Homework Answers
1) The curves KCl and KClO3 interception point at 930C, where both have the same solubility.
2) 0.91% mass volume, so to prepare a saline solution, we dissolve 0.9gms of salt in 99.1mL of water.
3) Student A claim is correct (option d). because the left is stirred, the ionic compound breaks the solute in to charged particles.
4) Option C is correct, here is the calculation
Molarity or Molar concentration = moles os solute/ L of solution.
Number of moles= 3, 250mL of sloution equals 0.25L
molarity= 3/0.25 = 12M of NaCl.
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Question 1 (1 point) Using the solubility curve, at which temperature do KCl and KCIO, have...
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...
Answer the following questions from the given solubility curve. 150 KI 140 130 120 110 NaNO3...
Answer the following questions from the given solubility curve. 150 KI 140 130 120 110 NaNO3 100 90 KNO3 Grams of solute per 100 g H,0 80 70 60 NH3) NHACI 50 KCI Naci 40 30 20 KCIÓ: 10 -Ce2(SO4)3 0 0 10 20 30 40 50 60 70 80 90 100 Temperature (°C) (a) Define solution. Explain with the substance having a trigonal shape from the above solubility curve. (2 marks) (b) Which factor of the solubility, decrease the...
Table 1 Factors Affecting Solubility le 1. Identity general trends. Exceptions do sometimes occur, we will leam a...
Table 1 Factors Affecting Solubility le 1. Identity general trends. Exceptions do sometimes occur, we will leam about exceptions and the reasons behind them later. Condition Nonbonding Interaction (if applicable) Dipol-dipole polar solute/polar solvent Effect on Solubility The solute dissolves. nonpolar solute/nonpolar solvent polar soluto/nonpolar solvent nonpolar solute/polar solvent increasing the pressure of a gas over a liquid solvent increasing the temperature of a dissolving solid increasing the temperature of a dissolving gas Table 2 Measures of Solution Concentration Quantity...
Answer the question based on the solubility curve given below. Which substance(s) will not completely dissolve...
Answer the question based on the solubility curve given below. Which substance(s) will not completely dissolve when 60 g are added to 240 g of water at 55°C? (select all that apply) 100 80 60 Solubility is in 100g water) 20 0 10 20 40 30 50 60 70 80 Temperature (°C) Brightyellowjeans/CC BYSA (https://creativecommons.org/licenses/by-sa/4.0) D OC A B.
E3. Answer the following questions from the given solubility curve. Table G Solubility Curves KI NANO,...
E3. Answer the following questions from the given solubility curve. Table G Solubility Curves KI NANO, 140 130 -KNO, 120 110 100 90 80 Solute per 100 g of H, (g) NHẠCI 70 HCI 60 KCI 50 40 30 Naci -KCIO, NH 20 10 SO2 0 0 10 20 30 40 50 60 70 80 90 100 Temperature (°C) (a) How much of the potassium chloride will dissolve and how much remain undissolved at the bottom of the beaker, when...
answer A,b,c and d (((please clarify handwriting ?))) E4. Answer the following questions from the given...
answer A,b,c and d
(((please clarify handwriting ?)))
E4. Answer the following questions from the given solubility curve. 100 90 80 NaNO 70 KC20 60 Cach KNO Solubility (g of salt in 100 g H,0) 50 Pb(NO3)2 KCI 40 Naci 30 20 КСО. 10 0 0 Ce (SO) 10 20 30 40 50 60 70 80 90 100 Temperature (°C) (a) How much water is needed to dissolve 46.6 g of KCIO3 at 70°C? (1 mark) (b) Explain the different...
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...
Question 7 of 100 99. Which solution will provide the lowest freezing point? A) 1.2 M...
Question 7 of 100 99. Which solution will provide the lowest freezing point? A) 1.2 M Naci B) 1.0 M KCI C) 1.0 M Na.Co. D) 2.0 MKI 78. is the spread of particles through random motion. A) diffusion B) effusion C) either diffusion or effusion lis correct. D) Gas pressure Question 9 of 100 25. An atom that loses an electron is A) known as a cation B) known as an anion C) still called an atom D) known...
Question 30 (1 point) Which of the following aqueous solutions will have the lowest freezing point?...
Question 30 (1 point) Which of the following aqueous solutions will have the lowest freezing point? a) 0.40 m C2H5OH b) 0.20 m C6H1206 c) 0.10 m CaCl2 d) 0.20 m Naci e) 0.20 m Na2SO4 Question 31 (1 point) The nonvolatile, nonelectrolyte testosterone, C9H2802 (288.4 g/mol), is soluble in ethanol, in 19
Saturated, Unsaturated & Supersaturated Solutions Solution, in which the concentration of solute is that determined by...
Saturated, Unsaturated & Supersaturated Solutions Solution, in which the concentration of solute is that determined by its solubility (at given temperature) is called SATURATED solution. One cannot add more solute to such a solution. We also say that a saturated solution is in equilibrium with pure solute: If we add solid Nacl to an already saturated solution of NaCl, that solid remains in equilibrium with dissolved Naci. Solution containing less solute than would be in the saturated solution, is UNSATURATED...
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...
Answer the following questions from the given solubility curve. 150 KI 140 130 120 110 NaNO3 100 90 KNO3 Grams of solute per 100 g H,0 80 70 60 NH3) NHACI 50 KCI Naci 40 30 20 KCIÓ: 10 -Ce2(SO4)3 0 0 10 20 30 40 50 60 70 80 90 100 Temperature (°C) (a) Define solution. Explain with the substance having a trigonal shape from the above solubility curve. (2 marks) (b) Which factor of the solubility, decrease the...
Table 1 Factors Affecting Solubility le 1. Identity general trends. Exceptions do sometimes occur, we will leam about exceptions and the reasons behind them later. Condition Nonbonding Interaction (if applicable) Dipol-dipole polar solute/polar solvent Effect on Solubility The solute dissolves. nonpolar solute/nonpolar solvent polar soluto/nonpolar solvent nonpolar solute/polar solvent increasing the pressure of a gas over a liquid solvent increasing the temperature of a dissolving solid increasing the temperature of a dissolving gas Table 2 Measures of Solution Concentration Quantity...
Answer the question based on the solubility curve given below. Which substance(s) will not completely dissolve when 60 g are added to 240 g of water at 55°C? (select all that apply) 100 80 60 Solubility is in 100g water) 20 0 10 20 40 30 50 60 70 80 Temperature (°C) Brightyellowjeans/CC BYSA (https://creativecommons.org/licenses/by-sa/4.0) D OC A B.
E3. Answer the following questions from the given solubility curve. Table G Solubility Curves KI NANO, 140 130 -KNO, 120 110 100 90 80 Solute per 100 g of H, (g) NHẠCI 70 HCI 60 KCI 50 40 30 Naci -KCIO, NH 20 10 SO2 0 0 10 20 30 40 50 60 70 80 90 100 Temperature (°C) (a) How much of the potassium chloride will dissolve and how much remain undissolved at the bottom of the beaker, when...
answer A,b,c and d
(((please clarify handwriting ?)))
E4. Answer the following questions from the given solubility curve. 100 90 80 NaNO 70 KC20 60 Cach KNO Solubility (g of salt in 100 g H,0) 50 Pb(NO3)2 KCI 40 Naci 30 20 КСО. 10 0 0 Ce (SO) 10 20 30 40 50 60 70 80 90 100 Temperature (°C) (a) How much water is needed to dissolve 46.6 g of KCIO3 at 70°C? (1 mark) (b) Explain the different...
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...
Question 7 of 100 99. Which solution will provide the lowest freezing point? A) 1.2 M Naci B) 1.0 M KCI C) 1.0 M Na.Co. D) 2.0 MKI 78. is the spread of particles through random motion. A) diffusion B) effusion C) either diffusion or effusion lis correct. D) Gas pressure Question 9 of 100 25. An atom that loses an electron is A) known as a cation B) known as an anion C) still called an atom D) known...
Question 30 (1 point) Which of the following aqueous solutions will have the lowest freezing point? a) 0.40 m C2H5OH b) 0.20 m C6H1206 c) 0.10 m CaCl2 d) 0.20 m Naci e) 0.20 m Na2SO4 Question 31 (1 point) The nonvolatile, nonelectrolyte testosterone, C9H2802 (288.4 g/mol), is soluble in ethanol, in 19
Saturated, Unsaturated & Supersaturated Solutions Solution, in which the concentration of solute is that determined by its solubility (at given temperature) is called SATURATED solution. One cannot add more solute to such a solution. We also say that a saturated solution is in equilibrium with pure solute: If we add solid Nacl to an already saturated solution of NaCl, that solid remains in equilibrium with dissolved Naci. Solution containing less solute than would be in the saturated solution, is UNSATURATED...
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