Phet Conc Lab - University of Colorado Phet CONCENTRATION...

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University of Colorado Phet CONCENTRATION Exercise - Familiarize yourself with the oberation of the various functions of the simulation. You can always press the RESET button to get back to the original situation. Press Reset. Move the Concentration Probe into the liquid. Then Shake some Drink mix into the water. Continue to add More Solute. PART 1 Effect of Changing Amount of Solute/Solvent 1. What happens to the conecntration as more solute is addes? ___________________________________________ 2. What units of the concentration on the meter measuring Concentration?_________________________________ 3. What happens to the color as more solute is added? _________________________________________________ 4. What is the relationship between concentration and color? ___________________________________________ 5. Now add water. What happens to the concentration as the quantity of water increases? ____________________ Explain why. (Mention what is happening to the quantity of solvent and solute) 6. Now Remove water with the valve on the lower right. What happens to the concentration as the quantity of water decreases? ____________________ Explain why. (Mention what is happening to the quantity of solvent and solute)
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7. Now Remove water with the Evaporation Slider Bar on the bottom. What happens to the concentration as the quantity of water decreases? ____________________ Explain why. (Mention what is happening to the quantity of solvent and solute)
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