5.2 Quantitative Analysis

• Quantitative analysis is essential for research, industry, healthcare, and environmental monitoring
• Arrange the following quantitative analysis methods from least to most complex:

  1️⃣ Titration

  2️⃣ Gravimetric Analysis

  3️⃣ Spectroscopy

  4️⃣ Chromatography
• Spectroscopy uses interactions with electromagnetic radiation to determine component concentrations
• Concentration is measured in moles per liter (mol/L), also known as molarity
• What does gravimetric analysis measure to determine substance quantity?

  Mass
• What is one field where quantitative analysis ensures quality control?

  Industry
• What does gravimetric analysis measure to determine substance quantity?

  Mass
• Quantitative analysis provides numerical values for specific chemical components in a sample

  True
• Steps to determine the concentration of an acid solution using titration:

  1️⃣ Add a few drops of indicator

  2️⃣ Slowly add a standard base solution

  3️⃣ Observe the color change of the indicator

  4️⃣ Calculate the concentration of the acid solution
• Match the field with its purpose in quantitative analysis:

  Research ↔️ Precise measurement of chemical substances

  Industry ↔️ Ensuring quality control

  Healthcare ↔️ Diagnosing diseases

  Environmental Monitoring ↔️ Tracking pollutants
• Gravimetric analysis measures the mass of a sample or product to determine substance quantity

  True
• What unit is used to quantify the amount of a substance?

  Moles
• What two concepts are used to calculate the quantity or concentration of a chemical substance in quantitative analysis?

  Moles and concentration
• Chromatography is used to separate and quantify substances in a mixture

  True
• Titration determines the concentration of a substance by reacting it with a standard solution
• Concentration is the amount of a substance per unit volume

  True
• Quantitative Analysis refers to the measurement and determination of the quantity or concentration
• Quantitative analysis in industry ensures quality control by quantifying material components


  True
• Titration determines the concentration of a substance by reacting it with a standard solution of known concentration
• Match the quantitative analysis method with its description:

  Titration ↔️ Reacts with a standard solution

  Gravimetric Analysis ↔️ Measures the mass of a sample

  Spectroscopy ↔️ Uses electromagnetic radiation

  Chromatography ↔️ Separates substances in a mixture
• The relationship between concentration, moles, and volume is expressed as $Concentration =$$\frac{Moles}{Volume}$


  True
• Spectroscopy uses interactions with electromagnetic radiation to determine component concentrations
• Match the field with its importance in quantitative analysis:

  Research ↔️ Enables precise measurements

  Industry ↔️ Ensures quality control

  Healthcare ↔️ Diagnoses diseases

  Environmental Monitoring ↔️ Tracks pollutants
• What is the unit for moles in quantitative analysis?

  mol
• What is the formula to calculate the concentration of an acid solution in titration?

  $Concentration_{acid} =$$\frac{Volume_{base} \times Concentration_{base}}{Volume_{acid}}$