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Written work 4 Factors affecting Solublity and Colligative Properties NOTE: DO NOT WRITE ANYTHING ON THIS PAPER. Write your answers on a paper. I. Graphing Activity on Colligative Properties Objectives: - To understand and analyze the four colligative properties by graphing the relationship between $ x $ and $ y $ values. - To interpret graphs and answer conceptual questions related to colligative properties. Part A: Vapor Pressure Lowering ( NaCl in Water) Instructions: 1. Plot the following data on a graph. - X-axis: Mole fraction of NaCl - Y -axis: Vapor pressure of water (kPa) \begin{tabular}{|l|l|} \hline Mole Fraction of NaCl & Vapor Pressure of Water (kPa) \\ \hline 0.0 & 30 \\ \hline 0.1 & 28 \\ \hline 0.18 & 26 \\ \hline 0.3 & 24 \\ \hline 0.45 & 22 \\ \hline 0.5 & 20 \\ \hline 0.62 & 18 \\ \hline 0.73 & 16 \\ \hline 0.8 & 14 \\ \hline 0.86 & 12 \\ \hline 1.0 & 10 \\ \hline \end{tabular} Questions: 1. True or False: As the mole fraction of NaCl increases, the vapor pressure of water decreases. 2. Yes or No: Is the relationship between mole fraction of NaCl and vapor pressure of water direct? 3. True'or False: NaCl is a non-volatile solute that decreases the vapor pressure of water. Part B: Boiling Point Elevation (Sugar in Water) Instructions: 1. Plot the following data on a graph. - X-axis: Molality of Sugar $ \left(\mathrm{C}_{12} \mathrm{H}_{22} \mathrm{O}_{11}\right) $ - $ Y $-axis: Boiling point of the solution $ \left({ }^{\circ} \mathrm{C}\right. $ ) \begin{tabular}{|l|l|} \hline Molality $ (\mathrm{m}) $ of Sugar & Boiling Point $ \left({ }^{\circ} \mathrm{C}\right) $ \\ \hline 0.0 & 100.2 \\ \hline 0.2 & 100.4 \\ \hline 0.4 & 101.8 \\ \hline 0.6 & 101.2 \\ \hline 0.8 & 101.6 \\ \hline 1.0 & 102.5 \\ \hline 1.2 & 1024 \\ \hline 1.4 & 103.8 \\ \hline 1.6 & 103.2 \\ \hline 1.8 & 103.6 \\ \hline 2.0 & 104.0 \\ \hline \end{tabular} Questions: 1. True or False: Boiling point increases as molality of sugar increases. 2. Yes or No: Does adding more sugar raise the boiling point of the solution?

          Written work 4
Factors affecting Solublity and Colligative Properties NOTE: DO NOT WRITE ANYTHING ON THIS PAPER. Write your answers on a paper.
I.

Graphing Activity on Colligative Properties Objectives:
- To understand and analyze the four colligative properties by graphing the relationship between \( x \) and \( y \) values.
- To interpret graphs and answer conceptual questions related to colligative properties.
Part A: Vapor Pressure Lowering ( NaCl in Water) Instructions:
1. Plot the following data on a graph.
- X-axis: Mole fraction of NaCl
- Y -axis: Vapor pressure of water (kPa)
\begin{tabular}{|l|l|}
\hline Mole Fraction of NaCl & Vapor Pressure of Water (kPa) \\
\hline 0.0 & 30 \\
\hline 0.1 & 28 \\
\hline 0.18 & 26 \\
\hline 0.3 & 24 \\
\hline 0.45 & 22 \\
\hline 0.5 & 20 \\
\hline 0.62 & 18 \\
\hline 0.73 & 16 \\
\hline 0.8 & 14 \\
\hline 0.86 & 12 \\
\hline 1.0 & 10 \\
\hline
\end{tabular}

Questions:
1. True or False: As the mole fraction of NaCl increases, the vapor pressure of water decreases.
2. Yes or No: Is the relationship between mole fraction of NaCl and vapor pressure of water direct?
3. True'or False: NaCl is a non-volatile solute that decreases the vapor pressure of water.
Part B: Boiling Point Elevation (Sugar in Water)
Instructions:
1. Plot the following data on a graph.
- X-axis: Molality of Sugar \( \left(\mathrm{C}_{12} \mathrm{H}_{22} \mathrm{O}_{11}\right) \)
- \( Y \)-axis: Boiling point of the solution \( \left({ }^{\circ} \mathrm{C}\right. \) )
\begin{tabular}{|l|l|}
\hline Molality \( (\mathrm{m}) \) of Sugar & Boiling Point \( \left({ }^{\circ} \mathrm{C}\right) \) \\
\hline 0.0 & 100.2 \\
\hline 0.2 & 100.4 \\
\hline 0.4 & 101.8 \\
\hline 0.6 & 101.2 \\
\hline 0.8 & 101.6 \\
\hline 1.0 & 102.5 \\
\hline 1.2 & 1024 \\
\hline 1.4 & 103.8 \\
\hline 1.6 & 103.2 \\
\hline 1.8 & 103.6 \\
\hline 2.0 & 104.0 \\
\hline
\end{tabular}

Questions:
1. True or False: Boiling point increases as molality of sugar increases.
2. Yes or No: Does adding more sugar raise the boiling point of the solution?

$Written work 4 Factors affecting Solublity and Colligative Properties NOTE: DO NOT WRITE ANYTHING ON THIS PAPER. Write your answers on a paper. I. Graphing Activity on Colligative Properties Objectives: - To understand and analyze the four colligative properties by graphing the relationship between x and y values. - To interpret graphs and answer conceptual questions related to colligative properties. Part A: Vapor Pressure Lowering ( NaCl in Water) Instructions: 1. Plot the following data on a graph. - X-axis: Mole fraction of NaCl - Y -axis: Vapor pressure of water (kPa) Mole Fraction of NaCl Vapor Pressure of Water (kPa) 0.0 30 0.1 28 0.18 26 0.3 24 0.45 22 0.5 20 0.62 18 0.73 16 0.8 14 0.86 12 1.0 10 Questions: 1. True or False: As the mole fraction of NaCl increases, the vapor pressure of water decreases. 2. Yes or No: Is the relationship between mole fraction of NaCl and vapor pressure of water direct? 3. True'or False: NaCl is a non-volatile solute that decreases the vapor pressure of water. Part B: Boiling Point Elevation (Sugar in Water) Instructions: 1. Plot the following data on a graph. - X-axis: Molality of Sugar (C12H22O11) - Y-axis: Boiling point of the solution (^∘C. ) Molality (m) of Sugar Boiling Point (^∘C) 0.0 100.2 0.2 100.4 0.4 101.8 0.6 101.2 0.8 101.6 1.0 102.5 1.2 1024 1.4 103.8 1.6 103.2 1.8 103.6 2.0 104.0 Questions: 1. True or False: Boiling point increases as molality of sugar increases. 2. Yes or No: Does adding more sugar raise the boiling point of the solution?$

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