5

EXPERIMENT 2 QUALITATIVE CATION ANALYSISPRE-LABORATORY QUESTIONSThe following preparatory questions should be answcred before coming lab: They are ilended mtroduce ...

Question

EXPERIMENT 2 QUALITATIVE CATION ANALYSISPRE-LABORATORY QUESTIONSThe following preparatory questions should be answcred before coming lab: They are ilended mtroduce You t0 scveral idcas that arc MpOrtant t0 aspeets 0 tlic experiment. must (urn in your work to your instructor before you will be allowed to begin the experiment.Complete the following solubility table. (Simply cnter $ for soluble or for insoluble In ech eell)NO"SO 'COy

EXPERIMENT 2 QUALITATIVE CATION ANALYSIS PRE-LABORATORY QUESTIONS The following preparatory questions should be answcred before coming lab: They are ilended mtroduce You t0 scveral idcas that arc MpOrtant t0 aspeets 0 tlic experiment. must (urn in your work to your instructor before you will be allowed to begin the experiment. Complete the following solubility table. (Simply cnter $ for soluble or for insoluble In ech eell) NO" SO ' COy



Answers

You choose to investigate some of the solubility guidelines for two ions not listed in Table $4.1,$ the chromate ion $\left(\mathrm{CrO}_{4}^{2-}\right)$ and the oxalate ion $\left(\mathrm{C}_{2} \mathrm{O}_{4}^{2-}\right) .$ You are given $0.01 \mathrm{M}$ solutions (A, B, C, D) of four water-soluble salts: $$ \begin{array}{lll} \hline \text { Solution } & \text { Solute } & \text { Color of Solution } \\ \hline \text { A } & \mathrm{Na}_{2} \mathrm{CrO}_{4} & \text { Yellow } \\ \mathrm{B} & \left(\mathrm{NH}_{4}\right)_{2} \mathrm{C}_{2} \mathrm{O}_{4} & \text { Colorless } \\ \mathrm{C} & \mathrm{AgNO}_{3} & \text { Colorless } \\ \mathrm{D} & \mathrm{CaCl}_{2} & \text { Colorless } \\ \hline \end{array} $$ When these solutions are mixed, the following observations are made: $$ \begin{array}{lll} \hline \text { Expt } & \text { Solutions } & \\ \text { Number } & \text { Mixed } & \text { Result } \\ \hline 1 & \mathrm{~A}+\mathrm{B} & \text { No precipitate, yellow solution } \\ 2 & \mathrm{~A}+\mathrm{C} & \text { Red precipitate forms } \\ 3 & \mathrm{~A}+\mathrm{D} & \text { Yellow precipitate forms } \\ 4 & \mathrm{~B}+\mathrm{C} & \text { White precipitate forms } \\ 5 & \mathrm{~B}+\mathrm{D} & \text { White precipitate forms } \\ 6 & \mathrm{C}+\mathrm{D} & \text { White precipitate forms } \end{array} $$ (a) Write a net ionic equation for the reaction that occurs in each of the experiments. (b) Identify the precipitate formed, if any, in each of the experiments.

So in this problem where what we have to do is first you have to find out the balanced equation for its operation Given. And from there we'LL have to find out The overall Arik equation, based on on the sole ability of the off the substances of the compound, is presenting its creation. And from there we'LL have to find out the Net on immigration for fusion. So here is our first creation, which is between the any to Cyril for an image for a city off for so the products will be any to sito foreign an edge for to sear off for and the information based on which were writing all of these air equals is based on their solidarity in akwa solution. So if we look at the Celebrities Church which is provided also in the book, we'LL see that all the sodium and and it's for comm bones are usually so level and water, and also from the result condition of destruction were given that no precipitate was formed in this creation. That means all the compounds present in the reaction mixture are in a quiz and there is no solid, which is formed as the precipitate industry ation that so did this's are balanced reaction equation and from American right down the overnight the Over an icky question, which will be not doing a plus class zero for two minors. Oh, Nicholas, plus toe in age for press Bless C two four to minors and all. They give us two. In a plus ackwards proceed toe over for two minors off your sack wass glass and for no to manage for, plus ankles and sear Oh, for two minus equals. So this is the overall anarchy question for this rations, and we know that if we have and it's solid farming this relation. In that case, we can just I got out the spectators from both side of the rationing cushion where decent there is no solid farm and there is not precipitated. That means it's over. And the question is the NATO immigration for registration also. So this is our nanny equation for this relation. Now we'LL go to our second one where and it was zero for is reacting with it's, you know, three toe form in an artery and eighty to Sarah for so in the result condition for this year said that there's a red ah solider there. It presented his farm. So we turn off these two compounds or precipitate. We can identify them by the solu ability. Off, at least once is we turn to know the servant of sear off for from the silvery chart. But we know that all the night craves our salute will in water and also the alkali metal composed of solid water. That means obviously this is soluble in water. And that's why the under compound, which is the eighty to sear Oh, for will be alarmed solid precipitated Ah, off for ministry action. So this is our passivity eighty two Sierra friend there So you have written it in the solid form. So now for writing the net on immigration in a creation which has asserted precipitate what we have to do is we can ignore the components of the irons which air in a course acquis condition in both side of the reaction equation. So from here, you can see that see, the sodium and night rid is an AC wa's in both side of the reaction. That means these are suspected rounds in this racially question on weaken just our meet them and we can write down the need. Any question just by writing, Um, the on immigration for Ciro for minus and edgy. Plus, who's you're forming? A solid Come on industry action. So the NATO and education for destruction will be C R O for two minors. Jack was bless ah to Luigi Press. And this will give us aged to see are off for Sorry. So this is the net. Any equation for this reaction? Now we go to our next one. So here what we have is an address zero for is reacting with CSL boat operators and a seal and C zero for so from the federation condition off this one were given that a yellow precipitous formed and again we will identify which one can be our precipitated here. So from here you can see that sodium chloride is alkali metal compound and which is off obviously soluble in water. That thesis cannot be our solid precipitated. That means the other company form CS here. Oh, for will be the precipitated which is formed as the university did. That's like we'LL write this one as are solid and this is our solid person voted, which is formed in this reaction. Now I'm going to write down the balanced equation will just ignore all meet on the ions which are present in a quiz condition on both sides for Americans. See, their sodium and chlorine are present in a quiz condition on both sides and calcium and sear. All four are reacting to form this year zero for in the precipitated for solid form. So we just write down them to find out our NATO an equation. So the net on any questions here Oh four to minors is reacting with See it two plus to give us see if cr oh four in solid form. So this is the neuron immigration for this reaction? No, I'm off guard. Next problem. So from here we can see that Inish for dosage or for is creating with silver knighted to give us an edge for no tree and energy to see two or four And from the nation condition of this one were given that and white Percival his form And again we will identify who journeys are precipitate first. So we know that all the nitrous nitric compounds is soluble in water and also the ammonium compounds air saluted water. That means ammonium nitrate is obviously soluble in water and it cannot be or so president That was the other compound farmed. We've been the solid form and this silver percival it which is formed in this reaction. That means this is easy to see her. Oh, for his heir precipitate. Here and again we'LL just write down the net and equation by ignoring the ions which are presenting a quiz form in both side of the reaction in question. In this case, these are nitrate and the night and ammonium ion, nitric and ammonium dieser present in equals in both sides. So we just ignored them and write the NATO aggression by writing down the other islands of the compound. So the night on a cushion will be cto for to minors blouse too edgy Plus which will give us agent too Cito for in solid form. So this is the Nate energy question for this reaction. Now we'LL go to our next one. So in this case, we have been his photo city overreacting Asi asi alto tow for manage for Syrians See Sudo for and once singing In this case, we have another white respected on DH again. So an itch for seal is a compound ofthe ammonia, my own and which is obviously soluble in water. As you know that almost all are all vanished. For composers, Sullivan in water that was thiss cannot be our precipitated. That means obvious choices. CSCO for witches are sorry preceded forming this reaction. So the NATO and immigration will be just variation ofthe kill Sherman. See two or four to form this. Yes, it's over. So the NATO, in addition, will be sitio for two minors class. See it two plus tto. Give us he c too. Oh, for in solid form. So this is the note and a key question for registration. And finally we have Still, when I graduated with calcium chloride to produce you see it and CNN three two again, we have to find out which one is our precipitate here. So as you know that all the night great composers sellable that this's soluble in water and it cannot be our sort of person haters. So the other component which is the seal, is the solid person weight which is farmed. That Mr Nate Annie question will include only silver and chlorine in the reactor center agency around the product side. So the reaction other Nate Meineke question will be too edgy. Plus, fellas. Ah, to seal miners, Give us two. It is here as the salad. So this is the net. An equation for discretion. Now, in the second part of this questionnaire were asked to identify the precipitating, forming each of the experiment we should have already done. But we just recap it. So in this reaction, our sorry persuaded formless it is hell. Now, in the previous one hour, precipitated is or the in the fifth creation or personalities CSC two or four in the four creation. Our personalities aged two c two four in our target ation are possibilities. Si asi our all for in the second one. Our president is Eiji to sear Oh four and the first one. We don't have any sort of physically that formed

Before the solution. There's giving well, hopefully this year two is equal to 1.20 AM Well, now we calculate the number of moles off the people. Two boys representing the one I'm a rope by using its KSB value. Now by the situation since GSP off the PBS Year two is equal to 1.6 20 par minus five in a quest solution. PB cierto can be disassociated as we be sure to give Phoebe to positive plus two cnegative, therefore, by the question very scarce people to people to positives your negative old ways. Now, by putting the values in the equation at 1.600 100 par minus five equal to as toe a subscriber as is the sole ability off the PBC Air two injured solution. Thus as equal to 0.2 m equal to Piveteau positive hands. We conclude that there are 0.2 moles off PB two positive ion present in one l off solution. Therefore, the number of the malls off the people to a positive present in 1.0 amel off the PBS here too, is 2.0 into tend to depart minus five Moles. Yeah, 2.0 into tend to depart minus five more now the number of moles off the KR to see or for added toe the solution equal to morality into volume here putting the values in the equation that European 05 multiplied by one 10 l divided by 1000 and multiplied by 1.0 more, divided by 1.0 l, which gives 5.0 into 10 to depart minus five more according to the following equation. That baby to poverty place here Oh, for two negative gives BBC are or four if one more of PB two positive reacted with the one more off Fiat or four to negative hands we expect from the above most there should be sufficient number off malls off PB two positive toe, completely related with CR or for two Negative. So this was a complete solution off the caution step by step in detail. Please go through this in this first followed what our is given and then we use the week. I were the number of the people to poise representing the one drop by using a scarcity value since ksb as we know that off a BCL two is 1.7 20 par five. Then we found the value. As then we conclude that molds off to people to quantify and present in the one liter of solution. Then we found that there, for the number of moles off people to pose representing one more off the P BCL two on then we can vary the number of the most of the KR toe CR or for added to the solution which is equal to more late into the volume. Yeah, and by the creation PB two p c v two positive plus er to offer to negate e p b c r +04 It was one more off people to port objected with the one Morlocks er or for two negative hands we expect from the above Moore's. There should be sufficient number of most of the people toe to positive to calculate to completely related with the CIA or for do a negative. Go through this, please. Thank you.

All right. So for this question, we're again talking about some solid ability guidelines um with our four different ionic compounds that we're going to be using as examples A. B, C. And D. Throughout our little skeleton here. And we'll start with A which is going to be our and H. For harmonium. NH 42 The two is just there to balance out the charge with the S. 04 are sulfate and in this case both the sulfate sulfates are generally soluble and almost everything connected to pneumonia ion is also going to be soluble. So both of these indicates a liability. That means this is definitely a soluble ionic compound. Next we have our barium B. A. Carbonate, P A. C. 03 Now this is a little bit unique um because carbonates are sometimes soluble but because barium is a group three element, barium isn't group three on the periodic table. This actually becomes insoluble due to the barium. So this is going to be insoluble. The fourth example we have here is our PB lead nitrate and oh three. Now in general, lead is insoluble, but nitrates are very soluble. Um And if you look at our sustainability guidelines ah there is no exception for nitrates um to be insoluble when combined with the lead, that means that this is actually going to be a soluble ionic compound because of the nitrate. And finally we have kind of another unique case actually. Our calcium hydroxide, C. A. Oh h hydroxide is pretty unique because it can lead to some slightly soluble compounds which is exactly the case here because our hydroxide is kind of soluble and our calcium is soluble. But because of the hydroxide here, I forgot to add that too, because the hydroxide, this is actually a slightly soluble compound. So well draw, kind of a half check it's slightly soluble. Um Now we're gonna go through a little bit of what our question asks which is to actually write out the reactions with water. So we'll add our water for the soluble compounds here these are both going to be solid obviously because they need to dissolve in the water. Most ionic compounds are going to be solid anyway. But especially when we're talking about scalability guidelines, those ionic compounds are going to be solid because you need to show it's the premise of the problem that you need to show that they're going to dissolve in the water or they're not. So we have our liquid water combined with our I had it compounds and our little reaction arrow. And because these are both soluble they will fully disassociate, meaning they will split up into their ions. We'll have our N. H. Four and 84 Ammonium plus ion plus are S. 04 is actually Sforza to minus. Um So as you see, we have our little to hear that means we're going to need to ammonium ions to balance out the charge plus our nice little water that the I answer dissolved in. So this is going to end up being liquid water and these are both going to end up being Aquarius because they fully dissolve in the water. So these are both Aquarius uh pretty much the exact same thing here. We're gonna split up our ions. PB PB can have different charges like most of the transition metals. Um But in this case we'll use our two plus because there's too nitrates here and we'll do our two and three minus that way the charges are balanced again, these are both going to be Aquarius AQ and a Q. Unlike any of the insoluble ones, which would end up with solids and the mix of the water H 20 liquid water. All right, so we went over our sustainability guidelines. Did some examples, talked a little bit about some unique, unique exceptions, and finished off with our reactions.

Okay. So for the first one, you have NH four hole twice as so. four. So this is soluble and the equation will be Energy four hole twice. And so four move from energy food positive plus and so forth through negative two X. Moving on to the next one. Barium carbonate is in Hollywood. See part is lead nitrate in solid lead nitrate, a solid will. So this is BBN- 03 forming sleepy, too positive alliance, Less and all three negative lines and the pot is consumed. It's hydroxide and this is also soluble equation is see which will twice reform See you two positive across list, always negative, of course.


Similar Solved Questions

5 answers
Find the coordinates horizontal tangents:points where the graph of f(x)4x3has horizonta tangents.check, graph f(x) and see whether the points you found look as though they have(x,Y)(smaller x-value)(larger X-value)
Find the coordinates horizontal tangents: points where the graph of f(x) 4x3 has horizonta tangents. check, graph f(x) and see whether the points you found look as though they have (x,Y) (smaller x-value) (larger X-value)...
1 answers
Exercise 2.3.4. Lct (X,dx); (Ydy), (Z,dz) be mctric spaces and let f X 7 Y and g : Y _ % be two uniformly continuous functions: Show that 9 0 f :X - Z is also uniformly continous
Exercise 2.3.4. Lct (X,dx); (Ydy), (Z,dz) be mctric spaces and let f X 7 Y and g : Y _ % be two uniformly continuous functions: Show that 9 0 f :X - Z is also uniformly continous...
5 answers
5.(15) A 60 pF parallel plate capacitor is charged to 12 The capacitor is removed from the battery and the plate separation is increased from 2.0 mm to 3.5 mm_ (A) What is the charge on the capacitor? (B) How much energy was originally stored in the capacitor? (C) By how much is the energy increased when the plate separation is changed?
5.(15) A 60 pF parallel plate capacitor is charged to 12 The capacitor is removed from the battery and the plate separation is increased from 2.0 mm to 3.5 mm_ (A) What is the charge on the capacitor? (B) How much energy was originally stored in the capacitor? (C) By how much is the energy increased...
5 answers
If the Ka of the conjugate acid is 5.19 *10-8,whatis the pKo far the base?NumberUnitsFrom Ihe pKa we can calculale (he pKb because pKw 14.00 at 25*C:pKPK,14.00
If the Ka of the conjugate acid is 5.19 *10-8,whatis the pKo far the base? Number Units From Ihe pKa we can calculale (he pKb because pKw 14.00 at 25*C: pK PK, 14.00...
5 answers
9398 9811 6j
9398 98 1 1 6j...
5 answers
Problem 2_ Let B be the solid bounded by the paraboloid z? + 22 Find 0,6,0,d,e,f if =y and the plane I = 7. J3 Id(1,y,2) 5" f 1drdzdy: b. Evaluate the integral. Hint: (lf, Id(z,y,2) f JS 1d(1,2) dy:
Problem 2_ Let B be the solid bounded by the paraboloid z? + 22 Find 0,6,0,d,e,f if =y and the plane I = 7. J3 Id(1,y,2) 5" f 1drdzdy: b. Evaluate the integral. Hint: (lf, Id(z,y,2) f JS 1d(1,2) dy:...
5 answers
QUESTION 3pointsIf two wiaves overlap Increase the total dlsplacement of the medlum It Is calledConstructive InterterenceDestructive interferenceCircular interferenceLincat Interfcrencc
QUESTION 3 points If two wiaves overlap Increase the total dlsplacement of the medlum It Is called Constructive Interterence Destructive interference Circular interference Lincat Interfcrencc...
5 answers
(15/01/2021)Con difemnsiyel denkleminin: 2 Homojen cocumunu bulunuz b Puramelrelerin DeQisumi (Lugrnge ) vontem ik azel corumunu bulu Giene | corumunu Yuzina Find the homogeneous solution: b) Find the special solution with the Variation of Parameters (Lagrange) method: c) Write the general solution.
(15/01/2021) Con difemnsiyel denkleminin: 2 Homojen cocumunu bulunuz b Puramelrelerin DeQisumi (Lugrnge ) vontem ik azel corumunu bulu Giene | corumunu Yuzin a Find the homogeneous solution: b) Find the special solution with the Variation of Parameters (Lagrange) method: c) Write the general solutio...
5 answers
Peni) Find the terms through z" in the Maclaurin serios forf(z)SiTflah+O(+")
peni) Find the terms through z" in the Maclaurin serios for f(z) SiT flah +O(+")...
5 answers
Which of the following bone markings might you expect to find as part of the sllding surfaces of & synovial joint? Check all that apply:facetforamenmeatuscrestepicondylecondyle
Which of the following bone markings might you expect to find as part of the sllding surfaces of & synovial joint? Check all that apply: facet foramen meatus crest epicondyle condyle...
5 answers
Explain the difference between equivalent expressions and equivalent equations.
Explain the difference between equivalent expressions and equivalent equations....
3 answers
1,2
1,2...
5 answers
(1 point) Evaluate the summation using the properties of summations_Ra? 5i)help (numbers)
(1 point) Evaluate the summation using the properties of summations_ Ra? 5i) help (numbers)...
5 answers
#eak acu (BGOJ Sttonnibase (NOH)sltong acid (HCI} wcak Dase (NH,)weak acid (B2C O4) weak base (NH;)suong aad (FCI) + etong Mase (NaOB)Lowest eneigy requirementHighest energy requirementTnp cotoctankinj Cancoihe deleminedSubmit
#eak acu (BGOJ Sttonnibase (NOH) sltong acid (HCI} wcak Dase (NH,) weak acid (B2C O4) weak base (NH;) suong aad (FCI) + etong Mase (NaOB) Lowest eneigy requirement Highest energy requirement Tnp cotoctankinj Cancoihe delemined Submit...
5 answers
1. Compute the integral 5 points)24da Vi-zCompute the integral (5 points)J6*(-lnz)*d.
1. Compute the integral 5 points) 24 da Vi-z Compute the integral (5 points) J6*(-lnz)*d....
5 answers
For = the function:f()Explain why it is rational functionmarks)Find the vertical and horizontal intercepts.marks)Determine any verticahorizonta asymptotes_marks)Hand-draw sketch of the graph showing both asymptotes and intercepts:marks)Describe how You could transform the graph g(r)= to form f(x) (in terms translations, rotations, reflections, enlargements or stretches) (2 marks)
For = the function: f() Explain why it is rational function marks) Find the vertical and horizontal intercepts. marks) Determine any vertica horizonta asymptotes_ marks) Hand-draw sketch of the graph showing both asymptotes and intercepts: marks) Describe how You could transform the graph g(r)= to f...
5 answers
Section 433 Exencise 38 Sketch the graph of htx) =5x' 3," by Iirst finding iS intervals of incfease und decrease, its local exrema; ils ienals of concavity. and its inflection points
Section 433 Exencise 38 Sketch the graph of htx) =5x' 3," by Iirst finding iS intervals of incfease und decrease, its local exrema; ils ienals of concavity. and its inflection points...
5 answers
WeLils distnbuted Tha V 042 randd Conttrud 4 conttuncu #loclad culnpule 1 1 L 1 populaton 1 1 1 Haelencbie Wn Koare U 1
WeLils distnbuted Tha V 042 randd Conttrud 4 conttuncu #loclad culnpule 1 1 L 1 populaton 1 1 1 Haelencbie Wn Koare U 1...

-- 0.022209--