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(2pts) Post-lab Questions AH Choose. ΔΗ (1pts) 1. Do you expect the solubility of Borax to...
Enthalpy and Entropy Changes of Dissolving Borax Plot your values of ln(Ksp) vs. 1/T and find...
Enthalpy and Entropy Changes of Dissolving Borax
Plot your values of ln(Ksp) vs. 1/T
and find the slope and y-intercept of the best fit line.
Use the equation for the best fit line and the following
equation
ln(K)=−ΔH∘RT+ΔS∘Rln(K)=−ΔH∘RT+ΔS∘R to calculate ΔH° and
ΔS° for dissolving Borax
Please help me solve the incorrect ones, thank you!
Table 2. Calculations ~60°C trial ~50°C trial ~40°C trial ~30°C trial ~20°C trial Vol. of HCl used (mL) 15.00 13.00 6.000 10.00 2.00 Moles of...
please answer 1-6 and 8 DISCUSSION 1. Does the solubility of borax increase or decrease when...
please answer 1-6 and 8
DISCUSSION 1. Does the solubility of borax increase or decrease when the temperature is raised? Explain. 2. Is the forward reaction endothermic or exothermic? Justify your answer 3. Describe the mathematical changes in K, with increase in temperature and relate these numerical changes to the solubility of borax. Explain your anster 4. Calculate the sign and value of AS according to Eq. 12.7. Based on the bal- anced chemical equation for this reaction (Eq. 12.1),...
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...
verify 1-2-3-4-5-6 and do 7 please 1. It is hard to get the bars to be...
verify 1-2-3-4-5-6 and do 7 please
1. It is hard to get the bars to be parallel in this experiment. Explain why the bars tend to be so wiggly That happens because there is not match friction between the glass plates and it makes it hard to move them gradually relatively to each other, plus the surfaces of the glass plates are not entirely even which makes the friction vary in different areas of the glass plates and their movement...
How do you get the 1.18 when doing the quadratic equation? Therefore, we have pH =...
How do you get the 1.18 when doing the quadratic
equation?
Therefore, we have pH = 4.74 + log(1.00 times 10^-4)/(1.00 times 10^-3) pH = 4.74 - 1.00 = 3.74 Therefore Now we will redo the calculation, without making any assumptions at all. We will solve for x, which represents the H^+ concentration at equilibrium, in order to calculate pH. [CH_3COO^-][H^+]/[CH_3COOH] = K_a (1.00 times 10^-4 + X)(X)/(1.00 times 10^-3 - X) = 1.8 times 10^-5 1.00 times 10^-4 X...
please help with my pre lab additional information Pre-Lab Questions: 1. What is the definition of...
please help with my pre lab
additional information
Pre-Lab Questions: 1. What is the definition of an 'equivalence point' in an acid/base titration? (1 point) 2. In part one of the experiment, you will prepare the acid solutions being titrated from a stock solution. Describe how you will accurately prepare 10.00 mL of 0.100 M HCl solution using a 1.00 M HCI stock solution. In your response to this question, be very specific about the quantities of stock solution and...
Can you help me with a discussion response to a classmate? Thanks. Questions: Compare and contrast...
Can you help me with a discussion response to a classmate? Thanks. Questions: Compare and contrast Alzheimer's and normal age-related memory changes. Due to the increasing older adult population, AD rates will increase. However, the etiology of it is not well understood and there are no effective treatments. What would you suggest for decreasing the risk to AD, slowing the rate of AD or living with AD? How are the families of AD patients affected and what would you suggest...
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1)...
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) The LM curve represents A) the single level of output where the goods market is in equilibrium. B) the combinations of output and the interest rate where the goods market is in equilibrium. C) the single level of output where financial markets are in equilibrium. D) the combinations of output and the interest rate where the money market is in equilibrium. E) none of...
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) The...
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) The LM curve represents A) the single level of output where the goods market is in equilibrium. B) the combinations of output and the interest rate where the goods market is in equilibrium. C) the single level of output where financial markets are in equilibrium. D) the combinations of output and the interest rate where the money market is in equilibrium. E) none of the...
please answer all pre-lab questions 1 through 5. THANK YOU!!! this is the manual to give...
please answer all pre-lab questions 1 through 5. THANK YOU!!!
this is the manual to give you some background.
the pre-lab questions..
the pre-lab sheet.
Lab Manual Lab 10: String Waves & Resonance Before the lab, read the theory in Sections 1-3 and answer questions on Pre-lab Submit your Pre-lab at the beginning of the lab. During the lab, read Section 4 and follow the procedure to do the experiment. You will record data sets, perform analyses, answer questions, and...
Enthalpy and Entropy Changes of Dissolving Borax
Plot your values of ln(Ksp) vs. 1/T
and find the slope and y-intercept of the best fit line.
Use the equation for the best fit line and the following
equation
ln(K)=−ΔH∘RT+ΔS∘Rln(K)=−ΔH∘RT+ΔS∘R to calculate ΔH° and
ΔS° for dissolving Borax
Please help me solve the incorrect ones, thank you!
Table 2. Calculations ~60°C trial ~50°C trial ~40°C trial ~30°C trial ~20°C trial Vol. of HCl used (mL) 15.00 13.00 6.000 10.00 2.00 Moles of...
please answer 1-6 and 8
DISCUSSION 1. Does the solubility of borax increase or decrease when the temperature is raised? Explain. 2. Is the forward reaction endothermic or exothermic? Justify your answer 3. Describe the mathematical changes in K, with increase in temperature and relate these numerical changes to the solubility of borax. Explain your anster 4. Calculate the sign and value of AS according to Eq. 12.7. Based on the bal- anced chemical equation for this reaction (Eq. 12.1),...
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...
verify 1-2-3-4-5-6 and do 7 please
1. It is hard to get the bars to be parallel in this experiment. Explain why the bars tend to be so wiggly That happens because there is not match friction between the glass plates and it makes it hard to move them gradually relatively to each other, plus the surfaces of the glass plates are not entirely even which makes the friction vary in different areas of the glass plates and their movement...
How do you get the 1.18 when doing the quadratic
equation?
Therefore, we have pH = 4.74 + log(1.00 times 10^-4)/(1.00 times 10^-3) pH = 4.74 - 1.00 = 3.74 Therefore Now we will redo the calculation, without making any assumptions at all. We will solve for x, which represents the H^+ concentration at equilibrium, in order to calculate pH. [CH_3COO^-][H^+]/[CH_3COOH] = K_a (1.00 times 10^-4 + X)(X)/(1.00 times 10^-3 - X) = 1.8 times 10^-5 1.00 times 10^-4 X...
please help with my pre lab
additional information
Pre-Lab Questions: 1. What is the definition of an 'equivalence point' in an acid/base titration? (1 point) 2. In part one of the experiment, you will prepare the acid solutions being titrated from a stock solution. Describe how you will accurately prepare 10.00 mL of 0.100 M HCl solution using a 1.00 M HCI stock solution. In your response to this question, be very specific about the quantities of stock solution and...
please answer all pre-lab questions 1 through 5. THANK YOU!!!
this is the manual to give you some background.
the pre-lab questions..
the pre-lab sheet.
Lab Manual Lab 10: String Waves & Resonance Before the lab, read the theory in Sections 1-3 and answer questions on Pre-lab Submit your Pre-lab at the beginning of the lab. During the lab, read Section 4 and follow the procedure to do the experiment. You will record data sets, perform analyses, answer questions, and...
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