Homework Answers
Ans 2 :
The solubility of salts increase with increase in temperature. So on a general basis , increasing the temperature , increases the solubility of salt in the solution and vice versa.
This is because , heat causes the increase in kinetic energy of the salt particles due to which their intermolecular forces of attraction break and they are capable of getting dissolved into the solution.
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2. Briefly explain how the solubility of most salts is related to temperature. What general trend...
A student is evaluating the solubility potassium (KClO3) at various temperatures. She dissolves 2.50 g of...
A student is evaluating the solubility potassium (KClO3) at various temperatures. She dissolves 2.50 g of KCLO3 in a total volume of 7.5 mL of water. a. Calculate the concentration of KClO3 in this solution. b. The student heats the solution up to 80 degrees Celsius, the removes the test tube containing the salt solution from the hot water bath. At what temperature would you expect to see the formation of salt crystals in the solution? c. If the solution...
solubility curve of salts Solubility Curve of Salts ( Extra Credit: Maximum of 5 pts.) The...
solubility curve of salts
Solubility Curve of Salts ( Extra Credit: Maximum of 5 pts.) The solubility curve for solutes describes at what the temperature its solution will be saturated (maximum solubility). Beyond that amount, the salt will start to crystallize. The solubility of sodium chloride and potassium chloride in water at different temperatures is given in the table below: Naci КСІ Temp (C) Solubility (g/100g H2O) Temp (C) Solubility (g/100g H,O) 0 35.65 28 10 35.72 35.89 20 30...
Principles of Inorganic Chemistry! Week 5 Effect of Temperature on Solubility of a Salt In this experiment, you w...
Principles of Inorganic Chemistry! Week 5 Effect of Temperature on Solubility of a Salt In this experiment, you will study the effect of changing temperature on the amount of solute that will dissolve in a given amount of water. Water solubility is an important physical property in chemistry, and is often expressed as the mass of solute that dissolves in 100 g of water at a certain temperature. In this experiment, you will completely dissolve different quantities of potassium nitrate,...
Explain what is the purpose of the following reagents/procedural steps in the synthesis of acetaminophen by...
Explain what is the purpose of the following reagents/procedural steps in the synthesis of acetaminophen by reacting p-aminophenol with acetic anhydride: a. Phosphoric acid b. Placing the reaction flask in warm water c. Purpose for placing crude product of acetaminophen in a 100 ml beaker with 20 ml of water, then heat it on a hot plate until crystals dissolves then let cool. Then having it in an ice bath for 20 min once crystals appeared. d. Drying product at...
b. RELAB: Name: e at the beginning of lab. Write your answers in the space provided....
b. RELAB: Name: e at the beginning of lab. Write your answers in the space provided. Ise the solubility curve to help you answer the following questions: 1. Why does the x axis of the graph only go from 0°C to 100°C? 2. Which substance is most soluble at 10°C? NaNO3 Grams of solute per 100 g H,0 KNOG 3. Which two substances share the same solubility at 80°C? Naci, K103 4. Which substance's solubility changes the most drastically? KNO3...
Explain your answer in terms of LeChatelier's principle. c) The above solution is divided equaly into three test tu...
Explain your answer in terms of LeChatelier's principle. c) The above solution is divided equaly into three test tubes A, B. and Test tube "A is placed in an ice bath kept at 0 "C, test tube "B is kept at room temperature (25 °C) and test tube "C is placed in a boiling hot water bath maintained at 100 "C. The folowing are the colors of the solutions observed in each case. Solution "A" remained pink, solution "B" became...
1. Solubility in WATER Check solubility of four solutes in water (H2O). For each solute record...
1. Solubility in WATER Check solubility of four solutes in water (H2O). For each solute record how many teaspoons dissolved in 1/2 cup of water. NaCl: Start out with 4 small glasses (cups) and add 1/2 cup of water to each. Put 1/2 level teaspoon (tsp) of salt (NaCl) into the first cup and stir. If it dissolves within 1 minute; add another 1/2 tsp of salt and stir. Count the number of 1/2 tsps you are adding. Repeat until...
Question 1 (1 point) Using the solubility curve, at which temperature do KCl and KCIO, have...
Question 1 (1 point) Using the solubility curve, at which temperature do KCl and KCIO, have the same solubility? Solubility Curve Grams of solute/100g H30 to .- 30. 0 10 70 80 90 100 20 30 40 50 60 Temperature (°C) O 93°C 56°C O 85°C 0750 Previous Page Next Page Page 2 of 24 Question 2 (1 point) Saline (salt) solution is 0.9% by mass which is similar to tears, blood, and other body fluids. Which of the following...
b. Consider the solubility chart displayed below. Then determine whether each of the following mixtures should...
b. Consider the solubility chart displayed below. Then determine whether each of the following mixtures should be classified as unsaturated, saturated or supersaturated. NaNO3 CaCl2 KNO3 K2Cr2O7 Solubility (g of salt in 100 g H20) Pb(NO3)2 Naci KCIO3 0 10 Ce2(SO4)3 20 30 40 50 60 70 80 90 100 Temperature (°C) Mixture Classification A B 20 g of NaCl mixed with 100 g of water at 30°C 60 g of KCl mixed with 100 g of water at 50...
2. What is the molality of a concentrated solution of NH4Cl at 90°C (see diagram)? Solubility...
2. What is the molality of a concentrated solution of NH4Cl at 90°C (see diagram)? Solubility vs. Temperature for Solids KI NaNO, gases solids KNO, NH,Cl Solubility (grams of solute/100 g H20) KCI 3. If a 250. g solution with 21.4% KClO3 is concentrated, what must be the temperature of the solution (see diagram)? Nach AKCIO 0 SO 10 20 30 40 50 60 70 80 90 100 Temperature °C 4. Calculate the molarity of a solution of copper (11)...
solubility curve of salts
Solubility Curve of Salts ( Extra Credit: Maximum of 5 pts.) The solubility curve for solutes describes at what the temperature its solution will be saturated (maximum solubility). Beyond that amount, the salt will start to crystallize. The solubility of sodium chloride and potassium chloride in water at different temperatures is given in the table below: Naci КСІ Temp (C) Solubility (g/100g H2O) Temp (C) Solubility (g/100g H,O) 0 35.65 28 10 35.72 35.89 20 30...
Principles of Inorganic Chemistry! Week 5 Effect of Temperature on Solubility of a Salt In this experiment, you will study the effect of changing temperature on the amount of solute that will dissolve in a given amount of water. Water solubility is an important physical property in chemistry, and is often expressed as the mass of solute that dissolves in 100 g of water at a certain temperature. In this experiment, you will completely dissolve different quantities of potassium nitrate,...
b. RELAB: Name: e at the beginning of lab. Write your answers in the space provided. Ise the solubility curve to help you answer the following questions: 1. Why does the x axis of the graph only go from 0°C to 100°C? 2. Which substance is most soluble at 10°C? NaNO3 Grams of solute per 100 g H,0 KNOG 3. Which two substances share the same solubility at 80°C? Naci, K103 4. Which substance's solubility changes the most drastically? KNO3...
Explain your answer in terms of LeChatelier's principle. c) The above solution is divided equaly into three test tubes A, B. and Test tube "A is placed in an ice bath kept at 0 "C, test tube "B is kept at room temperature (25 °C) and test tube "C is placed in a boiling hot water bath maintained at 100 "C. The folowing are the colors of the solutions observed in each case. Solution "A" remained pink, solution "B" became...
Question 1 (1 point) Using the solubility curve, at which temperature do KCl and KCIO, have the same solubility? Solubility Curve Grams of solute/100g H30 to .- 30. 0 10 70 80 90 100 20 30 40 50 60 Temperature (°C) O 93°C 56°C O 85°C 0750 Previous Page Next Page Page 2 of 24 Question 2 (1 point) Saline (salt) solution is 0.9% by mass which is similar to tears, blood, and other body fluids. Which of the following...
b. Consider the solubility chart displayed below. Then determine whether each of the following mixtures should be classified as unsaturated, saturated or supersaturated. NaNO3 CaCl2 KNO3 K2Cr2O7 Solubility (g of salt in 100 g H20) Pb(NO3)2 Naci KCIO3 0 10 Ce2(SO4)3 20 30 40 50 60 70 80 90 100 Temperature (°C) Mixture Classification A B 20 g of NaCl mixed with 100 g of water at 30°C 60 g of KCl mixed with 100 g of water at 50...
2. What is the molality of a concentrated solution of NH4Cl at 90°C (see diagram)? Solubility vs. Temperature for Solids KI NaNO, gases solids KNO, NH,Cl Solubility (grams of solute/100 g H20) KCI 3. If a 250. g solution with 21.4% KClO3 is concentrated, what must be the temperature of the solution (see diagram)? Nach AKCIO 0 SO 10 20 30 40 50 60 70 80 90 100 Temperature °C 4. Calculate the molarity of a solution of copper (11)...
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