Chemistry word question... In the thermodynamics lab, you determined the temperature at which your saturated Potassium...
Chemistry word question...
In the thermodynamics lab, you determined the temperature at which your saturated Potassium Nitrate solution precipitated out of solution. If during this lab some of your Potassium Nitrate crystalized on your temperature probe and was no longer in solution, what effect would this have on your observed deltaG for the process?
Homework Answers
The magnitude of 
G depends on the number of moles of salt and consequently the mass
of KCl that precipitates. Since some of the KCL has been removed
from the solution, not all of it precipites and the magnitude of
G recorded is lesser than actual value
Add Answer to:
Chemistry word question...
In the thermodynamics lab, you determined the temperature at
which your saturated Potassium...
How would I go about finishing questions 3-6 for this lab report on thermodynamics? The reaction...
How would I go about finishing questions 3-6 for this lab
report on thermodynamics?
The reaction was the dissolving of KNO3 in water
CRC Handbook. ThermouyilaL Parameter AH" Value from your data. 32.8KT Ima 9.83K AS AG at 25°C 3. Show how you calculated the value for AH from CRC Handbook data. 4. Discuss the meanings of the signs of your values for AH', and AS'. What do they tell you about the process in which potassium nitrate dissolves in...
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,...
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...
Each week before you have chemistry lab, someone needs to prepare all the solutions you will...
Each week before you have chemistry lab, someone needs to prepare all the solutions you will use in your experiment. Suppose your experiment for next week calls for 0.500 M NaOH solution, 3.00 M NH4Cl solution, and 0.100 M Na3PO4 solution. Calculate the mass in grams for each solute that would be needed to prepare 8.00 L of each of the solutions. Calculate the mass, in grams, of solute present in each of the following solutions: a. 225 g of...
Pre-lab Questions Why would using these procedures not work for potassium nitrate, and what would you...
Pre-lab Questions Why would using these procedures not work for potassium nitrate, and what would you have to do differently to test for nitrates? 1. 2. What would happen to your samples if you used tap water to make the dilutions required in this lab? From question 2, if you accounted for an anion in the tap water could you be certain that you accounted for all of the anions in solution without testing the water? Explain your answer 3.
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...
General Chemistry II b) Would you expect AE to be the same as AH for this...
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POST LAB QUESTIONS. 1. If you used more water in your calorimeter, would the observed temperature...
POST LAB QUESTIONS. 1. If you used more water in your calorimeter, would the observed temperature change upon the addition of the hot solid object be larger or smaller than the temperature change you observed? Explain. 2. Your instructor handed you a 1-L sample of a liquid and asked you to determine its specific heat. How would you determine the specific heat of the liquid using the equipment in this lab? 3. What effect would not covering the calorimeter cup...
2. The following question is mostly a review of General Chemistry. You may need to consult...
2. The following question is mostly a review of General Chemistry. You may need to consult your old chemistry texts or notes from other classes to refresh your memory on some of these things. If you aren't having much success with questions 1-3, at least do question 4, which doesn't really depend on your answer to 1-3. Consider the following balanced equation for the hydrolysis of hydrated metal ions of a. Write the equilibrium constant expression for this dissociation. (The...
Fill in the data sheet and please show your work for the calculations Thermodynamics of Potassium...
Fill in the data sheet and please show your work for the
calculations
Thermodynamics of Potassium nitrate dissolving in water
KNO3(s) ↔
K+ (aq) +
NO3-(aq
Determine the thermodynamic variables, ΔG, ΔH, and ΔS, for the
dissolving of KNO3 in water. You will find these
variables by creating a Van’T Plot, which is a graph of
lnK(sp) vs 1/T.
A set amount of KNO3 is weighed and dissolved in 25mL
of water and heated until all the KNO3 is
dissolved....
How would I go about finishing questions 3-6 for this lab
report on thermodynamics?
The reaction was the dissolving of KNO3 in water
CRC Handbook. ThermouyilaL Parameter AH" Value from your data. 32.8KT Ima 9.83K AS AG at 25°C 3. Show how you calculated the value for AH from CRC Handbook data. 4. Discuss the meanings of the signs of your values for AH', and AS'. What do they tell you about the process in which potassium nitrate dissolves in...
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,...
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...
Each week before you have chemistry lab, someone needs to prepare all the solutions you will use in your experiment. Suppose your experiment for next week calls for 0.500 M NaOH solution, 3.00 M NH4Cl solution, and 0.100 M Na3PO4 solution. Calculate the mass in grams for each solute that would be needed to prepare 8.00 L of each of the solutions. Calculate the mass, in grams, of solute present in each of the following solutions: a. 225 g of...
Pre-lab Questions Why would using these procedures not work for potassium nitrate, and what would you have to do differently to test for nitrates? 1. 2. What would happen to your samples if you used tap water to make the dilutions required in this lab? From question 2, if you accounted for an anion in the tap water could you be certain that you accounted for all of the anions in solution without testing the water? Explain your answer 3.
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...
General Chemistry II b) Would you expect AE to be the same as AH for this reaction? Explain. (.5 pt) 3. Calculate AG for the reaction C(diamond) + O2(g) → CO2(g) Given the result of your calculation, postulate a reason for why we dont protect diamonds from atmospheric oxygen? (1.5 pt) 4. Consider the dimerization reaction 2 NO2) = N20.g) at 298 K. If the starting pressure of NO2(g) 0.011 atm and that of N:0.9) was 0.065 atm, would this...
POST LAB QUESTIONS. 1. If you used more water in your calorimeter, would the observed temperature change upon the addition of the hot solid object be larger or smaller than the temperature change you observed? Explain. 2. Your instructor handed you a 1-L sample of a liquid and asked you to determine its specific heat. How would you determine the specific heat of the liquid using the equipment in this lab? 3. What effect would not covering the calorimeter cup...
2. The following question is mostly a review of General Chemistry. You may need to consult your old chemistry texts or notes from other classes to refresh your memory on some of these things. If you aren't having much success with questions 1-3, at least do question 4, which doesn't really depend on your answer to 1-3. Consider the following balanced equation for the hydrolysis of hydrated metal ions of a. Write the equilibrium constant expression for this dissociation. (The...
Fill in the data sheet and please show your work for the
calculations
Thermodynamics of Potassium nitrate dissolving in water
KNO3(s) ↔
K+ (aq) +
NO3-(aq
Determine the thermodynamic variables, ΔG, ΔH, and ΔS, for the
dissolving of KNO3 in water. You will find these
variables by creating a Van’T Plot, which is a graph of
lnK(sp) vs 1/T.
A set amount of KNO3 is weighed and dissolved in 25mL
of water and heated until all the KNO3 is
dissolved....
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