if the solution is dilute and aqueous?
Class 12 · Chemistry
→A solution has 5.85 percent sodium chloride by mass. If density is taken as 1.0 g mL−1, what is its approximate molarity?
Class 12 · Chemistry
→A solution has 4 percent mass by volume solute. What mass of solute is present in 250 mL solution?
Class 11 · Chemistry
→If a solution is heated and its volume increases while moles of solute remain the same, what happens to molarity and molality?
Class 11 · Chemistry
→Which statement about concentration units is most correct?
Class 11 · Chemistry
→Why is the mole fraction of solute in a 1 molal aqueous solution around 0.0177?
Class 11 · Chemistry
→500 mL of a solution contains 0.2 mol solute. What is the molarity?
Class 11 · Chemistry
→How many moles of solute are present in 400 mL of 0.25 M solution?
Class 11 · Chemistry
→In an aqueous solution the mole fraction of solute is 0.01. What is the approximate molality?
Class 11 · Chemistry
→A 60 percent by mass aqueous ammonia solution is given. What is the approximate mole fraction of ammonia?
Class 11 · Chemistry
→A solution has 40 percent solute by mass. The molar mass of solute is 80 and solvent is water. What is the approximate mole fraction of solute?
Class 11 · Chemistry
→A solution has 10 percent solute by mass and total mass 500 g. What is the mass ratio of solute to solvent?
Class 11 · Chemistry
→A solution has molality 2. If the mass of solvent is 250 g what are the moles of solute?
Class 11 · Chemistry
→If the mole fraction of solute in a solution is 0.4 what is the mole ratio of solute to solvent?
Class 11 · Chemistry
→In a solution the mole ratio of solute to solvent is 2 to 3. What is the mole fraction of solute?
Class 11 · Chemistry
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