Homework Answers
In general 35g of KNO3 can easily dissolve in 100ml water at 20 degree Celsius basing on the solubility curve. So, from the given date it is purely endothermic reaction
The final temperature will be decrease (endothermic)
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If 30 g of KNO, is dissolved in 100 mL water at 25°C, what will the...
1. Only 0.16 g of Ca(OH), dissolved in 100. mL of water at 25°C. What is...
1. Only 0.16 g of Ca(OH), dissolved in 100. mL of water at 25°C. What is the Kip for calcium hydroxide at this temperature?
The solubility of compound A ịn water at 25°C is 3.00 g/100 mL. In benzene at the same temperature
The solubility of compound A ịn water at 25°C is 3.00 g/100 mL. In benzene at the same temperature, the solubility of compound A is 4.00 g/50mL. If 3 g of compound were dissolved in 100 mL of water, how much compound would be extracted by three 10-mL portions of benzene?
If 3 g of compound were dissolved in 100 mL of water, how much compound would be extracted by three 10-mL portions of benzene?
The solubility of compound A n water at 25°C įs 3.00 g/100 mL. In benzene at the same temperature, the solubility of compound A is 4.00 g/50mL. If 3 g of compound were dissolved in 100 mL of water, how much compound would be extracted by three 10-mL portions of benzene?
want to check 4 5 and 6 (4) KNO; (s) can be dissolved in water. The...
want to check 4 5 and 6
(4) KNO; (s) can be dissolved in water. The dissolution causes the solution temperature decrease. What true about KNO3 (s)? (a) The dissolution is exothermic, and KNO3 (s) can be used as hot pack. (b) The dissolution is endothermic, and KNO3 (s) can be used as hot pack. (c) The dissolution is endothermic, and KNO3 (s) can be used as cold pack. (d) The dissolution is exothermic, and KNO3 (s) can be used...
What is the final temperature of the solution when 4.806 g of sodium hydroxide is dissolved in 100.0 mL of water at an i...
What is the final temperature of the solution when 4.806 g of sodium hydroxide is dissolved in 100.0 mL of water at an initial temperature of 24.5 C?. The density of water is 0.9969 g/cm3, and the heat capacity is 4.184 J/C. The enthalpy of dissolution for sodium hydroxide is -44.2 kJ/mol.
The solubility of ZnCO3 in water is 0.0023 g/100 mL at 25°C. What is the Ksp...
The solubility of ZnCO3 in water is 0.0023 g/100 mL at 25°C. What is the Ksp for ZnCO3 at 25 °C?
can you please answer 5&6? Four grams (4 g) of NaNO, was dissolved in 10 mL...
can you please answer 5&6?
Four grams (4 g) of NaNO, was dissolved in 10 mL of water and heated to 100°C. Upon cooling, the salt began to recrystallize at approximately 40C. Based on these observations, determine whether sodium or potassium nitrate used in your experiment is the more soluble salt. Explain your answer. pts) We were unable to transcribe this image8. Using the average of your two trials, plot a graph of temperature of saturation of KNO, versus concentration....
15.48 g of nickel sulfate (MM 154.75 g/mol) was dissolved in 100.00 mL of water. The...
15.48 g of nickel sulfate (MM 154.75 g/mol) was dissolved in 100.00 mL of water. The initial temperature was 20.00 oC, and the final temperature was 25.06 oC, The specific heat capacity of the reaction mixture was 4.18J/g oC. What is the temperature change T? A.20.00 oC B.25.06 oC C.22.53 oC D. 278.06K E. 5.06 oC
1. 5.00 g of urea, (NH2)2CO is dissolved in 250.0 mL of water(density = 1.00 g/mL)...
1. 5.00 g of urea, (NH2)2CO is dissolved in 250.0 mL of water(density = 1.00 g/mL) at 30.0oC in a coffee cup calorimeter. When this is done, 27.6 kJ of heat is absorbed. (5 points) a) Is the solution process exothermic or endothermic? c) What is qwater? d) What is the final temperature of the solution(specific heat constant of water is 4.18 J/g.OC)? Please show all the work!! thank you very much :)
The solubility of adipic acid in water is 1.40 g/ 100 mL at 10 C, and...
The solubility of adipic acid in water is 1.40 g/ 100 mL at 10 C, and 160 g/ 100 mL at 100 C. A. If 0.950 g of adipic acid is dissolved in 3.00 mL of boiling water and cooled to 10 C. Calculate the maximum mass of adipic acid that could crystallize from the solution. B. What is the maximum amount of adipic acid that could dissolve in 3.00 mL of boiling water?
1. Only 0.16 g of Ca(OH), dissolved in 100. mL of water at 25°C. What is the Kip for calcium hydroxide at this temperature?
want to check 4 5 and 6
(4) KNO; (s) can be dissolved in water. The dissolution causes the solution temperature decrease. What true about KNO3 (s)? (a) The dissolution is exothermic, and KNO3 (s) can be used as hot pack. (b) The dissolution is endothermic, and KNO3 (s) can be used as hot pack. (c) The dissolution is endothermic, and KNO3 (s) can be used as cold pack. (d) The dissolution is exothermic, and KNO3 (s) can be used...
can you please answer 5&6?
Four grams (4 g) of NaNO, was dissolved in 10 mL of water and heated to 100°C. Upon cooling, the salt began to recrystallize at approximately 40C. Based on these observations, determine whether sodium or potassium nitrate used in your experiment is the more soluble salt. Explain your answer. pts) We were unable to transcribe this image8. Using the average of your two trials, plot a graph of temperature of saturation of KNO, versus concentration....
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