3. Drag the beaker to the sink and fill it with water until the beaker is approximately one-quarter full. The beaker will return to the balance and then click in the Balance area to zoom in. Record the mass of the water below. Drag the beaker off the balance to the spotlight on the right. 48.6008 g 4. Zoom into the balance area again and place a weigh paper on the balance. Tare the balance. Open the bottle by clicking on the lid. Click the largest scoop image on the front of the bottle to fill the scoop with approximately 1 g of solid. Drag the scoop to the weighing paper on the balance until it snaps in place and then let go. Repeat with a second scoop the same size. Record the total mass of the NH4Cl. 1.9644 g 5. Drag the weigh paper to the beaker of water and add the NH4Cl sample to the water to make an aqueous solution of NH4. 6. Determine the kilograms of solvent (water) in the beaker and record the answer below. kg 7. Determine the moles of NH4Cl in the sample and record the answer below. mol 8. The molality is calculated using the formula: Calculate the molality of the NH4Cl solution in units of mol/kg. mol/kg molality= moles solute kg solvent mass solute molar mass solute kg solvent
3. Drag the beaker to the sink and fill it with water until the beaker is approximately one-quarter full. The beaker will return to the balance and then click in the Balance area to zoom in. Record the mass of the water below. Drag the beaker off the balance to the spotlight on the right. 48.6008 g 4. Zoom into the balance area again and place a weigh paper on the balance. Tare the balance. Open the bottle by clicking on the lid. Click the largest scoop image on the front of the bottle to fill the scoop with approximately 1 g of solid. Drag the scoop to the weighing paper on the balance until it snaps in place and then let go. Repeat with a second scoop the same size. Record the total mass of the NH4Cl. 1.9644 g 5. Drag the weigh paper to the beaker of water and add the NH4Cl sample to the water to make an aqueous solution of NH4. 6. Determine the kilograms of solvent (water) in the beaker and record the answer below. kg 7. Determine the moles of NH4Cl in the sample and record the answer below. mol 8. The molality is calculated using the formula: Calculate the molality of the NH4Cl solution in units of mol/kg. mol/kg molality= moles solute kg solvent mass solute molar mass solute kg solvent
Introductory Chemistry: An Active Learning Approach
6th Edition
ISBN:9781305079250
Author:Mark S. Cracolice, Ed Peters
Publisher:Mark S. Cracolice, Ed Peters
Chapter3: Measurement And Chemical Calculations
Section: Chapter Questions
Problem 128E: In Active Example 3-29 you calculated that you would have to work six weeks to earn enough money to...
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