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Concentration molaity

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CONCENTRATION- MOLARITY 1. 15.8 g KCl is dissolved in 225 mL water. Calculate the molarity. 2. Calculate the mass KCl needed to make 250 mL of a 0.250 M solution. 3. Calculate the volume of a 0.30 M KCl solution that contains 6.00 g of KCl 4. 1.50 g NaCl is dissolved in 100.0 mL of water. Calculate the concentration. 5. How many mole NaCl is in 250.0 mL of a 0.200 M solution? CONCENTRATION- MASS PERCENTAGE SOLUTE 1. What is the mass percentage of oxygen (O) in sodium hydroxide (NaOH)? CONCENTRATION- MOLE FRACTION 1. 0.100 mole NaCl is dissolved in 100.0 gram H2O. What is the mole fraction o ...
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