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You are asked to prepare a 1.000 L solution of 4.5 M C6H12O6 (glucose; molar mass = 180.16 g/mol) in a lab by dissolving 811.0 g of glucose in water. Consider the following two scenarios in whic you commit a user error while preparing this solution. Prepared in a volumetric flask 1.000 L Assumed volume Volumetric Added water 2.0 cm above the line, which corresponds to 8.2 mL (0.0082 L) additional error solution volume Preparation details You add the glucose to a volumetric flask and then add water until it dissolves. The water bottle you are using has a worn tip, and you inadvertently add too much water such that the meniscus is above the line. The diameter of the neck of the volumetric flask is 2.29 cm. 811.0 g glucose You decide to evaluate and compare the errors you made while preparing the solutions using the different methods. Calculate the actual concentrations of the intended 4.5 M glucose solutions prepared by each method based on their actual final volumes. Express the concentrations in molarity to two decimal places. Make certain each field is complete before submitting your answer. ► View Available Hint(s) Concentration: M 811.0 g glucose Prepared in a beaker 1.000 L 811.0 g takes up 526 mL of space rather than 500 mL of space You prepare the solution by adding glucose to a large beaker and approximated the volume of the glucose to be 500 mL. Therefore, you add 500. mL of water to the 526 mL in the beaker using a graduated cylinder. ||||||| Concentration: C ? |||| M

You are asked to prepare a 1.000 L solution of 4.5 M C6H12O6 (glucose; molar mass = 180.16 g/mol) in a lab by dissolving 811.0 g of glucose in water. Consider the following two scenarios in whic you commit a user error while preparing this solution. Prepared in a volumetric flask 1.000 L Assumed volume Volumetric Added water 2.0 cm above the line, which corresponds to 8.2 mL (0.0082 L) additional error solution volume Preparation details You add the glucose to a volumetric flask and then add water until it dissolves. The water bottle you are using has a worn tip, and you inadvertently add too much water such that the meniscus is above the line. The diameter of the neck of the volumetric flask is 2.29 cm. 811.0 g glucose You decide to evaluate and compare the errors you made while preparing the solutions using the different methods. Calculate the actual concentrations of the intended 4.5 M glucose solutions prepared by each method based on their actual final volumes. Express the concentrations in molarity to two decimal places. Make certain each field is complete before submitting your answer. ► View Available Hint(s) Concentration: M 811.0 g glucose Prepared in a beaker 1.000 L 811.0 g takes up 526 mL of space rather than 500 mL of space You prepare the solution by adding glucose to a large beaker and approximated the volume of the glucose to be 500 mL. Therefore, you add 500. mL of water to the 526 mL in the beaker using a graduated cylinder. ||||||| Concentration: C ? |||| M

Chemistry
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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You are tasked with preparing a 1.000 L solution of 4.5 M \( \text{C}_6\text{H}_{12}\text{O}_6 \) (glucose; molar mass = 180.16 g/mol) by dissolving 811.0 g of glucose in water. Consider two scenarios of user error while preparing this solution: **Prepared in a Volumetric Flask:** - **Assumed Volume:** 1.000 L - **Volumetric Error:** Added water 2.0 cm above the line, adding 8.2 mL (0.0082 L) more to the solution. - **Preparation Details:** Glucose is added to a volumetric flask, followed by water until dissolved. Due to a worn water bottle tip, excess water is added, making the meniscus rise above the line. The neck diameter of the volumetric flask is 2.29 cm. **Prepared in a Beaker:** - **Assumed Volume:** 1.000 L - **Volumetric Error:** Glucose takes up 526 mL, not the estimated 500 mL. - **Preparation Details:** Glucose is placed in a beaker and approximated as 500 mL. Then, 500 mL of water is added, leading to an excess volume of 526 mL. **Task:** Evaluate and compare the errors of each method by calculating the actual concentrations of the 4.5 M glucose solutions. **Instructions:** Express concentrations in molarity to two decimal places and ensure fields are complete before submission. **Image Description:** The image shows: 1. **Volumetric Flask Setup:** Contains 811.0 g of glucose with a field for entering concentration. 2. **Beaker Setup:** Displays 811.0 g of glucose with a graduated cylinder for measuring 500 mL water added over the glucose, also with a concentration field. Follow these instructions to determine the actual concentration in each scenario considering the described errors.
Transcribed Image Text:You are tasked with preparing a 1.000 L solution of 4.5 M \( \text{C}_6\text{H}_{12}\text{O}_6 \) (glucose; molar mass = 180.16 g/mol) by dissolving 811.0 g of glucose in water. Consider two scenarios of user error while preparing this solution: **Prepared in a Volumetric Flask:** - **Assumed Volume:** 1.000 L - **Volumetric Error:** Added water 2.0 cm above the line, adding 8.2 mL (0.0082 L) more to the solution. - **Preparation Details:** Glucose is added to a volumetric flask, followed by water until dissolved. Due to a worn water bottle tip, excess water is added, making the meniscus rise above the line. The neck diameter of the volumetric flask is 2.29 cm. **Prepared in a Beaker:** - **Assumed Volume:** 1.000 L - **Volumetric Error:** Glucose takes up 526 mL, not the estimated 500 mL. - **Preparation Details:** Glucose is placed in a beaker and approximated as 500 mL. Then, 500 mL of water is added, leading to an excess volume of 526 mL. **Task:** Evaluate and compare the errors of each method by calculating the actual concentrations of the 4.5 M glucose solutions. **Instructions:** Express concentrations in molarity to two decimal places and ensure fields are complete before submission. **Image Description:** The image shows: 1. **Volumetric Flask Setup:** Contains 811.0 g of glucose with a field for entering concentration. 2. **Beaker Setup:** Displays 811.0 g of glucose with a graduated cylinder for measuring 500 mL water added over the glucose, also with a concentration field. Follow these instructions to determine the actual concentration in each scenario considering the described errors.
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