Week 11: Creating a Solution of Known MolarityIn this assignment, you will weigh out a sample of baking soda (NAHCO;) and create a solution of knownmolarity.Start Virtual ChemLab, select Reactions and Stoichiometry, and then select Creating a Solution ofKnown Molarity from the list of assignments. The lab will open in the Titration laboratory.1.2. In the laboratory, a bottle of baking soda (sodium bicarbonate, NaHCO;) will be next to the balance,and an empty beaker will be on the stir plate. Drag the empty beaker to the spotlight next to thebalance, click in the Balance area to zoom in, place a weigh paper on the balance, and tare thebalance.3. Open the bottle by clicking on the lid (Remove Lid). Pick up the Scoop and scoop out some sample byfirst dragging the scoop to the mouth of the bottle and then pulling the scoop down the face of thebottle. As the scoop is dragged down the face of the bottle it will pick up different quantities of solid.Select the largest sample possible and drag the scoop to the weighing paper on the balance until itsnaps in place and then let go. This will put approximately 1 g of sample on the balance. Repeat witha second Scoop. Record the mass of the NaHCO; in the data table.4. Drag the weigh paper to the beaker and add the NaHCO; sample to the beaker. Click on the greenZoom Out arrow to return to the laboratory.5. Drag the beaker to the 50 mL graduated cylinder (the largest one) by the sink and empty the sampleinto the cylinder. Hold the cylinder under the tap until it fills with water to make an aqueous solutionof NaHCO;. (When the graduated cylinder is full it will automatically snap back into place.) Note thatthe solid is added and dissolved before the volume is measured when making a molar solution.Chemists normally use a volumetric flask for making molar solutions, but this is not available in thesimulation.6. Determine the liters of solution in the cylinder and record the data in the data table.7. Determine the moles of NaHCO, in the sample and record the data in the data table.Data Tablemass NaHCO;moles NaHCO;liters solution8. The molarity is calculated using the formula:moles solutemass solute/molar mass solutemolarity =L solutionL solutionCalculate the molarity of the NAHCO; solution in units of mol/L.© Beyond Labz, all rights reserved

From the assignment description above, it can be noted that 2 scoops of NaHCO3 are added on the…

Determine the liters of solution in the cylinder and record the data in the data table. Determine the moles of NaHCO; in the sample and record the data in the data table. Data Table mass NaHCO; moles NaHCO; liters solution The molarity is calculated using the formula: moles solute mass solute/ molarity = molar mass solute L solution L solution Calculate the molarity of the NaHCO; solution in units of mol/L.

Determine the liters of solution in the cylinder and record the data in the data table. Determine the moles of NaHCO; in the sample and record the data in the data table. Data Table mass NaHCO; moles NaHCO; liters solution The molarity is calculated using the formula: moles solute mass solute/ molarity = molar mass solute L solution L solution Calculate the molarity of the NaHCO; solution in units of mol/L.

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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