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Class 11 · Chemistry
→What is 500 ppm expressed as mass percent?
Class 11 · Chemistry
→The mole percent of solute in a solution is 35 percent. What is the mole fraction of solute?
Class 11 · Chemistry
→If the mole ratio of solute to solvent is 1:4, what is the mole fraction of solute?
Class 11 · Chemistry
→In a binary solution, the mole fraction of solvent is 0.75 and moles of solute are 3. How many moles of solvent are present?
Class 11 · Chemistry
→What is the approximate mole fraction of acid in a 36.5% by mass hydrochloric acid solution?
Class 11 · Chemistry
→The mole fraction of solute in water is 0.1. What is the approximate molality of the solution?
Class 11 · Chemistry
→A solution has mole fraction of solute 0.2 and the solvent is water. What is the approximate molality of the solution?
Class 11 · Chemistry
→A glucose sample has a mass of 18 g and a molar mass of 180 g mol⁻¹. How many moles of glucose are present?
Class 11 · Chemistry
→How many moles of solute are needed in 400 g solvent to make a 2.5 molal solution?
Class 11 · Chemistry
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