Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Related questions
Concept explainers
Question
A chemist prepares a solution of calcium bromide(CaBr2) by measuring our 30.2 umol of calcium bromide into a 300.mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in mol/ L of the chemist's calcium bromide solution. Round your answer to 3 significant digits.
![**Chemistry Calculation: Concentration of Calcium Bromide Solution**
**Problem Statement:**
A chemist prepares a solution of calcium bromide (CaBr₂) by measuring out 30.2 μmol of calcium bromide into a 300. mL volumetric flask and filling the flask to the mark with water.
Calculate the concentration in mmol/L of the chemist's calcium bromide solution. Round your answer to 3 significant digits.
**Solution:**
To find the concentration, you need the amount of substance in moles (or millimoles) and the volume of the solution in liters.
1. **Convert micromoles to millimoles:**
\[ 30.2 \, \mu\text{mol} = \frac{30.2 \, \mu\text{mol}}{1000} = 0.0302 \, \text{mmol} \]
2. **Convert the volume from milliliters to liters:**
\[ 300. \, \text{mL} = \frac{300.}{1000} = 0.300 \, \text{L} \]
3. **Calculate the concentration in mmol/L:**
\[ \text{Concentration} = \frac{\text{Amount of substance (mmol)}}{\text{Volume (L)}} = \frac{0.0302 \, \text{mmol}}{0.300 \, \text{L}} = 0.1007 \, \text{mmol/L} \]
Rounded to 3 significant digits, the concentration is:
\[ \text{Concentration} = 0.101 \, \text{mmol/L} \]
**Answer:**
The concentration of the calcium bromide solution is \(0.101 \, \text{mmol/L}\).
**UI Elements:**
- There is a box labeled "mmol/L" where the user is expected to input their final calculated concentration.
**Action Buttons:**
- **Check**: To verify the solution.
- **Explanation**: To provide more details or steps if needed.
- Other icons at the right side include:
- A calculator icon.
- A statistics/graph icon.
- An AR (augmented reality) icon.](https://content.bartleby.com/qna-images/question/27b4802f-f0fe-408d-90d1-a8d89e62e50b/53283d24-a3db-44b1-a2d4-c8643f963b7b/o0f3pusf.jpeg)
Transcribed Image Text:**Chemistry Calculation: Concentration of Calcium Bromide Solution**
**Problem Statement:**
A chemist prepares a solution of calcium bromide (CaBr₂) by measuring out 30.2 μmol of calcium bromide into a 300. mL volumetric flask and filling the flask to the mark with water.
Calculate the concentration in mmol/L of the chemist's calcium bromide solution. Round your answer to 3 significant digits.
**Solution:**
To find the concentration, you need the amount of substance in moles (or millimoles) and the volume of the solution in liters.
1. **Convert micromoles to millimoles:**
\[ 30.2 \, \mu\text{mol} = \frac{30.2 \, \mu\text{mol}}{1000} = 0.0302 \, \text{mmol} \]
2. **Convert the volume from milliliters to liters:**
\[ 300. \, \text{mL} = \frac{300.}{1000} = 0.300 \, \text{L} \]
3. **Calculate the concentration in mmol/L:**
\[ \text{Concentration} = \frac{\text{Amount of substance (mmol)}}{\text{Volume (L)}} = \frac{0.0302 \, \text{mmol}}{0.300 \, \text{L}} = 0.1007 \, \text{mmol/L} \]
Rounded to 3 significant digits, the concentration is:
\[ \text{Concentration} = 0.101 \, \text{mmol/L} \]
**Answer:**
The concentration of the calcium bromide solution is \(0.101 \, \text{mmol/L}\).
**UI Elements:**
- There is a box labeled "mmol/L" where the user is expected to input their final calculated concentration.
**Action Buttons:**
- **Check**: To verify the solution.
- **Explanation**: To provide more details or steps if needed.
- Other icons at the right side include:
- A calculator icon.
- A statistics/graph icon.
- An AR (augmented reality) icon.
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution
Trending nowThis is a popular solution!
Step by stepSolved in 2 steps
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.Similar questions
- A chemist prepares a solution of barium chloride (BaC12) by measuring out 12.9 g of barium chloride into a 50. mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in mol/L of the chemist's barium chloride solution. Round your answer to 2 significant digits. mol/L Xarrow_forwardA chemist prepares a solution of barium chloride (BaCl₂) by measuring out 26.5 μmol of barium chloride into a 300. mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in mol/L of the chemist's barium chloride solution. Round your answer to 3 significant digits. mol L x10 Xarrow_forwardA chemistry student weighs out 0.0684 g of hypochlorous acid (HCIO) into a 250. mL volumetric flask and dilutes to the mark with distilled water. He plans to titrate the acid with 0.1700M NaOH solution. Calculate the volume of NaOH solution the student will need to add to reach the equivalence point. Be sure your answer has the correct number of significant digits. ml. Xarrow_forward
- A chemist prepares a solution of nickel(II) chloride (NiCl₂) by measuring out 18. g of nickel(II) chloride into a 200. mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in mol/L of the chemist's nickel(II) chloride solution. Round your answer to 2 significant digits. mol/L X 3arrow_forwardSuppose 10.4 g of copper(II) acetate is dissolved in 50. mL of a 0.80 M aqueous solution of sodium chromate. Calculate the final molarity of acetate anion in the solution. You can assume the volume of the solution doesn't change when the copper(II) acetate is dissolved in it. Round your answer to 2 significant digits. M x10 X Darrow_forwardA chemist prepares a solution of barium acetate BaC2H3O22 by measuring out 105.g of barium acetate into a 250.mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in /molL of the chemist's barium acetate solution. Round your answer to 3 significant digits.arrow_forward
- A chemist prepares a solution of calcium bromide (CaBr₂) by measuring out 34.7 μmol of calcium bromide into a 50. mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in mol/L of the chemist's calcium bromide solution. Round your answer to 2 significant digits. 0 mol L 0 X 3arrow_forwardA chemist prepares a solution of aluminum sulfate (Al₂(SO4)3) by measuring out 36.2 g of aluminum sulfate into a 150. mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in mol/L of the chemist's aluminum sulfate solution. Round your answer to 3 significant digits. mol/L 0 x10 Xarrow_forwardA chemist must prepare 550. mL of 1.00 M aqueous calcium bromide (CaBr₂) working solution. He'll do this by pouring out some 1.60 M aqueous calcium bromide stock solution into a graduated cylinder and diluting it with distilled water. Calculate the volume in mL of the calcium bromide stock solution that the chemist should pour out. Round your answer to 3 significant digits. OmL X Sarrow_forward
- A chemist prepares a solution of potassium iodide (KI) by measuring out 175. μmol of potassium iodide into a 200. mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in mmol/L of the chemist's potassium iodide solution. Round your answer to 3 significant digits. mmol L 0 x10 X 3arrow_forwardA chemist prepares a solution of potassium dichromate (K,Cr,O,) by measuring out 35. g of potassium dichromate into a 300. mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in mol/L of the chemist's potassium dichromate solution. Round your answer to 2 significant digits. alo | mol/Larrow_forwardA chemist prepares a solution of zinc oxalate (ZnC,0,) by weighing out 0.837 kg of zinc oxalate into a 100. mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in g/dL of the chemist's zinc oxalate solution. Be sure your answer has the correct number of significant digits. x10 TP 一arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- ChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage Learning
ChemistryChemistryISBN:9781259911156Author:Raymond Chang Dr., Jason Overby ProfessorPublisher:McGraw-Hill Education
Principles of Instrumental AnalysisChemistryISBN:9781305577213Author:Douglas A. Skoog, F. James Holler, Stanley R. CrouchPublisher:Cengage Learning 
Organic ChemistryChemistryISBN:9780078021558Author:Janice Gorzynski Smith Dr.Publisher:McGraw-Hill Education
Chemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage Learning
Elementary Principles of Chemical Processes, Bind...ChemistryISBN:9781118431221Author:Richard M. Felder, Ronald W. Rousseau, Lisa G. BullardPublisher:WILEY
Chemistry
Chemistry
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Cengage Learning
Chemistry
Chemistry
ISBN:9781259911156
Author:Raymond Chang Dr., Jason Overby Professor
Publisher:McGraw-Hill Education
Principles of Instrumental Analysis
Chemistry
ISBN:9781305577213
Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:Cengage Learning
Organic Chemistry
Chemistry
ISBN:9780078021558
Author:Janice Gorzynski Smith Dr.
Publisher:McGraw-Hill Education
Chemistry: Principles and Reactions
Chemistry
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:Cengage Learning
Elementary Principles of Chemical Processes, Bind...
Chemistry
ISBN:9781118431221
Author:Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:WILEY