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92 DATA revERsIbIUITY E of your obe 34hHIDaATESIUDIauppor Your anawer aydrcg Give ovidence Ar AlL compoundsangwer Do all hydrates lose water? Explain youretjl2ba Z*...

Question

92 DATA revERsIbIUITY E of your obe 34hHIDaATESIUDIauppor Your anawer aydrcg Give ovidence Ar AlL compoundsangwer Do all hydrates lose water? Explain youretjl2ba Z*O1aJU_ IAD 2w0izu_Ohoj KOaRotA 40 Ytuidi2az , 9compounds? Give evidence support Your HOSWC Are all hydrates coloredBoace3U0Li3o 'OLJO ' Qoinpercentage Of Bacl ' 2H0 IS AN UNKNONN SAMPLE NO (14bneoup example trial 121_ Weight of unknown gample (g) 1.064 Weight of residue (g)- Taajyhnommca 0.147 Weight of HzO lost (g) 0.9

92 DATA revERsIbIUITY E of your obe 34h HIDaATES IUDI auppor Your anawer aydrcg Give ovidence Ar AlL compounds angwer Do all hydrates lose water? Explain your etjl2ba Z*O1aJU_ IAD 2w0izu_Ohoj KOaRotA 40 Ytuidi2az , 9 compounds? Give evidence support Your HOSWC Are all hydrates colored Boace3U0Li3o 'OLJO ' Qoin percentage Of Bacl ' 2H0 IS AN UNKNONN SAMPLE NO (14bneoup example trial 121_ Weight of unknown gample (g) 1.064 Weight of residue (g)- Taajyhnommca 0.147 Weight of HzO lost (g) 0.998 Weight of BaCl 2H,0 in unknown gample 2H,0 in unknown sample (%)_ 82.2 5. Percentage of BaClz ttrial CALCULAIONS Aet- usb



Answers

Chemical Formulas from Experimental Data

A chemist decomposes samples of several compounds; the masses of
their constituent elements are shown below. Calculate the empirical
formula for each compound.
$$
\begin{array}{l}{\text { a. } 1.245 \text { g } \mathrm{Ni}, 5.381 \mathrm{g} \mathrm{I}} \\ {\text { b. } 2.677 \mathrm{g} \mathrm{Ba}, 3.115 \mathrm{g} \mathrm{Br}} \\ {\text { c. } 2.128 \mathrm{g} \mathrm{Be}, 7.557 \mathrm{g} \mathrm{S}, 15.107 \mathrm{g} \mathrm{O}}\end{array}
$$

Solution for But in step one, one word must cease to Moore's using Muller muss Mercy's next inward waas into Milly Moore's, then determine didn't but, Ah, Moors Oh, each the lee means the Lady Eve to the other. Elements divide oh, quantities by the smallest in bombed of merely moms. Look, so we hear believes 1.6 by fun of a G into when more love e G. Divided by 107.8682 Good, I'm, uh, a g sin hurt into dozen. Milly Moore's Oh silver, divided by one more off syllable, is equal to 15 wind free 057 Merely moles off, similar in Next to be if if you don't mind one due to for Gramma oxygen into one more off oxygen divide by 15 point 9994 Grandma Oxygen into goes and milling roll of oxygen divided by one more. Off exceeding. Is it well too, seven point six 503 Really wall of oxygen. So here graham off oxygen concern from all of boxes in Kinsale so left it is minimal of oxygen, and we hear 15.3057 Milly, mole of silver divided by 7.6501 Really more is it will do more love. Ciller's and 7.65 Little three, divided by three million more off oxygen, divided by 7.6501 Really more off many more. Is it going to one oxygen? One more off oxygen so dear, for so there for the and Danny for Mullah is G. Do Oh, in step, do but be solution. Convert these mercy's do malls using Moller Mercy's NextGen word moles into Millie Mel's, Then Did you mind? Did Mindy number of walls of each really meant related to the what that really means. Divide all quantities by smallest in murder, merely morgues eliminated Fractional frictional coefficient by Monty playing all coefficient by two. So you used little 0.67 Do Graham off carbon monoxide into one more off Herman Mono site. Divide by 58.9. Tree tree to grandma of carbon monoxide into Goes in Milly. Moral off carbon monoxide divided by one more love. When one upside is equal to 11 point who, as you know three. Milly Moral of Goodman. One. Off site cancer can sell Malkin Silken cell in next ease 0.569 that I'm love student into one more. One more This stadium divided by 74.9216 Good. Um, a stadium into goes in merely mold. Stadion divided. Buying one more. The state in easy to 7.5946 Muli Mold office stating So here, Graham can send role model consent to live with this minimal and next to give was your brain for a six grandma succeeding into one more off excision Diverted way. 15.999 For gamma succeeding into those in merely more off oxidant divided by one more love exceeding is equal to three point 376 merely more well exceeding. So here, Gram Gram concealed more more concerned left this Milly mode well, oxygen in next. It is 15.30 while you save one, many more see or do eroded by the smallest Iman tamales. Seven. William 65 gentle one Milly Mall is equal to three by two. Could've been monoxide in seven point 7.6503 really more. It's did in divided way, say, 1.65 little one many more is equal to when more love stating and the next one is 30 Blind 376 Milly, Mall of Oxygen Divided way Sumer list Amount. Um, only 7.650 When mini mall is it will do for more love accident. So here we hear two into tree by do see or is it going to increase the old and here two in new ones is sticking is able to do stating And here we have to indu for oxygen was able to add oxygen deal for sh The in very good formula Mullah is see or tree it is too or it stick tree in solution for barred seem solution Cardboard sea could be here Convert the masses to malls using molar masses. The next one word malls into Millie malls Then determine the number of malls off it. Element related to other elements. Divide all quantities by the smallest amount of millennials. So the solution off this is when one point for for tree gone S e into one more is e divided by 78 point 96 Good. Um, s e into those on merely well of is a divided by one rule of E. Is it going to a Dane? Billions getting going through seven. Five Mill Imola is e so your gram gram can seem more can said so. Let these Millie Mullah, Is he in? Next? He's five point 841 Be, uh, into one more b r divided by, say, 19 0.904 Grown be, uh into does in merely mole. Be, uh, do you already buy one? We'll be a is equal. Do 73 point 100 really more be a me and 18.275 Merely more is e diverted away. It didn't point through 75. Milly more is equal. Group one more is E and and seal into a tree. 0.100 Milly more Be good. Do I did way 18 point through 75 Milly moon is it will do for be a So the in medical formula is mullah Is is e be, uh, for

And do you tol question for a change. So for each one, you have to convert your grams to moles within the white. By whichever comes as Geronimo has the least of animals on that you be But Tremaine, your so for party. You have one point 24 fun grams of your goal. Hello, everyone. 50 0.6 groom's during you 0.2 moles. Well, you go then. You also how I bring. All right, So which is for Forney? Jury 81 1. 26 point win. You point 04 Which was in I point. Oh too I for Don't worry my friend too. I want to You're you and our it go. Thank you. Her b. Yeah. So you remember. So we have 1.443 grams of Sardinia. One more here in a partnering grounds. Do you, boy? Oh, me. Well, so serene you. And then, uh, roaming, which is five point 841 rooms. Well, for me then everyone. Everyone bull Excuse you point Oh, scoring three moves they need you see for you. Oh, me. And then we are 0.73 So I in my point with me doing a scene. Okay, This near for for part C She you have really himself. I have to point one to a ground Super Leo. One more ring grounds Read for 23 moles for grilling rain for so furry boy five mine, 7 g of sulfur one. Move 32 grounds to drain while also suffer. Then you have 15 points when us grams locks or more 16 grounds who point link for also oxygen. So then you have e well 23 Hubert like 23 So for 123 the oxygen point. Mind for door for 23 huh? All of them to you be e o for

Do They are going over Question 90 which restrict, articulate So first off columbarium and growing. So for parking Uh, 2.667 grams of very, um changed everyone. You have 1 37 0.33 grounds giving you worry. 019 of burying. And I mean, you have 3.1 one's fun room for me terms one more. So, being an important line Graham gives you like, Oh, 38 When you don't firing, do you get your that empirical for muse be e r me her sober but oxygen she 1.6 1.6 fry on grand. So silver, French for everyone More. You have 107 Why don't me so in grows which gives you one fine. Most of silver then one to 24 ground selects agent one more. We're 16 grounds giving you worry. 07 Most of oxygen Get a A key to burst over Box mining hurt scene Oh, a little bit because artsy this three soon she is your point 672 g of kobo. One more 58 4 line ground skill. You for you. 011 moves Khobar. Then you have fine. Six line grams over Yes, friends. One will 74 money grounds. Your boy. Oh, so IHS that no, actually have oxygen. You a plea for the 6 g locks during times? Well, 16 grounds point or three rules Oxygen. So then you have kobo put 01? Yes, at 0.7 Oxygen appoint home three divine my 0.7 during kobo or at 1.5, you know, one an oxygen for But you have talked by this break too, so that you don't haven't decibel you owe. She only race this during you. COBOL three. Yes. To arcs a Jew.

So today we're gonna be calculating the percentage of water in each of the following hydrates. So first we're gonna take SRC L. Two S. Mueller bass from the periodic table Which is 158.53. And we're going to keep that and use it later, we're gonna have six H. Two Os. Which have a molar mass of 18.2. So we're gonna multiply that by six for part A. And then divided by the molar mass, which is 1 58 53 and then add 66 times 1802. Again for the water to get the total mass. And then multiply that number by 100%. Which gets us 40.55% h. two out for B. We're going to take to 94.18 which is The K 2 C07 Molar Mass. And then where we are going to hold on to that and use it after we take two H two Os, which is 18.2 um times two. And then divide that by 294.18 which is the molar mass, add it and then add to that Two times 18 2 and multiply by 100%. Which gets us 1092 each. To help for C. We're going to have um 1 36.98 g small which is the molar mass of C. O. C. N. Three. But we're going to use three times 18.2 again Because it's three h. 20. Divide that by 1:36.98 which is the molar mass we just talked about and then um Actually that's gonna be three Time is 18.02 times 100%. Which gets us 28.28% h. 20. And for d. Um we're gonna take four H. Two Os. And multiply it by 18.2 because it's four H. 20 And then Divide that by 16 1.97 which is the molar mass of the compound and add four times 18 point to that And multiply it by 100%, which gets us 30.8%. H. 12.


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