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Calculate the percent composition by Wleii of each element in LiCIO .#L=%Cl =80 =...

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Calculate the percent composition by Wleii of each element in LiCIO .#L=%Cl =80 =

Calculate the percent composition by Wleii of each element in LiCIO . #L= %Cl = 80 =



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Calculate the percent composition of each of the following compounds: (a) dopa, C9H 11NO 4; (b) vitamin E, C29H 50O2; (c) vanillin, C8H 8O3.

Hi or even so in this question they asked calculated percentage composition of each of the following is here Lopa Than these With a mini and Cees Van Allen. So we'll begin with the first that piece. E. Yeah. L dopa. What you want? Yeah. L dopa. That is C nine H 11 N. 04 formula weight. What? That is equal to 197. So flushed. Well scented each of carbon. That is equal to nine into 12.011. Divided by 197 Wine 099 in 200. Mhm. Oh okay. That is equal to 54. Find 85% seeking mhm percentage of hydrogen that is equal to 11 into one in 200. Do I do to bite be strong? Mhm. 1 97.099. That is equal to five For you. 8 1%. Then tell percentage of nitrogen that is equal to 14 point not one into one in 200. Yeah. The only by 197 099 That is equality 7.108 then fourth. Okay percentage of oxygen that is equal to four into 16 and 200 divided by 197.099. That is equal to 32.47 percentage like that. Then be park. What? Read em in E. Yeah. Damn. In E. That is C29 h 15 and or two. So formula wailed my basic equal to 430.71. Then first point Percentage of carbon. That is equal to 29 into 12.011 in 200 Do I did by 400 30.71. And that is equal to 80.87 percentage carbon second point percentage hydrogen. That is equal to 15 to 1.008 into 100 divided by 430.71. And that is equal to learn point 702 approach and then towed. Yeah, Percentage of oxygen. That is equal to two into 16 in 200. Do I date by 450.71. That is equal to 7.43 of oxygen. Yeah. Then see part. Yeah. Yeah. When it is You're an indian By Deceit a chat or three. Which at function or three for miller. When Thank you. That is equal to 152 15 gram for mold. So first percentage of carbon that is equal to 18 to 12.11 in 200 Divided by 152.15. And that is equal to 63 points 153 5%. Say again, percentage of hydration. That is equal to eight into 1 point 008 You need to trade so Divided by 150 people points 15 and that is equality, 5.3 Personage. Then percentage of oxygen. Example. Look at that point oxygen that is equal to three into 16 into hundreds, divided by 152.15, and that is equal to 31 blind 54 woman 78%. Mhm. Thank

A simple way to calculate the percentage of an element in the Kalpoe is figure out how many grams of the element are present in what? Well, that come down, decide that number by the molar mass of the whole compound most like initially. What? I mean, we're so all right. And I'm color code this to make it really clear. So let's just say one all of this. We got one element of Silien. We're gonna wanna find the molar mass of that also in and over to convert to see how many grants that we have, Right? So for one mold times that by its molar mass figure holograms in one mould become a periodic table that 22.99 So what we end up with is for every mole of, uh, so being in this compound via you agree, did the same for chloride. So we have two moles of the coal right at present here. I'm sorry. One mole of chloride present. Multiply it. Smaller mass, Just 35.45 grams for everyone. So we're gonna end up with this 35.45 grand's of corn. All right, we're gonna do is that we have to figure out the molar mass of the entire compound. In order to do that, we're just going to add together the sum of the two elements. So the 22.99 of the Sodi in and 35 or five of the chloride we're just gonna add Just do it right here in this column sending about being 58.44 grand sodium chloride. Now, in order to find the percent composition of each element, take the mass of each element which we already figured out. Divide that by the mass of the entire compound. We just figured out this time I, Soni invites out, you're just gonna take 22 grand. So we already figured out by that by 58.44 brands of total compound, which we already bigger now and then us and end up being 39. 34. Okay, we're gonna do the same thing for the chloride. We'll take a 35.45 brands that we already I find that by 58.44 of the entire compound, multiply the holding by 100 and you end up see 0.66% Florida. So good way that will check your math. Here in these problems is to add up the percentages for each element of the compound and then just make sure you get 100. So the 39.3 or 16.66 is it's 100 not nearly 100. So long as you get like 99.99 or 100. That's what's a good way to double check here. Let's some body must do silver nitrate. As a second example. I hope this is Theo over silver nitrate. You're going to fine the molar mass of each element in the compound. And that's going to tell us how many grams of each element would be present if we had one bowl of this. Right. We have one, um, having here, uh, silver, we find the molar mass from the periodic table. So it's 107.87 Then we end up with 108 107.87 grams of We wanted to do this thing 40. Mind you again. We just have one nitrogen present on. Look here. You'll see that it's 14.1 brands. Okay, which states, as fortune point away brands of engine in this compound, they're really thinking for option. This time. We have three oxygen, so we'll just have to most by the whole day. My three. You know, the action has a molar mass of 16 grams per mole. So that gives 48 grams of oxygen. President is compact, so we wanted you. Now, add up some of all of these masses that's gonna get us the molar mass of the entire compound, and I just do it right here is if I'm adding than in a column. Well, that's only give us 169.88 gram. Okay, well, the entire all right. So now we have to do the work to figure out somebody done the work to figure out the molar mass of each elements or I on or Adam. And then we're going to take that number. Divide each one by the told mass of the compound is 169.8. There's gonna multiplied by hundreds of the need of a person. Okay. 107.87 for the silver I'm just going to do it right here to save time. Divide that by the 1 69.8 times 100. Would you that for each one? What we end up with is 63.5% for the silver. We're gonna get 8.27% in the next. They were gonna have 28.26%. Good practice here. Double check and just adult these three numbers make sure that their 100 or just close enough so 100 that it's like 99.99 And then another way you can kind of double check is just I mean, if you think about it, there's only one silver and only one nitrogen. Yet their personal composition is totally different from each other, since the 3.5% is much bigger than a 7%. But a good weight kind of double check that you've done The right thing is if you just think about the molar mass, I'll sober being so much larger than I engine. Oh, that makes sense. If you were the box to divide with 63.5 by 8 27 it's likely to give you the same ratio as if you divided the molar Mass, which is 107.87 divided by the 14.1. So that's just another way that you could double check your map and kind of make sure that it all makes sense, right? Let's do one more final this time we're gonna do a Mercury hydroxide. It was N G O H to write a Legion Durant disease, too. So we're going to say there's a good, affordable color coded break it down by elements. So for Mercury, we're gonna look it up on the fury out of table and figure out what is its molar mass. Or what is the mass of one element that we have in one mole of compounds on your table tells us that there's 24.31 grams per mole and we would have one mole of it here. That's great. So what we end up with is 24.31 grands of mercury in this compound, right? We'll do the same thing for oxygen, and in this case we're going to have two moles of oxygen. I will define that by Smoller, so the oxygen's molar mass is 16 but there are choose their gamble flying thinking about you. Right. So that's gonna give those 32 grams of oxygen present in this compound. So now we're into the same thing for high. There's also to hydrogen. Hellman's here. I shouldn't, Adam. So we're gonna say the 1.1 from the period table is grants caramel. So how many are present in the whole of this? And we're gonna times of making by two. Because they aren't you. So what we know with this 2.2 grams hydrogen in those compounds now we're going to do is figure out what is the molar mass of this entire compound energy that by adding up these three numbers that we just came up with, I'm just gonna do it right here in column. It's gonna end up with 58.33 and that's grams. Now, what we're gonna dio is have to divide each, um, mass of the element. I was totally mullah. Mask the compound inside by 100 so that we get a percentage. So say this. 24.31 grams of mercury by by the 50.33 and then times by hundreds, we'll go ahead and do that. All right. So for Mercury, that's in the end up getting us 41.60% for the oxygen. I'm gonna end up 54.86% for hydrogen. We end up with 3.46%. Okay, as always, it's good practice, Adam. These be free numbers and just make sure that you get 100 or number. That's very close. About 90. Nice. Okay. And then you can see here that 41.68 54.86 That means of the percent composition for bold mercury, an option are very close. And that would make a lot of sense, right, Because because the molar mass for oxygen is like 1.5% of, uh, times what it is or murdering and that means is that there are two of those only one of the mercury. It would make sense that they are nearly the same percentage. So these are just some ways that you can play with the relationships of the numbers. Just double check your math to make sure everything is there

You're doing it, we're going over. Question them very before in which calculating, um about singing out the mass person conventional Corey in different. So first up is calcium chloride, which is cco for you have more Corinne's, which it means you have four more supporting and the more than rest scoring is there for five times, for which is 1 41 0.8 g out of warm 53 pointy grounds giving you 92.1 first. Corey being is counsel iam hypo Corey. So I see a cielo to you have to other. You have to social card until it's gonna be 70.9 your arms over 1. 42. Were there any grams? Do you? 14 Marine for five person glory See, use meets you for cork acid in which is a cheerful for you have one more Cory, it's going to be 35 Wait for 5 g. Okay, The mother must've hcl a for which is 100 point for six doing you there any fine 22 person

Here we have to find and the person composition by must off all the elements in See it three b 04 all to first We will find the Moeller must off the gum boned more than myself. See a tree be four hold two is it will do three into more of myself. Kill she, um less do it into morning myself. Was this less? Do it in do plus eight into moral Mersa oxygen is equal Drew three into monomers off calcium ease 40.7 and Graham. But moon plus two into modern myself was first is 30.97 for Graham caramel less it in do mother myself Excision is 15.99 Down for more is equal to 310 point 174 ground for more is the completed more than myself. See it free your 412 No, we can find the person by Mars off all the elements. So person, by muss off Dilshan is it will do three into Moller myself. Gil Shaham divided by Moller myself, The compound in 200% is equal through three into 40 point 078 gram. But a more divided by 310 point 174 g per mole in group 100% is equal to 38.7 to 6 76%. But somebody must of calcium. Present in the compound is story 8.276% and next ease percentof west for us. Is it well too Do into Mordor myself was first divided by Moller myself The compound see a tree you for what is to indu 100%. Is it well too two into modern myself was for Aziz 30 point 97 for grand. For more you are aided by 310 point one C one for gram per more into 100% is equally true. What do you want? Point 27% in next is percent off Oxygen music will too three into Moller myself succeeding divided by mother myself The compound See a tree Your four fold rise in do 100% Is it well drew tree into one point You do it Get on the moon divided body more than myself. The compound is 310 point one C one for the Amber Moore into 100%. Is it well through for 1.27 person. You're begin Silly samu ners in the final result to behave the percent by muss. Oh, kids, um is 38 point 76% The person by Maas Oh, 1st, 1st is 19 point 97 person and the person by must off exceeding. He's for one point to a seven person. This is over final result.


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