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Class 12 · Chemistry
→A solution contains 20 g solute and its mass percentage is 10 percent. What is the total mass of the solution?
Class 12 · Chemistry
→A student takes 500 mL as 500 L while calculating molarity. What will happen to the answer?
Class 12 · Chemistry
→In a binary solution, the mole fraction of solvent is 0.60 and total moles are 20. How many moles of solvent are present?
Class 12 · Chemistry
→The mole fraction of solute in a solution is 0.4. If total moles are 15, how many moles of solute are present?
Class 12 · Chemistry
→Why is molality considered more reliable than molarity when temperature changes?
Class 12 · Chemistry
→The molarity of a solution may decrease on heating. What is the most suitable reason?
Class 12 · Chemistry
→400 mL of 0.5 M solution is diluted to 800 mL. What is the new molarity?
Class 12 · Chemistry
→A 1 L solution contains 0.2 mole solute. If water is added to make the volume 2 L, what is the new molarity?
Class 12 · Chemistry
→0.02 percent impurity is equal to how many ppm?
Class 12 · Chemistry
→What value is obtained when 50 ppm is converted into percent?
Class 12 · Chemistry
→A water sample contains 15 mg impurity in 3 kg water. What is the approximate concentration in ppm?
Class 12 · Chemistry
→What mass of solute is present in 750 mL of a 2 percent mass-volume solution?
Class 12 · Chemistry
→What volume of solute is present in 350 mL of a 10 percent volume by volume solution?
Class 12 · Chemistry
→How much solute is present in 400 g of a 5 percent mass by mass solution?
Class 12 · Chemistry
→In a 2 m solution, the mass of solvent is 250 g. How many moles of solute are present?
Class 12 · Chemistry
→A solution has molarity 0.25 M and volume 800 mL. How many moles of solute are present?
Class 12 · Chemistry
→If 0.8 mole solute is dissolved in 400 g solvent, what is the molality?
Class 12 · Chemistry
→The mole fraction of solute is 0.28. What is the mole fraction of solvent in a binary solution?
Class 12 · Chemistry
→If a binary solution has 3 moles of solute and 12 moles of solvent, what is the mole fraction of solute?
Class 12 · Chemistry
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