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

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Concept explainers

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.

Question

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

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