Suggest an explanation for the observations that ethanol, C2H5OH, is completely miscible with water and that ethanethiol...
Suggest an explanation for the observations that ethanol, C2H5OH, is completely miscible with water and that ethanethiol, C2H5SH, is soluble only to the extent of 1.5 g per 100 mL of water.
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Suggest an explanation for the observations that ethanol, C2H5OH, is completely miscible with water and that ethanethiol...
With a good explanation please. An amount of 3.355 g ethanol C2H5OH(1) is burned completely in...
With a good explanation please.
An amount of 3.355 g ethanol C2H5OH(1) is burned completely in a calorimeter at 298.15 K. The heat produced is 99.472 kJ. It can be assumed that the measurement takes place under constant pressure of 1 bar. C2H5OH(1) + 302(g) + 2CO2(g) + 3H2O(1) 3a. (10 points) Calculate the standard enthalpy of reaction AHR based on the calorimeter mea- surement.
The combustion of liquid ethanol (C2H5OH) produces carbon dioxide and water. After 4.61 mL of ethanol...
The combustion of liquid ethanol (C2H5OH) produces carbon dioxide and water. After 4.61 mL of ethanol (density=0.789gml−1) was allowed to burn in the presence of 15.60 g of oxygen gas, 3.73 mL of water (density=1.00gml−1) was collected. Part A Determine the limiting reactant for the reaction. (Hint: Write a balanced equation for the combustion of ethanol.) Determine the limiting reactant for the reaction. (: Write a balanced equation for the combustion of ethanol.) ethanol oxygen Part B Determine the theoretical...
2. Why do ionic substances with higher lattice energies tend to be less soluble in water...
2. Why do ionic substances with higher lattice energies tend to be less soluble in water than substances with lower lattice energies? 3. Which would you expect to have the larger hydration energy, SO or CIOA? Explain. 4. Ethyl alcohol, CH CH2OH, is miscible with water at 20°C, but pentyl alcohol, CH3CH2CH2CH2CH2OH, is soluble in water only to the extent of 2.7 g/100 ml. Explain.
Chapter 15 Classroom Assignment Write the one equation for dissolution and the solubility product of the following...
Chapter 15 Classroom Assignment Write the one equation for dissolution and the solubility product of the following slightly soluble ionic compounds pression for each PCI PCI,() Pb(aq) + 2Cl(a). K - P C AS A S) 2Ag (aq) + (aq). K - Ag Tis 0:2 gives solubilities of the following compounds in grams per 100 ml of water. Because these compounds are only slightly soluble, assume that the volume does not change on dissolution and calculate the solubility product for...
Observations Record observations including appearance of solution (clear, cloudy), color(s) of liquid and s...
Observations Record observations including appearance of solution (clear, cloudy), color(s) of liquid and solid phases, formation of gas, etc. Write a chemical equation for each to describe the reaction observed. Refer to the procedure for hints. A. Preparation of Copper(ll) Nitrate B. Preparation of Copper(1) Hydroxide C. Preparation of Copper(ll) Oxide D. Preparation of Copper(II) Chloride E. 1. Preparation of Copper Metal 2. Reaction of Aluminum with Hydrochloric acid to give Aluminum Chloride and Hydrogen gas. EXPERIMENT SA THE MANY...
Data and Observations Record color and temperature changes that occurred during the reaction, as well as...
Data and Observations Record color and temperature changes that occurred during the reaction, as well as the weight and melting point of the product. Attach the IR spectrum to your report, and give the result of the 2,4-dinitrophenylhydrazine test. Calculations and Graphs Write a balanced equation for the reaction and calculate the per cent yield Conclusions 1. How many carbonyl groups in the benzil were reduced? Give the experimental evidence for your answer. (HINTS: Refer to your melting point, 2,4-dinitrophenylhydrazine...
need help Insert the missing coefficients to completely balance each chemical equation. equation...
need help
Insert the missing coefficients to completely balance each chemical equation. equation 1: S+6 HNO, H,SO, + NO, +H,0 equation 2: 3 Cu + 8 HNO, Cu(NO), + NO + H2O We were unable to transcribe this imageBalance the equations by inserting coefficients as needed. equation 1: Sb + Cl, — SbCl, equation 2: Mg, N, + HCI — MgCl, +NH, Select the equation that best describes the reaction. O A+B, AB O 4 A +8 B — 4AB,...
PREPARATION OF PHARMACEUTICALS - Fischer Esterification Reactions Q: Calculate the expected mass of both methyl salicylate and aspirin assuming 100% yield. EXPERIMENT7 PREPARATION OF PHARMACEUTICALS...
PREPARATION OF PHARMACEUTICALS - Fischer Esterification
Reactions
Q: Calculate the expected mass of both methyl salicylate and
aspirin assuming 100% yield.
EXPERIMENT7 PREPARATION OF PHARMACEUTICALS Fischer Esterification Reactions Almost 2500 years ago, physicians such as Hippocrates recommended that patients chew on the bark of the willow to alleviate pain. The active ingredient in willow bark was found to be salicin, a compound made of a molecule of salicyl alcohol bonded to a p-D-glucose molecule. In the stomach, the bond between...
ALT CHEM 125 Name Determining the Ksp of Calcium Hydroxide Calcium hydroxide is an ionie solid...
ALT CHEM 125 Name Determining the Ksp of Calcium Hydroxide Calcium hydroxide is an ionie solid that is sparingly soluble in water. A saturated, aqueous, solution of Ca(OH), is represented in equation form as shown below. Ca(OH)2 (5) --- Ca' (aq) + 2OH(aq) The solubility product expression describes, in mathematical terms, the equilibrium that is established between the solid substance and its dissolved ions in an aqueous system. The equilibrium expression for calcium hydroxide is shown below. Kp - [Ca][OHT...
Working on the questions at the end of this lab report (see above). I need help answering questio...
Working on the questions at the end of this lab report
(see above). I need help answering questions 2, 3, and 4 completely
and thoroughly. Thank you!
s, until the I hexano 1 clean disti CYCLOHEXENE from CYCLOHEXANOL be dehydrated with solfuric acid to yield cyclohexene and waterf Add a 0°C (record ct and cal H,SO + H20 ainer. s in purification of any crude product are (a) the preliminary separation of the product from the reaction mixture by distillation...
With a good explanation please.
An amount of 3.355 g ethanol C2H5OH(1) is burned completely in a calorimeter at 298.15 K. The heat produced is 99.472 kJ. It can be assumed that the measurement takes place under constant pressure of 1 bar. C2H5OH(1) + 302(g) + 2CO2(g) + 3H2O(1) 3a. (10 points) Calculate the standard enthalpy of reaction AHR based on the calorimeter mea- surement.
2. Why do ionic substances with higher lattice energies tend to be less soluble in water than substances with lower lattice energies? 3. Which would you expect to have the larger hydration energy, SO or CIOA? Explain. 4. Ethyl alcohol, CH CH2OH, is miscible with water at 20°C, but pentyl alcohol, CH3CH2CH2CH2CH2OH, is soluble in water only to the extent of 2.7 g/100 ml. Explain.
Chapter 15 Classroom Assignment Write the one equation for dissolution and the solubility product of the following slightly soluble ionic compounds pression for each PCI PCI,() Pb(aq) + 2Cl(a). K - P C AS A S) 2Ag (aq) + (aq). K - Ag Tis 0:2 gives solubilities of the following compounds in grams per 100 ml of water. Because these compounds are only slightly soluble, assume that the volume does not change on dissolution and calculate the solubility product for...
Observations Record observations including appearance of solution (clear, cloudy), color(s) of liquid and solid phases, formation of gas, etc. Write a chemical equation for each to describe the reaction observed. Refer to the procedure for hints. A. Preparation of Copper(ll) Nitrate B. Preparation of Copper(1) Hydroxide C. Preparation of Copper(ll) Oxide D. Preparation of Copper(II) Chloride E. 1. Preparation of Copper Metal 2. Reaction of Aluminum with Hydrochloric acid to give Aluminum Chloride and Hydrogen gas. EXPERIMENT SA THE MANY...
Data and Observations Record color and temperature changes that occurred during the reaction, as well as the weight and melting point of the product. Attach the IR spectrum to your report, and give the result of the 2,4-dinitrophenylhydrazine test. Calculations and Graphs Write a balanced equation for the reaction and calculate the per cent yield Conclusions 1. How many carbonyl groups in the benzil were reduced? Give the experimental evidence for your answer. (HINTS: Refer to your melting point, 2,4-dinitrophenylhydrazine...
need help
Insert the missing coefficients to completely balance each chemical equation. equation 1: S+6 HNO, H,SO, + NO, +H,0 equation 2: 3 Cu + 8 HNO, Cu(NO), + NO + H2O We were unable to transcribe this imageBalance the equations by inserting coefficients as needed. equation 1: Sb + Cl, — SbCl, equation 2: Mg, N, + HCI — MgCl, +NH, Select the equation that best describes the reaction. O A+B, AB O 4 A +8 B — 4AB,...
PREPARATION OF PHARMACEUTICALS - Fischer Esterification
Reactions
Q: Calculate the expected mass of both methyl salicylate and
aspirin assuming 100% yield.
EXPERIMENT7 PREPARATION OF PHARMACEUTICALS Fischer Esterification Reactions Almost 2500 years ago, physicians such as Hippocrates recommended that patients chew on the bark of the willow to alleviate pain. The active ingredient in willow bark was found to be salicin, a compound made of a molecule of salicyl alcohol bonded to a p-D-glucose molecule. In the stomach, the bond between...
ALT CHEM 125 Name Determining the Ksp of Calcium Hydroxide Calcium hydroxide is an ionie solid that is sparingly soluble in water. A saturated, aqueous, solution of Ca(OH), is represented in equation form as shown below. Ca(OH)2 (5) --- Ca' (aq) + 2OH(aq) The solubility product expression describes, in mathematical terms, the equilibrium that is established between the solid substance and its dissolved ions in an aqueous system. The equilibrium expression for calcium hydroxide is shown below. Kp - [Ca][OHT...
Working on the questions at the end of this lab report
(see above). I need help answering questions 2, 3, and 4 completely
and thoroughly. Thank you!
s, until the I hexano 1 clean disti CYCLOHEXENE from CYCLOHEXANOL be dehydrated with solfuric acid to yield cyclohexene and waterf Add a 0°C (record ct and cal H,SO + H20 ainer. s in purification of any crude product are (a) the preliminary separation of the product from the reaction mixture by distillation...
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