How do you find the molality of solute in a solution? Given: A. Freezing Point of...
How do you find the molality of solute in a solution?
Given:
A. Freezing Point of Cyclohexane
1) Mass of beaker, test tube (g) - 131.344g
2) Freezing point from cooling curve - 6.9°C
B. Freezing point of cyclohexane plus solute
1) Mass of beaker, test tube, cyclohexane (g) - 140.589g
2) Mass of cyclohexane (g) - 9.242g
3) Mass of solute (g) - Trial 1 (0.208g) / Trial 2 (0.206g)
4) Freezing point from cooling curve - 2.1°C
*Not sure if this was needed
*Compound Analyzed - Naphthalene (128.1705 g/mol)
*Kf - 20.0
Homework Answers
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How do you find the molality of solute in a solution?
Given:
A. Freezing Point of...
A. Freezing Point of Cyclohexane (Solvent 1. Mass of beaker, test tube (g) 2. Freezing point,...
A. Freezing Point of Cyclohexane (Solvent 1. Mass of beaker, test tube (g) 2. Freezing point, from cooling curve 3. Instructor's approval of graph 33010 B. Freezing Point of Cyclohexane plus Unknown Solute Trial 1 Parts B.1, B.3) Unknown solute no. Trial 2 (Part B.4 Trial 3 Part B.5 1. Mass of beaker, test tube, cyclohexane (g) 2. Mass of cyclohexane (g) 3. Tared mass of added solute (g) 4. Freezing point, from cooling curve CC) 5. Instructor's approval of...
can someone finish this chart for me - Exреттеп тору > Molar Mass of a Solid...
can someone finish this chart for me
- Exреттеп тору > Molar Mass of a Solid Date Lob Sec Nome Desk No. A. Freezing Point of Cyclohexane (Solvent) 1. Mass of beaker, test tube ) 2. Freezing point. from cooling curve ( 20.150 6.7 Х 3. Instructor's approval of graph B. Freezing Point of Cyclohexane plus Unknown Solute Trial Unknown solute no (Parts B.I, B3) Trial 2 (Part 8.4) Trial (Part 8.5) 1. Mass of beaker, test tube, cyclohexane) 35.554...
U SR, test tube, apparatus, cyclohexane 2. Mass of flask, test tube, apparatus 3. Mass of...
U SR, test tube, apparatus, cyclohexane 2. Mass of flask, test tube, apparatus 3. Mass of cyclohexane 4. Freezing point, from cooling curve 203.239 g 7.9079 5.9°C B. Freezing Point of Cyclohexane plus Unknown Solute Unknown Solute Trial 1 Trial 2 Trial 3 1. Mass of cyclohexane 1.9029 8.152 8.40ly 2. Mass of solute, total Bolby 8.409 9.5989 3. Freezing point, (cooling curve) 1.8 C 2C 7°C 20° 7.9079 Calculations 1. K, for cyclohexane (pure solvent) 2. Freezing point change,...
Molar Mass of a Solute The freezing point of cyclohexane is 6.50°C. For cyclohexane solvent Kf=20.0....
Molar Mass of a Solute The freezing point of cyclohexane is 6.50°C. For cyclohexane solvent Kf=20.0. 0.147 g of an unknown solute is dissolved in 7.71 g of cyclohexane (C6H12). The freezing point of the solution was 3.38°C. Calculate the corresponding molar mass of the solute. g/mol 1homework pts Submit Answer Tries 0/5 To the above solution a further 0.139 g of the unknown is dissolved. The freezing point of the resulting solution was 0.85°C. Calculate the corresponding molar mass...
can some one complete the first page for me labeled data sheet we only did one...
can some one complete the first page for me labeled data sheet
we only did one trial we wont be completing trial 1
Data Sheet A. Freezing Point of Cyclohexane (Solvent) 1. Mass of flask, test tube, apparatus, cyclohexane 2. Mass of flask, test tube, apparatus 3. Mass of cyclohexane 4. Freezing point, from cooling curve 9.477 g B. Freezing Point of Cyclohexane plus Unknown Solute Unknown Solute D Trial 1 Trial 2 Trial 3 1. Mass of cyclohexane 9,4119...
You obtained the following graphical data from two experimental runs to determine the freezing point depression...
You obtained the following
graphical data from two experimental runs to determine the freezing
point depression constant for a pure solvent. The solution was made
up by adding 3.025 g of naphthalene, C10H8,
to 45.320 g of pure solvent.
1.What is the freezing point temperature of the pure solvent (in
oC)?
2.What is the solution freezing point temperature (in
oC)?
3.What is the freezing point depression, Tfp (in
oC)?
4.What is the molar mass of naphthalene (in g/mol)?
5.How many...
molecular weight moles of solute kg owater insolution molality of solution change in freezing point Naci...
molecular weight
moles of solute
kg owater insolution
molality of solution
change in freezing point
Naci KCI CaCl, Initial Freezing Point of Water Mass of water Mass of Solute Molecular Weight of solute moles of solute kg of water in solution molality of solution Final Freezing Point of solution Change in Freezing Point kr from part A i for the solute(theoretical) i for the solute(experimental) 9 9 9 g/mole g/ mole mole mole kal kg m m -31°C 3 °C...
lewis. Du noc, mint 5 homework point(s) Molar Mass of a Solute The freezing point of...
lewis. Du noc, mint 5 homework point(s) Molar Mass of a Solute The freezing point of cyclohexane is 6.50°C. For cyclohexane solvent ke-20.0. 0.141 g of an unknown solute is dissolved in 7.82 g of cyclohexane (C6H12). The freezing point of the solution was 3.30°C. Calculate the corresponding molar mass of the solute. g/mol 1homework pts Submit Answer Tries 0/5 To the above solution a further 0.122 g of the unknown is dissolved. The freezing point of the resulting solution...
Molar Mass of a Solute The freezing point of cyclohexane is 6.50°C. For cyclohexane solvent Kp=20.0....
Molar Mass of a Solute The freezing point of cyclohexane is 6.50°C. For cyclohexane solvent Kp=20.0. 0.141 g of an unknown solute is dissolved in 7.90 g of cyclohexane (C6H12). The freezing point of the solution was 3.33ºC. Calculate the corresponding molar mass of the solute. g/mol 1homework pts Submit Answer Tries 0/5 To the above solution a further 0.132 g of the unknown is dissolved. The freezing point of the resulting solution was 0.75°C. Calculate the corresponding molar mass...
What is the unknown solute in a solution of benzophenone with using freezing point depression? In...
What is the unknown solute in a solution of benzophenone with using freezing point depression? In this lab, the test tube with the solution was put in a hot water bath on a hot plate. The test tube was in a beaker. Mass of benzophenone: 6.863 g Mass unknown: 0.752 g I placed benzophenone in a test tube in the hot water bath. Once it melted, I recorded 48.5 C. I stirred the test tube and the temperature lowered to...
A. Freezing Point of Cyclohexane (Solvent 1. Mass of beaker, test tube (g) 2. Freezing point, from cooling curve 3. Instructor's approval of graph 33010 B. Freezing Point of Cyclohexane plus Unknown Solute Trial 1 Parts B.1, B.3) Unknown solute no. Trial 2 (Part B.4 Trial 3 Part B.5 1. Mass of beaker, test tube, cyclohexane (g) 2. Mass of cyclohexane (g) 3. Tared mass of added solute (g) 4. Freezing point, from cooling curve CC) 5. Instructor's approval of...
can someone finish this chart for me
- Exреттеп тору > Molar Mass of a Solid Date Lob Sec Nome Desk No. A. Freezing Point of Cyclohexane (Solvent) 1. Mass of beaker, test tube ) 2. Freezing point. from cooling curve ( 20.150 6.7 Х 3. Instructor's approval of graph B. Freezing Point of Cyclohexane plus Unknown Solute Trial Unknown solute no (Parts B.I, B3) Trial 2 (Part 8.4) Trial (Part 8.5) 1. Mass of beaker, test tube, cyclohexane) 35.554...
U SR, test tube, apparatus, cyclohexane 2. Mass of flask, test tube, apparatus 3. Mass of cyclohexane 4. Freezing point, from cooling curve 203.239 g 7.9079 5.9°C B. Freezing Point of Cyclohexane plus Unknown Solute Unknown Solute Trial 1 Trial 2 Trial 3 1. Mass of cyclohexane 1.9029 8.152 8.40ly 2. Mass of solute, total Bolby 8.409 9.5989 3. Freezing point, (cooling curve) 1.8 C 2C 7°C 20° 7.9079 Calculations 1. K, for cyclohexane (pure solvent) 2. Freezing point change,...
Molar Mass of a Solute The freezing point of cyclohexane is 6.50°C. For cyclohexane solvent Kf=20.0. 0.147 g of an unknown solute is dissolved in 7.71 g of cyclohexane (C6H12). The freezing point of the solution was 3.38°C. Calculate the corresponding molar mass of the solute. g/mol 1homework pts Submit Answer Tries 0/5 To the above solution a further 0.139 g of the unknown is dissolved. The freezing point of the resulting solution was 0.85°C. Calculate the corresponding molar mass...
can some one complete the first page for me labeled data sheet
we only did one trial we wont be completing trial 1
Data Sheet A. Freezing Point of Cyclohexane (Solvent) 1. Mass of flask, test tube, apparatus, cyclohexane 2. Mass of flask, test tube, apparatus 3. Mass of cyclohexane 4. Freezing point, from cooling curve 9.477 g B. Freezing Point of Cyclohexane plus Unknown Solute Unknown Solute D Trial 1 Trial 2 Trial 3 1. Mass of cyclohexane 9,4119...
You obtained the following
graphical data from two experimental runs to determine the freezing
point depression constant for a pure solvent. The solution was made
up by adding 3.025 g of naphthalene, C10H8,
to 45.320 g of pure solvent.
1.What is the freezing point temperature of the pure solvent (in
oC)?
2.What is the solution freezing point temperature (in
oC)?
3.What is the freezing point depression, Tfp (in
oC)?
4.What is the molar mass of naphthalene (in g/mol)?
5.How many...
molecular weight
moles of solute
kg owater insolution
molality of solution
change in freezing point
Naci KCI CaCl, Initial Freezing Point of Water Mass of water Mass of Solute Molecular Weight of solute moles of solute kg of water in solution molality of solution Final Freezing Point of solution Change in Freezing Point kr from part A i for the solute(theoretical) i for the solute(experimental) 9 9 9 g/mole g/ mole mole mole kal kg m m -31°C 3 °C...
lewis. Du noc, mint 5 homework point(s) Molar Mass of a Solute The freezing point of cyclohexane is 6.50°C. For cyclohexane solvent ke-20.0. 0.141 g of an unknown solute is dissolved in 7.82 g of cyclohexane (C6H12). The freezing point of the solution was 3.30°C. Calculate the corresponding molar mass of the solute. g/mol 1homework pts Submit Answer Tries 0/5 To the above solution a further 0.122 g of the unknown is dissolved. The freezing point of the resulting solution...
Molar Mass of a Solute The freezing point of cyclohexane is 6.50°C. For cyclohexane solvent Kp=20.0. 0.141 g of an unknown solute is dissolved in 7.90 g of cyclohexane (C6H12). The freezing point of the solution was 3.33ºC. Calculate the corresponding molar mass of the solute. g/mol 1homework pts Submit Answer Tries 0/5 To the above solution a further 0.132 g of the unknown is dissolved. The freezing point of the resulting solution was 0.75°C. Calculate the corresponding molar mass...
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