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You need to make a stock solution ofMg(HCO3)2 with a concentration of 5.50 M. You have a 750.0 mL volumetric flask available to make this stock solution in. You are then tasked with using this stock solution to prepare a sample for use in an experiment. The experimental sample should have a final volume of 5.00 mL and a concentration of 0.150 M Mg(HCO3)2. a) What is the molar mass of Mg(HCO3)2? b) How many moles of the solute would be needed to create the stock solution using the volumetric flask available? c) How many grams of the solute should be added to the volumetric flask to create the stock solution? d) What volume, in mL, of the stock solution should be used to prepare the experimental solution through dilution?

You need to make a stock solution ofMg(HCO3)2 with a concentration of 5.50 M. You have a 750.0 mL volumetric flask available to make this stock solution in. You are then tasked with using this stock solution to prepare a sample for use in an experiment. The experimental sample should have a final volume of 5.00 mL and a concentration of 0.150 M Mg(HCO3)2. a) What is the molar mass of Mg(HCO3)2? b) How many moles of the solute would be needed to create the stock solution using the volumetric flask available? c) How many grams of the solute should be added to the volumetric flask to create the stock solution? d) What volume, in mL, of the stock solution should be used to prepare the experimental solution through dilution?

Chemistry by OpenStax (2015-05-04)
Chemistry by OpenStax (2015-05-04)
1st Edition
ISBN:9781938168390
Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Publisher:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Chapter4: Stoichiometry Of Chemical Reactions
Section: Chapter Questions
Problem 86E: Sodium bicarbonate (baking soda), NaHCO3, can be purified by dissolving it in hot water (60 C),...
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For each part of this question, consider the following scenario: You need to make a stock solution of Mg(HCO3)2 with a concentration of 5.50 M. You have a 750.0 mL volumetric flask available to make this stock solution in. You are then tasked with using this stock solution to prepare a sample for use in an experiment. The experimental sample should have a final volume of 5.00 mL and a concentration of 0.150 M Mg(HCO3)2. a) What is the molar mass of Mg(HCO3)2? b) How many moles of the solute would be needed to create the stock solution using the volumetric flask available? c) How many grams of the solute should be added to the volumetric flask to create the stock solution? d) What volume, in mL, of the stock solution should be used to prepare the experimental solution through dilution?
Transcribed Image Text:For each part of this question, consider the following scenario: You need to make a stock solution of Mg(HCO3)2 with a concentration of 5.50 M. You have a 750.0 mL volumetric flask available to make this stock solution in. You are then tasked with using this stock solution to prepare a sample for use in an experiment. The experimental sample should have a final volume of 5.00 mL and a concentration of 0.150 M Mg(HCO3)2. a) What is the molar mass of Mg(HCO3)2? b) How many moles of the solute would be needed to create the stock solution using the volumetric flask available? c) How many grams of the solute should be added to the volumetric flask to create the stock solution? d) What volume, in mL, of the stock solution should be used to prepare the experimental solution through dilution?
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