Homework Help is Here – Start Your Trial Now!
Science
Chemistry
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.

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.

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...
See similar textbooks
icon
Related questions
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.
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
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Knowledge Booster
Measurement
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
  • SEE MORE QUESTIONS
Recommended textbooks for you
Chemistry
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
Chemistry
Chemistry
Chemistry
ISBN:
9781259911156
Author:
Raymond Chang Dr., Jason Overby Professor
Publisher:
McGraw-Hill Education
Principles of Instrumental Analysis
Principles of Instrumental Analysis
Chemistry
ISBN:
9781305577213
Author:
Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:
Cengage Learning
Organic Chemistry
Organic Chemistry
Chemistry
ISBN:
9780078021558
Author:
Janice Gorzynski Smith Dr.
Publisher:
McGraw-Hill Education
Chemistry: Principles and Reactions
Chemistry: Principles and Reactions
Chemistry
ISBN:
9781305079373
Author:
William L. Masterton, Cecile N. Hurley
Publisher:
Cengage Learning
Elementary Principles of Chemical Processes, Bind…
Elementary Principles of Chemical Processes, Bind…
Chemistry
ISBN:
9781118431221
Author:
Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:
WILEY
SEE MORE TEXTBOOKS