Podcast
Questions and Answers
What is the primary purpose of volumetric analysis?
What is the primary purpose of volumetric analysis?
Which of the following accurately describes a titrant?
Which of the following accurately describes a titrant?
What method can be used to detect the endpoint in an oxidation-reduction titration?
What method can be used to detect the endpoint in an oxidation-reduction titration?
Which titration method is typically used for weak acids with strong bases?
Which titration method is typically used for weak acids with strong bases?
Signup and view all the answers
In the Fagan method of precipitation titration, what type of indicator is used?
In the Fagan method of precipitation titration, what type of indicator is used?
Signup and view all the answers
What is a primary standard in the context of titration?
What is a primary standard in the context of titration?
Signup and view all the answers
What process involves determining the exact concentration of a solution of unknown concentration?
What process involves determining the exact concentration of a solution of unknown concentration?
Signup and view all the answers
Which is the correct definition of the term 'end point' in titration?
Which is the correct definition of the term 'end point' in titration?
Signup and view all the answers
What defines the end point in volumetric analysis?
What defines the end point in volumetric analysis?
Signup and view all the answers
Which of the following is NOT a requirement for a reaction to be used in volumetric analysis?
Which of the following is NOT a requirement for a reaction to be used in volumetric analysis?
Signup and view all the answers
Which type of reaction involves a neutralization between hydrogen and hydroxyl ions?
Which type of reaction involves a neutralization between hydrogen and hydroxyl ions?
Signup and view all the answers
What type of reactions depend on the combination of ions to form a simple precipitate?
What type of reactions depend on the combination of ions to form a simple precipitate?
Signup and view all the answers
Which indicator reaction is typically associated with acidimetry?
Which indicator reaction is typically associated with acidimetry?
Signup and view all the answers
In complex formation reactions, what is the outcome of the combination of ions?
In complex formation reactions, what is the outcome of the combination of ions?
Signup and view all the answers
What does the equivalence point indicate in volumetric analysis?
What does the equivalence point indicate in volumetric analysis?
Signup and view all the answers
Which of these is an example of a redox reaction?
Which of these is an example of a redox reaction?
Signup and view all the answers
What is the formula for calculating molarity (M)?
What is the formula for calculating molarity (M)?
Signup and view all the answers
Which unit is used to express parts per million (ppm)?
Which unit is used to express parts per million (ppm)?
Signup and view all the answers
What does the equation VA x NA = VB x NB represent?
What does the equation VA x NA = VB x NB represent?
Signup and view all the answers
Which of the following equations represents dilution?
Which of the following equations represents dilution?
Signup and view all the answers
Which of the following definitions describes molality (m)?
Which of the following definitions describes molality (m)?
Signup and view all the answers
What does the term 'normality' (N) refer to?
What does the term 'normality' (N) refer to?
Signup and view all the answers
What remains constant during the process of dilution?
What remains constant during the process of dilution?
Signup and view all the answers
Which expression correctly calculates % mass (% m/m)?
Which expression correctly calculates % mass (% m/m)?
Signup and view all the answers
Study Notes
Course Information
- Course title: Basics of Analytical Chemistry
- Course code: chm201, chm219B
- Instructor: Dr. Ibrahem M A Hasan
- University: South Valley University, Faculty of Science, Qena
Assessment
- Theoretical: 40 marks
- Practical: 20 marks
- Oral: 10 marks
- Midterm: 10 marks
- Continuous Assessment: 20 marks
- Total: 100 marks
Weekly Hours
- Theoretical: 1 hour
- Practical: 3 hours
- Total Credit: 4
- Credit Units: 2
Textbooks
- Fundamentals of Analytical Chemistry, 10th edition, 2022, by Douglas A. Skoog, Donald M. West, F. James Holler, and Stanley R. Crouch, Cengage Inc., MA, USA.
- Quantitative Chemical Analysis, 9th edition, 2016, by Daniel C. Harris, Charles A. Lucy, W. H. Freeman and Company, NY, USA.
Syllabus
- Volumetric analysis
- Acid-base titrations
- Strong acid (SA) with strong base (SB)
- Weak base (WB) with SA
- Weak acid (WA) with SB
- WA with WB
- Polybasic acids with SB
- Anions of WA with SA
- Precipitation titrations
- Introduction
- Fagan method (use of adsorption indicators)
- Liebig's method (turbidity method)
- Oxidation-Reduction titrations
- Introduction
- End point detection
- Complex formation titrations
Volumetric Analysis
- Definition of some terms
- Classification of reactions in volumetric analysis
- Acid-base (neutralization)
- Precipitation
- Reduction-oxidation
- Complexometric
- Acidimetry: titration of free bases or salts of weak acids with standard acid.
- Alkalimetry: titration of free acids or salts of weak bases with standard base.
- These reactions involve the combination of hydrogen and hydroxyl ions to form water. (HCl + NaOH → NaCl + H₂O)
- Complex formation reactions: depend on the combination of ions, forming slightly dissociated ionic compounds.
- Examples: 2CN⁻ + Ag⁺ → [Ag(CN)₂]⁻, Cu(H₂O)₄²⁺ + 2EDTA → [Cu(EDTA)₂]²⁻ + 4H₂O (EDTA: Ethylenediamine tetraacetic acid)
- Precipitation reactions: depend on the combination of ions to form a precipitate.
- Example: Ag⁺ + NO₃⁻ + Na⁺ + Cl⁻ → AgCl + Na⁺ + NO₃⁻
- Reduction-oxidation (Redox) reactions: involve a change in valences or transfer of electrons.
- Example: MnO₄⁻ + 5Fe²⁺ + 8H⁺ → Mn²⁺ + 5Fe³⁺ + 4H₂O
Concentration of Solution
- Units
- Percent composition (% m/m, % v/v, % m/v)
- Molarity (M)
- Molality (m)
- Parts per million (ppm)
- Mole fraction (χ)
- Mass per volume (g/L)
- Normality (N)
Computing Results
- At the end point:
- Normality (N) = gram equivalents/liters
- Normality (N) = milligram equivalents/milliliters (ml)
- Number of mg equivalents = Number of ml x Normality
- When a standard solution (A) reacts with an unknown solution (B):
- VA × NA = VB × NB or VA × MA = VB × MB
- Where VA and VB are reacted volumes of solutions A and B, NA and NB are normalities of solutions A and B
Dilution
- Dilution: adding extra solvent to decrease solution concentration.
- Amount of solute remains constant.
- Concentration formula for dilution: (Conc₁ × Vol₁) = (Conc₂ × Vol₂)
- Applicable to molarity or percentage units
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Related Documents
Description
Assess your understanding of the fundamentals of Analytical Chemistry with this quiz. Covering topics like volumetric analysis and acid-base titrations, this quiz will help reinforce key concepts from the syllabus. Perfect for students in the course CHM201.
