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Question 6 (5 points) For the first precipitation step of the experiment, you added HCl to...
#5 Write the solubility product expression for PbCl2. Using the concentration for the Pb+2 and Cl-...
#5 Write the solubility product expression for PbCl2.
Using the concentration for the Pb+2 and Cl- ions, solve for your
experimental Ksp.
#6 Using your book, find the theoretical Ksp for PbCl2
to determine your percent error
A Solubility Product Constant Introduction: Many substances are very soluble in water. However, in this experiment you will be concerned with substances that are insoluble or only slightly soluble. Dynamic equilibrium is established when an excess of a slightly soluble substance is placed...
I am needing help finding the answers the first. I am just having a bad brain...
I
am needing help finding the answers the first. I am just having a
bad brain fart and cant figure it out to save my life.
please show how you calculated it and found what you
did.
Thanks!!
Data and Calculations Step 3 Initial concentrations [Pb2+ ] initial = Moles of Pb2+ ion = Moles of Clion = Step 4 Is there any precipitate? Record the total volume of HCI added until Total volume of HCI added: LOML the precipitate...
Question 5 (10 points) If a student determined that 0.02351 moles of HCl was initial added...
Question 5 (10 points) If a student determined that 0.02351 moles of HCl was initial added to the beaker and 0.008952 moles of NaOH was calculated for the back titration. How many moles of HCl were neutralized by the antacid tablet (Note: the molar ratio of the reaction is 1:1 ; so there are 1 mole of HCI-to-1 mole of NaOH)? 0.014558 0.0014560 -0.014558 -0.01456 0.01456 RA
1-6 please ! Lecture 19 At-home practice Which factor had the effect of decreasing the solubility...
1-6 please !
Lecture 19 At-home practice Which factor had the effect of decreasing the solubility (compared to all the other factors which increase solubility)? 1. A sample of PbSO4 solid has reached equilibrium in a beaker of water. If the ionic strength of the solution is then increased by adding LINO3 salt, what happens to the activity coefficients of the Pb2 and SO,2 ions? What happens to the solubility of the PbSO4? 2. Which of these four salts will...
Group I Cations A INTRODUCTION Most metal halides are soluble in water and dilute hydrochloric acid....
Group I Cations A INTRODUCTION Most metal halides are soluble in water and dilute hydrochloric acid. The exceptions are silver ion, Ag mercurous ion, Hg,: and lead(II) ion, Pb. Consequently, the addition of HCI to a solution of metal cations leads to the selective precipitation of these three ions. While the theory behind the separation and identification of these ions has been outlined in the general discus- sion of the qualitative analysis scheme, some aspects of this chemistry need to...
QUESTION 1 Which of the following solutions is a buffer? A mixture of HF and HBr A...
QUESTION 1 Which of the following solutions is a buffer? A mixture of HF and HBr A mixture of H2SO4 and Na2SO4 A mixture of NaI and HI A mixture of NaF and HF 1 points QUESTION 2 What is the [A-]/[HA] ratio in a buffer made of HA and its conjugate base, A-, and has a pH of 8.00 ? The pKa of HA is 6.00 1:1 1:10 1:100 10:1 100:1 1 points QUESTION 3 If the molar...
I need help with the prelab and the flowchart. I’m totally clueless on the flowchart. For...
I need help with the prelab and the flowchart. I’m totally
clueless on the flowchart.
For the prelab questions I have some answers but I don’t know
if they’re right. If they’re wrong, I would greatly appreciate an
explanation for the correct answer. I’m really trying to learn the
material but it’s hard now that classes are cancelled so I’m sorry
if these are dumb
1. PbCl ?
2. Ag+
3. ?
4. S1
Group 1, the Chloride Group BACKGROUND...
I need help figuring out the flowchart and if I have the right answers for the...
I need help figuring out the flowchart and if I have the right
answers for the prelab please and thank you!
Group I, the Chloride Group BACKGROUND The precipitating reagent for the chloride group is chloride ion in an acidic solution. Only three of the 18 metal ions form a precipitate with this reagent: silver ion (Ag'), mercury(I)ion (Hg). and lead ion (Pb). Since lead chloride is somewhat soluble, it is not completely precipitated here, and a low concentration of...
How do you calculate questions 1 - 8 for the data analysis section? A. Precipitation of CaC,O, H,O from the Salt...
How do you calculate questions 1 - 8 for the data analysis
section?
A. Precipitation of CaC,O, H,O from the Salt Mixture Unknown number Trial 1 Trial 2 1. Mass of beaker (g) 59.45 59.45 5.oS Mass of beaker and salt mixture (g) 2. 3. Mass of salt mixture (g) I, oo oS 4. Mass of filter paper (g 5. Mass of filter paper and product after air-dried or oven-dried (g) 0, 35 6. Mass of dried product (g) 7....
just answer the first question but question is needed to solve In a follow-up experiment, 19.494-mL of an aqueous...
just answer the first question but question is needed to
solve
In a follow-up experiment, 19.494-mL of an aqueous solution of potassium hydroxide was prepared so that it contained exactly the same concentration of hydroxide ion from Question 10 This solution was mixed into a reaction vessel that contained an aqueous solution of a Group IIA-chloride chemical compound. At the end of the reaction, it was discovered that your solution was perfectly neutral.(Assume the hydroxide containing product precipitated out completely...
#5 Write the solubility product expression for PbCl2.
Using the concentration for the Pb+2 and Cl- ions, solve for your
experimental Ksp.
#6 Using your book, find the theoretical Ksp for PbCl2
to determine your percent error
A Solubility Product Constant Introduction: Many substances are very soluble in water. However, in this experiment you will be concerned with substances that are insoluble or only slightly soluble. Dynamic equilibrium is established when an excess of a slightly soluble substance is placed...
I
am needing help finding the answers the first. I am just having a
bad brain fart and cant figure it out to save my life.
please show how you calculated it and found what you
did.
Thanks!!
Data and Calculations Step 3 Initial concentrations [Pb2+ ] initial = Moles of Pb2+ ion = Moles of Clion = Step 4 Is there any precipitate? Record the total volume of HCI added until Total volume of HCI added: LOML the precipitate...
Question 5 (10 points) If a student determined that 0.02351 moles of HCl was initial added to the beaker and 0.008952 moles of NaOH was calculated for the back titration. How many moles of HCl were neutralized by the antacid tablet (Note: the molar ratio of the reaction is 1:1 ; so there are 1 mole of HCI-to-1 mole of NaOH)? 0.014558 0.0014560 -0.014558 -0.01456 0.01456 RA
1-6 please !
Lecture 19 At-home practice Which factor had the effect of decreasing the solubility (compared to all the other factors which increase solubility)? 1. A sample of PbSO4 solid has reached equilibrium in a beaker of water. If the ionic strength of the solution is then increased by adding LINO3 salt, what happens to the activity coefficients of the Pb2 and SO,2 ions? What happens to the solubility of the PbSO4? 2. Which of these four salts will...
Group I Cations A INTRODUCTION Most metal halides are soluble in water and dilute hydrochloric acid. The exceptions are silver ion, Ag mercurous ion, Hg,: and lead(II) ion, Pb. Consequently, the addition of HCI to a solution of metal cations leads to the selective precipitation of these three ions. While the theory behind the separation and identification of these ions has been outlined in the general discus- sion of the qualitative analysis scheme, some aspects of this chemistry need to...
I need help with the prelab and the flowchart. I’m totally
clueless on the flowchart.
For the prelab questions I have some answers but I don’t know
if they’re right. If they’re wrong, I would greatly appreciate an
explanation for the correct answer. I’m really trying to learn the
material but it’s hard now that classes are cancelled so I’m sorry
if these are dumb
1. PbCl ?
2. Ag+
3. ?
4. S1
Group 1, the Chloride Group BACKGROUND...
I need help figuring out the flowchart and if I have the right
answers for the prelab please and thank you!
Group I, the Chloride Group BACKGROUND The precipitating reagent for the chloride group is chloride ion in an acidic solution. Only three of the 18 metal ions form a precipitate with this reagent: silver ion (Ag'), mercury(I)ion (Hg). and lead ion (Pb). Since lead chloride is somewhat soluble, it is not completely precipitated here, and a low concentration of...
How do you calculate questions 1 - 8 for the data analysis
section?
A. Precipitation of CaC,O, H,O from the Salt Mixture Unknown number Trial 1 Trial 2 1. Mass of beaker (g) 59.45 59.45 5.oS Mass of beaker and salt mixture (g) 2. 3. Mass of salt mixture (g) I, oo oS 4. Mass of filter paper (g 5. Mass of filter paper and product after air-dried or oven-dried (g) 0, 35 6. Mass of dried product (g) 7....
just answer the first question but question is needed to
solve
In a follow-up experiment, 19.494-mL of an aqueous solution of potassium hydroxide was prepared so that it contained exactly the same concentration of hydroxide ion from Question 10 This solution was mixed into a reaction vessel that contained an aqueous solution of a Group IIA-chloride chemical compound. At the end of the reaction, it was discovered that your solution was perfectly neutral.(Assume the hydroxide containing product precipitated out completely...
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