1- Why are the solutions used in this laboratory made with distilled water? 2- What is...
1- Why are the solutions used in this laboratory made with distilled water?
2- What is the meaning and application of solubility product in this experiment?
please try to answer any general answer
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1- Why are the solutions used in this laboratory made with
distilled water?
2- What is...
EXTRATION OF BANANA DNA USING SALT, DISTILLED WATER, DETERGENT, PROTEOLYTIC AGENT(ex: Protease or pineapple juice) AND...
EXTRATION OF BANANA DNA USING SALT, DISTILLED WATER, DETERGENT, PROTEOLYTIC AGENT(ex: Protease or pineapple juice) AND 70-95% ISOPRORYL ALCOHOL. 1. What type of organisms and cells contain DNA? 2. What is the role of DNA in organisms? 3. Why would you want to extract the DNA from the organism? 4. In the procedure, why is the banana crushed or ground up into a pulp? 5. Why is detergent added to the pulp? 6. Look up the meaning of the term...
Date: Name: Experiment 10: Solubility Product PRE-LABORATORY QUESTIONS 1. Write the net ionic equilibrium equation for...
Date: Name: Experiment 10: Solubility Product PRE-LABORATORY QUESTIONS 1. Write the net ionic equilibrium equation for the dissolution of KHC.H06 in water. 2. Write the solubility product constant expression for KHC4H406. 3. Why is it not necessary to record the exact mass of KHT placed into the flasks? 4. The solubility of calcium oxalate, CaC204, is 4.8x10 mol/L. What is its Ksp? 5. The solubility product constant for MgF2 is 3.4x10-1. What is its solubility?
2. A solution is made as follows: 2.735g of Ca(NO), is dissolved in 1.000L of distilled...
2. A solution is made as follows: 2.735g of Ca(NO), is dissolved in 1.000L of distilled deionized water. What is the molar solubility of Ag,SO, in this solution of Ca(NO)? The pk., value of Ag,SO, is 4831. (Hint: You may need to write the equilibrium expression in terms of activities and ignore the contribution to ionic strength from Ag.SO.) (10 points)
2. A solution is made as follows: 2.735g of Ca(NO3)2 is dissolved in 1.000L of distilled...
2. A solution is made as follows: 2.735g of Ca(NO3)2 is dissolved in 1.000L of distilled deionized water. What is the molar solubility of Ag2SO4 in this solution of Ca(NO3)2? The pKip value of Ag2SO4 is 4.831. (Hint: You may need to write the equilibrium expression in terms of activities and ignore the contribution to ionic strength from Ag2SO.) (10 points)
Organic Chemistry Laboratory Work Preparation of Acetylsalicylic Acid (ASPIRIN) We used Sulfuric Acid for Quesiton 1....
Organic Chemistry Laboratory Work
Preparation of Acetylsalicylic Acid (ASPIRIN)
We used Sulfuric Acid for Quesiton 1.
1: What purpose does the acid in this experiment serve? 2: Why did you add water once the formation of aspirin is complete? 3: Why did you recrystallize the product from warm water?
e Experiment 4 Worksheet NAME DATE STUDENT NUMBER INSTRUCTOR 1 Explain why a person could die...
e Experiment 4 Worksheet NAME DATE STUDENT NUMBER INSTRUCTOR 1 Explain why a person could die of dehydration by drinking enough 10% salt solution. Keep in mind (a) osmosis, and (b) solutions of the body have an osmotic pressure equal to a 0 89% salt solution. 2. What process would occur to cells in tissue that is injected with distilled water? Why? 3. What was the principal use of calcium sulfate, (CasOsh H2O, in hospitals? (Materials having less weight are...
ATA LABORATORY 14 uvations ELECTROCHEMICAL CELLS List any observations made during the experiment, spills, disconnects, wrome. electrodes, etc. wrong solutions,wrong Red Probe Black Probe Cell #...
ATA LABORATORY 14 uvations ELECTROCHEMICAL CELLS List any observations made during the experiment, spills, disconnects, wrome. electrodes, etc. wrong solutions,wrong Red Probe Black Probe Cell # | Electrode | Solution | Electrode | Solution | Voltage | Cathode 2 b4 4 in in Laboratory 14/ Electrochemistry 193 10
ATA LABORATORY 14 uvations ELECTROCHEMICAL CELLS List any observations made during the experiment, spills, disconnects, wrome. electrodes, etc. wrong solutions,wrong Red Probe Black Probe Cell # | Electrode | Solution | Electrode...
techniques. 2. Briefly explain each of the following. (1) Why are all of the solutions used in this experiment 1.0...
techniques. 2. Briefly explain each of the following. (1) Why are all of the solutions used in this experiment 1.0 x 10-M in HNO3? (2) What are the hazards of using solutions that are 1.0 x 10 M in HNO3?
need help with questions 3,4,5 Laboratory Questions: Saturated Solutions The data below was collected in an...
need help with questions 3,4,5
Laboratory Questions: Saturated Solutions The data below was collected in an experiment to determine the solublity of sodium nitrate at 20 C. Total Volume of Water (mL) Saturation Temp (C Solubility (g salt/100g water) 3.50 139.3 78.0 3.75 70.0 4.00 60.0 121.8 4.25 52.0 4.50 45.0 08. 3 4.75 5.00 36.0 Na NO3 73 1. If 4.8739 g of NaNO, was used, calculate the solubility in units of g NaNO,/100 g water at each saturation...
1. Describe the changes in your potato sample when placed in distilled water. Based on these...
1. Describe the changes in your potato sample when placed in distilled water. Based on these changes, was the water hypertonic, isotonic, or hypotonic compared to the cells of the potato? Explain your reasoning in terms of the flow of water into or out of the potato cells. 2, Describe the changes in your potato sample when placed in 0.9% NaCl solution. Based on these changes, was the 0.9% NaCl hypertonic, isotonic, or hypotonic compared to the cells of the...
Date: Name: Experiment 10: Solubility Product PRE-LABORATORY QUESTIONS 1. Write the net ionic equilibrium equation for the dissolution of KHC.H06 in water. 2. Write the solubility product constant expression for KHC4H406. 3. Why is it not necessary to record the exact mass of KHT placed into the flasks? 4. The solubility of calcium oxalate, CaC204, is 4.8x10 mol/L. What is its Ksp? 5. The solubility product constant for MgF2 is 3.4x10-1. What is its solubility?
2. A solution is made as follows: 2.735g of Ca(NO), is dissolved in 1.000L of distilled deionized water. What is the molar solubility of Ag,SO, in this solution of Ca(NO)? The pk., value of Ag,SO, is 4831. (Hint: You may need to write the equilibrium expression in terms of activities and ignore the contribution to ionic strength from Ag.SO.) (10 points)
2. A solution is made as follows: 2.735g of Ca(NO3)2 is dissolved in 1.000L of distilled deionized water. What is the molar solubility of Ag2SO4 in this solution of Ca(NO3)2? The pKip value of Ag2SO4 is 4.831. (Hint: You may need to write the equilibrium expression in terms of activities and ignore the contribution to ionic strength from Ag2SO.) (10 points)
Organic Chemistry Laboratory Work
Preparation of Acetylsalicylic Acid (ASPIRIN)
We used Sulfuric Acid for Quesiton 1.
1: What purpose does the acid in this experiment serve? 2: Why did you add water once the formation of aspirin is complete? 3: Why did you recrystallize the product from warm water?
e Experiment 4 Worksheet NAME DATE STUDENT NUMBER INSTRUCTOR 1 Explain why a person could die of dehydration by drinking enough 10% salt solution. Keep in mind (a) osmosis, and (b) solutions of the body have an osmotic pressure equal to a 0 89% salt solution. 2. What process would occur to cells in tissue that is injected with distilled water? Why? 3. What was the principal use of calcium sulfate, (CasOsh H2O, in hospitals? (Materials having less weight are...
ATA LABORATORY 14 uvations ELECTROCHEMICAL CELLS List any observations made during the experiment, spills, disconnects, wrome. electrodes, etc. wrong solutions,wrong Red Probe Black Probe Cell # | Electrode | Solution | Electrode | Solution | Voltage | Cathode 2 b4 4 in in Laboratory 14/ Electrochemistry 193 10
ATA LABORATORY 14 uvations ELECTROCHEMICAL CELLS List any observations made during the experiment, spills, disconnects, wrome. electrodes, etc. wrong solutions,wrong Red Probe Black Probe Cell # | Electrode | Solution | Electrode...
techniques. 2. Briefly explain each of the following. (1) Why are all of the solutions used in this experiment 1.0 x 10-M in HNO3? (2) What are the hazards of using solutions that are 1.0 x 10 M in HNO3?
need help with questions 3,4,5
Laboratory Questions: Saturated Solutions The data below was collected in an experiment to determine the solublity of sodium nitrate at 20 C. Total Volume of Water (mL) Saturation Temp (C Solubility (g salt/100g water) 3.50 139.3 78.0 3.75 70.0 4.00 60.0 121.8 4.25 52.0 4.50 45.0 08. 3 4.75 5.00 36.0 Na NO3 73 1. If 4.8739 g of NaNO, was used, calculate the solubility in units of g NaNO,/100 g water at each saturation...
1. Describe the changes in your potato sample when placed in distilled water. Based on these changes, was the water hypertonic, isotonic, or hypotonic compared to the cells of the potato? Explain your reasoning in terms of the flow of water into or out of the potato cells. 2, Describe the changes in your potato sample when placed in 0.9% NaCl solution. Based on these changes, was the 0.9% NaCl hypertonic, isotonic, or hypotonic compared to the cells of the...
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