5

Supposc that a 2.750 g sample of chromium chloride hydrate, CrCb xHzO,is completely dehydrated by heating The recovered anhydous procct, CCb, wcighs 1.631 g F...

Question

Supposc that a 2.750 g sample of chromium chloride hydrate, CrCb xHzO,is completely dehydrated by heating The recovered anhydous procct, CCb, wcighs 1.631 g Follow Ihe stcps taken in loday' 5 experient and determine the number of watcr molecules in Ihc formula of the hydratechemical reagent bollle, poorly labeled as iron chloride hycrate , is discovered i the stockroom It is most likely either FeClz-6HzO or FeCh 4HzO A dehydation expcriment reveals that the hycrale is 36 22%

Supposc that a 2.750 g sample of chromium chloride hydrate, CrCb xHzO,is completely dehydrated by heating The recovered anhydous procct, CCb, wcighs 1.631 g Follow Ihe stcps taken in loday' 5 experient and determine the number of watcr molecules in Ihc formula of the hydrate chemical reagent bollle, poorly labeled as iron chloride hycrate , is discovered i the stockroom It is most likely either FeClz-6HzO or FeCh 4HzO A dehydation expcriment reveals that the hycrale is 36 22% water by mass Which of the two possible hydrate salts is it? A hydrate of zirconium(I) nitrate, ZI(NO3)z HzO was found to be 29.50% water bv mass What is the forula of this hydrate? Hint_ percent is parts-per-hundred Suppose that you start with a 100 g sample ofthe hydrate: What would be the mass of water and the mass of anhydrous Zr(NO3)2?



Answers

A hydrate of copper(II) chloride has the following formula: $\mathrm{CuCl}_{2} \cdot x \mathrm{H}_{2} \mathrm{O}$ . The water in a $3.41-\mathrm{g}$ sample of the hydrate is driven off by heating. The remaining sample has a mass of 2.69 $\mathrm{g}$ .Find the number of waters of hydration $(x)$ in the hydrate.

Good day. And this question we will solve for the value of waters of hydration. X. So first we need to find the mass of H 2 0. or mass of water. Castle rotary is equal to the mass of Hydrated compound. CUCL two XH 2 0 miners. The mass of anhydrous compound, Which is the CUCL two. So they must given in the Problem is 3.41 grabs My nurse. The anhydrous g is 2.69 g. Therefore The mass of H 20 is equal to .72 rounds. Now we need to solve the most of water and the anhydrous compound. So all age too old is equal. Duma's over Malema's where Mueller was is the sum of all the atomic one says of elements present in the compound. So mass of water is .72g Divided by 18.02 g per mole. And this will give us .03996 mol. Next more CUCL two is equal to much of a smaller must, Where most of the UCL two is 2.69 g And Mueller must of 134.446 g per mole. This will give us why is Hero 2001 mullen in finding the value of X. X. Is the ratio between mall of water and more of an hydro's compound. So this is All of water is for a 03996 mold divided by Why is 0-001 fallen. Therefore X is equal to do and a re hydrated compound is named US CUCL two two H 20. Thank you.

Good day. We know that a hydrate is a compound that has salt containing a certain amount of water in it. So in this case are hydrate is given to have a formula. So that's just write it first here that this is it is a salt with water embedded in it. So in this case our hydrate is given with the formula of CCL to a copper to current with X here being the amount of water that is embedded in it. Okay, for that is embedded per formula unit of the compound. So we are given that the mass of the hydrate is equal to 3.41. So this is the mass of this corporate to chloride hydrate. And uh it's given here that after heating the mass of the anhydrous high and hydro's or this is the mass of the hydrate after water molecule is driven off. Yeah. And it's given to be 2.69. So note that when hydrate is heated, its water molecules Uh gets evaporated. And so what is left is only the the ionic compound or assault. So in this case these 2.69 g Also is equal to g of CUCL two. So it follows that we can solve for the mass of water in the hybrid, which is just going to be equal to the mass of the hydrate. Less the mass of the it's closed. Yeah. And this gives us zero coins 72. We can convert this into most of water. It's going to be our step to convert this to most of water by dividing the mass By the molar mass of water, which is equal to 18. And that gives us 0.72 over 18. Where that's going to be equal to zero point 04. We can also uh let us also solve for the most of the Salt Sea UCL two which is g of CUCL two over its own molar mass. So we have to see her two points 69 right over 134 has its own water mess. So you will get 0.02. And at the state down the ratio of the most of um water And the most of CUCL two. So please. So this ignoring this. So we have most of uh H 20. Again divided by the most of cl cl 2/0 200.2. And this is give, this gives us to over one. So what does this ratio mean? This means that in the in the hydrate for every one mole of copper to chloride, we have two months of water. Therefore, the formula for the hydrate will be ceo cl 22 H 20. So that means the X. Value that we have presented above is going to be equal to two. So I hope that this is clear

Okay for question 108 went to wait. They we have tried want 55 I want 501 to assemble and dissemble is Dr After that When the last 31 I find so there must removed us in the muscle water and then come about this so in water and Jacqui soc when I drive and then civil clothes at a CPJ This way 72 to 5 grams. So what's a formal up? The original compound. And now first we have to let not though formula off I am no so four without a fallen lion Laura hydrates He's go f e c l s. And what the right after we drive, you have so and water right after we dries. So we see the mass of the compounding Redo. That means the water is evaporated. So much of what should be the must before dry minus must captive dry Therefore we get and water We always some Ambika We do the problem before on the more radio. So well put out only one. Oh, okay. Yeah, but no. 11 Ma. Unless we see, we have to call it a mall off Sewell arrive most You will arrive. Divi form are off the mother multiple arrives model civil or a a coda Marcy World blocks of Allah. Right device for Mullah Masum. Go! No! Right 35 more And now form the form other. We see the marks of a long cry with a model. Right? Right. So what a wealth here. So let Mom All right, unless with a more off soup up low rise, We got a mother months off long, right? We can cover the mosque. A plowright in No! Come ball! I am Lawry. So we should have Boy. Oh, Bio 35 Brown! Yeah! Look! And now we have in the in 3.3 point 3.1 I fi Graham off the sultan's after after try it. We have one boys haven't fight over 51.784 gram. All right, so therefore the mask. One boy full 11 gram And I We had amassed a plowright where the muscle by we can cover that. Um all of them? No and all rise Eagle. We have angler equal the music boy 17 a four from well divided by threat to defy 35.45 from? No, I want more. So they so you. Oh, no. Well, one model or already we call the big above. Well, I'm gonna go there then. Now we only copulate a mop. Ryan. So we have n i on a ego One boy for 11 ramayan All right. And now is in the radio. Okay. And and I an my eye on a mop up. All right, Ego boy. Oh, do fi so sick, More divided by boy 050 That was it. More high. Oh, boy. Oh, Fight 035 in your formal A. We have f a c e o s stompin What? So what off us? Equal The mob iron over the marble arise So we had to see it go 1/2. And how will it end up? And one one over N ego boy. Oh, do if I toe sit mall and ego boy Juan money boy, wanna one more ball? Oh, by 100 What So this equal Wong fall therefore the farm, you know, Now we substitute you the data here in the formula. So we have the formula should be f e c else for water

It's a problem. 23.24 crystals of hydrated chromium three chlorides are green color. So it is scream and have an empirical formula of C R. C. L. Three times six water and they're highly soluble. Question is asking you to write the complex iron that exist in the compound. So I have searched some reference from the Internet. When the color is showing cream, they have this formula and the solution will look like this color. There are other two possibilities. The purple and the blue green. That is not our case. So for the green color, we have the complex formula written as CR H 20 for C L too c l times to water. So that is the complex formula. But we need to look for the iron. So we know that the legal ins, which are attached to the medal through Primary Vallas, are unicycle. So this is ionized herbal and those lichen which are attached to the secondary, Bella's or non ionizing. So this is not possible. So the ionization of this compound in acre solution can be showing us here. The question would be si r h 20 four c l, too c l times to water. This is water solution. And after the Equus medium, we can chloride and si r h 204 c l too positive. So the complex I am that is formed by this compound will be this one. This is the complex. I am wicked for Question eight. All right, now question be is saying if the complex is treated with excess off silver nitrate solution how many moles off Silver Chlor? I will precipitate pra most of this solution. So when the complex is treated with silver Nitra solution for each more off this complex war, more off silver nitrate is required. This is because the chroma each too old for C L, too seal sit. Oh, After the ionization, we get C R h 20 four c l too plus and one chloride ayan. So one bowl of chloride I in that satisfy the primary balance of the complex. And this means that only one chlorine atoms that can be islands in a chris solution. So each more off this complex have one mole off. Cool, right? I am And one bowl of chloride ayan glory ad react with silver nitrate solution and giving one more off the white precipitate. And I am not doing that. So the answer for the part B is formal. All right, now move to the last part. Part C says crystals of in hydro's chromium chlorides are violet and insula ble in you Chris solution The coordination geometry of chromium in this crystals is hit Tetra hydro. So here we have the Tetra hydro structure off See our cell three right here. So the coordination geometry of this chromium art octa hydro Sorry, Arta. He'd roll. So each chromium is right here. The great color iss chromium and the green color are the chlorine. So as it almost always the case for chromium three plus how can this be the case for ratio of chromium to chlor I 3 1 to 6? Hard to answer this question we have in the case off in hydro's chromium chloride C r c l three h crummy alliance is attached to three chloride ayan, so the racial looks like it's 123 However, the structure of this is Otto he'd row and doctor he drove means that each chromium will be attaching to six chloride ions And why is that different? This is because all this chlorine eyes, all of them this irons chloride is share. So the chlorine and is shared by two chromium. I'm, for example, this one shared by this chromium and the other chromium. So that means each of this chlorine will be shared and half. And that is why the octa hydrogen meant for Jerome. Entry looked like this. And that is why the formula will be C o c l three.


Similar Solved Questions

4 answers
1. Prove: If A E B and the supremums and infimums all exist; then a. inf B < inf A and b. supA < supB
1. Prove: If A E B and the supremums and infimums all exist; then a. inf B < inf A and b. supA < supB...
5 answers
Find the exact value of sin(arctan(1/4)) 17 None of these2V15 1517Save
Find the exact value of sin(arctan(1/4)) 1 7 None of these 2V15 15 17 Save...
5 answers
Question 52 ptsThe test statisticfor paired-difference T-test is given by:vilr4tstatwhere "arepresents the null hypothesis claim on the mean differenceFor our study what is the value of the test statistic?(roundto decimal places)What is the corresponding p-value?(round to 4 decimal places)
Question 5 2 pts The test statisticfor paired-difference T-test is given by: vilr4 tstat where "arepresents the null hypothesis claim on the mean difference For our study what is the value of the test statistic? (roundto decimal places) What is the corresponding p-value? (round to 4 decimal pla...
5 answers
Find the derivative f' (x). f() = ezt 31+2 + Vz? 8r?
Find the derivative f' (x). f() = ezt 31+2 + Vz? 8r?...
5 answers
Let R be the region in the xy-plane bounded by the curves y =X and y = Yx , as sketched below:The Region R(a) If we rotate a vertical strip located at x; 0<xs 1, then we would form a0A: disk of radius r(x)at x-washer with outer radius R(x)and inner radius r(x) =at X.cylindrical shell with radius r(x)and height h(x) =at X.
Let R be the region in the xy-plane bounded by the curves y =X and y = Yx , as sketched below: The Region R (a) If we rotate a vertical strip located at x; 0<xs 1, then we would form a 0A: disk of radius r(x) at x- washer with outer radius R(x) and inner radius r(x) = at X. cylindrical shell with...
5 answers
2. Calculate the value of the following complex functions:b) Ln(-W+i) ,sin3.Check out if the Cauchy-Riemann equations are satisfied for the given function. Calculate ifit exists_ f(z)=iz+e:
2. Calculate the value of the following complex functions: b) Ln(-W+i) , sin 3.Check out if the Cauchy-Riemann equations are satisfied for the given function. Calculate ifit exists_ f(z)=iz+e:...
5 answers
'The larger the p-value in a test of hypothesis, the more significant the results are.OA False 0 B. True
'The larger the p-value in a test of hypothesis, the more significant the results are. OA False 0 B. True...
1 answers
Refer to Problem 56. After the switch has been closed for a very long time, it is opened. What are the voltages across (a) the $5.0-\Omega$ resistor and (b) the $10.0-\Omega$ resistor immediately after the switch is opened?
Refer to Problem 56. After the switch has been closed for a very long time, it is opened. What are the voltages across (a) the $5.0-\Omega$ resistor and (b) the $10.0-\Omega$ resistor immediately after the switch is opened?...
1 answers
Measurements on young children in Mumbai, India, found this least-squares line for predicting height $y$ from $\operatorname{arm} \operatorname{span} x:$ $$\hat{y}=6.4+0.93 x$$ Measurements are in centimeters $(\mathrm{cm})$. By looking at the equation of the least-squares regression line, you can see that the correlation between height and arm span is (a) greater than zero. (b) less than zero. (c) 0.93 . (d) 6.4 . (e) Can't tell without seeing the data.
Measurements on young children in Mumbai, India, found this least-squares line for predicting height $y$ from $\operatorname{arm} \operatorname{span} x:$ $$\hat{y}=6.4+0.93 x$$ Measurements are in centimeters $(\mathrm{cm})$. By looking at the equation of the least-squares regression line, you can s...
1 answers
Find the length of each of the vectors $\vec{v}$ . $$\bar{v}=\left[\begin{array}{r} 7 \\ 11 \end{array}\right]$$
Find the length of each of the vectors $\vec{v}$ . $$\bar{v}=\left[\begin{array}{r} 7 \\ 11 \end{array}\right]$$...
5 answers
Construct Ihe indicaled confidenca inlerval tox Iho populalion moan using Ito {-destribulion Assume tho populati = notmally distrbudod cho w *=128, 0220 0"6Iromngho Ona drsmaioladneeced
Construct Ihe indicaled confidenca inlerval tox Iho populalion moan using Ito {-destribulion Assume tho populati = notmally distrbudod cho w *=128, 0220 0"6 Iromngho Ona drsmaiolad neeced...
5 answers
Find the inclination $ heta$ (in radians and degrees) of the line with slope $m$$$m=2$$
Find the inclination $\theta$ (in radians and degrees) of the line with slope $m$ $$m=2$$...
5 answers
Determine whether each statement makes sense or does not make sense, and explain your reasoning.I'm graphing a polar equation in which for every value of $ heta$ there is exactly one corresponding value of $r,$ yet my polar coordinate graph fails the vertical line for functions.
Determine whether each statement makes sense or does not make sense, and explain your reasoning. I'm graphing a polar equation in which for every value of $\theta$ there is exactly one corresponding value of $r,$ yet my polar coordinate graph fails the vertical line for functions....
1 answers
A Government of Canada Treasury Bill matures in 120 daysfor $10,000. It is purcahsed at a price of $9,881.50.Compute the ratio j/ij/i where ii is the quotedrate of this Bill and jj is the annual effective yieldrate on this bill.Possible AnswersA1.0123B1.0317C1.0531D1.0792E1.0917actuarial class
A Government of Canada Treasury Bill matures in 120 days for $10,000. It is purcahsed at a price of $9,881.50. Compute the ratio j/ij/i where ii is the quoted rate of this Bill and jj is the annual effective yield rate on this bill. Possible Answers A 1.0123 B 1.0317 C 1.0531 D 1.0792 E 1.0917 actua...
5 answers
PreucFCJUC EouklICDUCLArzoclehzrccl: Jlote37nt4=Skch SOCLFok,#Onpkc U7meppibaziEedocnemMeonsimoscoord IlpFrcdu NNR}Frrduo A NERIFodlce B NKRITeaia
Preuc FCJUC Eoukl ICDUCL Arzoclehzrccl: Jlote 37nt4= Skch SOCL Fok,#O npkc U 7meppibazi Eedocnem Meonsimoscoord Ilp Frcdu NNR} Frrduo A NERI Fodlce B NKRI Teaia...
5 answers
The liqure shuvra tho oukaryotit; chramnqultiy pprr 4I4 Inle[EI~U culm) VJchcIc Sau Mllc ,i5 Gumg EY[Dji Draq Suyl; ulcar the oppuoprinte Iabals - MNor epectly (Aunut & 64 label "quail ulace-i] Tauets the LbeIs alamao plut lphnlietic? orde! lmom fom cnrun'TCTOLCayahiCi ?Srzu;AuceneUUetChollUGldCnnolnalalSinyKC Ljue:Prottlinii:(7neAnalneseLeanhillCColdJTt^Col -IntemnacoProcna?LcneeULCChtinedC7uj:and8n^208Tvnc herc I0 searchpart A
The liqure shuvra tho oukaryotit; chramnqultiy pprr 4I4 Inle[EI~U culm) VJchcIc Sau Mllc ,i5 Gumg EY[Dji Draq Suyl; ulcar the oppuoprinte Iabals - MNor epectly (Aunut & 64 label "quail ulace-i] Tauets the LbeIs alamao plut lphnlietic? orde! lmom fom cnrun 'TCTOLCayahi Ci ? Srzu; Aucene...
5 answers
QUESTIONThe number 2.5 1011 hassignificant figures.The number 494,100,000 hassignificant figures:The number 0.0000002 hassignificant figures.
QUESTION The number 2.5 1011 has significant figures. The number 494,100,000 has significant figures: The number 0.0000002 has significant figures....
5 answers
#2 Orde tke iigen 25 + 35 cbuive uum ~he Shankon k ordexig: Explam .
#2 Orde tke iigen 25 + 35 cbuive uum ~he Shankon k ordexig: Explam ....

-- 0.020510--