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Ba3( (PO4)2 (g) Moles of Ba3(PO4)2 (mol) Moles of BaClz 2HzO (mol) Mass of BaCl2 2H20Percentage mass of BaCl2 2HzO %)Moles ofNazPO412H20 (mol) Mass of NazPO4.12H20 ...

Question

Ba3( (PO4)2 (g) Moles of Ba3(PO4)2 (mol) Moles of BaClz 2HzO (mol) Mass of BaCl2 2H20Percentage mass of BaCl2 2HzO %)Moles ofNazPO412H20 (mol) Mass of NazPO4.12H20 (g) Percentage mass of NazPO4 12H20 (%)

Ba3( (PO4)2 (g) Moles of Ba3(PO4)2 (mol) Moles of BaClz 2HzO (mol) Mass of BaCl2 2H20 Percentage mass of BaCl2 2HzO %) Moles of NazPO412H20 (mol) Mass of NazPO4.12H20 (g) Percentage mass of NazPO4 12H20 (%)



Answers

Calculate the number of moles of barium chloride in $427 \mathrm{~g}$ of a $3.17 \%$ by mass barium chloride solution? a.$6.50 \times 10^{-2} \mathrm{~mol}$ b.$7.83 \times 10^{-2} \mathrm{~mol}$ c.$4.31 \times 10^{-2} \mathrm{~mol}$ d.$7.81 \times 10^{-2} \mathrm{~mol}$ d.$4.27 \times 10^{-2} \mathrm{~mol}$

Here we have to calculate how many moles of barium fluoride is present in 427 g of 53.17% by mass. Very um fluoride solution. So, Moskow baby, I am chloride in the solution. Yes, 427 Grand Solution Times 3.1 x 17, divided by 100. And the value is 13 5359 g. So 13.5359 g. Or barium chloride is present in the solution. Now, molecular weight off barium chloride is 208.23 g par more. So we have to calculate now number of number of malls up. Very ample ride in the solution. Yeah, So Mazar barium chloride in the solution 13.5359g, dividing by the molecular weight which is 208.23 grandpa more. And the value is 6.5 times 10 to the power negative too months. So the option A is the right answer Option. A has 6.5 times 10 to the par -2 more.

No, it's unusual. Convened billion miles be made to bless Syrians. Are we decided into this? They need to do this work for they get a precipitate off medium. Serve it. That's who. A nameless No. The prosecuted Yes filter on it was going to have on March to 58 million. We have to find the master volume in the order in solution Moscow medium in the organ solution you're creating Samassa mediums are good. No, in order. Quite out this It was really great. The more Moses more or months of millions. And it is good to get it 14 and William I only 1 37 pointing so one grandma billion sell failed convenes 1 g Iridium serpent on Dean 1. 37 foil team upon 2 30 15 0.4 gram baby So 2 50 will contain 2 58 mg The amount off the insult way have recovered as a recipe this will contain. You appeared in the 1 37 0.3 upon 2 33 playing for milligrams off millions that should be equal toe one her feet 1 52 million young That should be the and although billion percent in your

Okay, so the first thing I would do is write out a balanced chemical equation. So they tell us b a x two. So the reason why is X two is because barium has a two plus oxidation and all the lights, college ins have a negative one. So to hear negative one here, right, we get B A X two. Plus, they're selling its reacted with H two s, +04 two year old B A s 04 and the other product is it's X. Now we have the balances out. So we see that we have one barium on both sides. We have one. So for on both sides, one oxygen on Oh, no. We have four oxygen's on both sides. We have two x on the left. We only have one on the right, so we need to bounce out. Then we have 200 is on the right, and we have to hydrogen on the right. So now it's balance. So the first thing that we do is calculate how many most of B X two was needed to produce 20.1 to 4 g of BSL four. That is a 0.1 to 4 g of B A s 04 one meow of BSO four is equal to 233.37 g. Now let's look at the multiple ratio. Yes, a four. Now we see it's a one to one ratio. So one mo of B A s 04 is produced from one mole of B A X two and we get five points 31 times 10 to the negative for most of B A X two. Now in the question, they tell us that we started with 0.158 g of B A X to this means that 0.158 g of B X two is equal to 5.31 times 10 to the negative. Foremost B, a X two right, Because we calculated this is how many Moses needed to produce this many grams of B S 04 and they tell us we have 40.158 g. Start with and that produce put 1 to 4 g of bso four. So that's why these two are equal. Now, in order, calculate the molar mass promote. All we gotta do is take 15 0.158 divided by D mo It's grams Pramono and we get 297.35 g per mo off B A x Ooh, Now we got to do since we know how much One mole of the X two ways we know be a weighs 137.33 g. All right, plus two ads because X is the same Adam so but we have two of them. So we have the plus two x physical to 297.35 and I got to do now is just software X. So if you were to subtract 1 37.33 33 from both sides right, we would get two X is equal to 160 plans 02 Now we divide by two and we get X is equal to 80.1 And when we look on the PR table, we see the element that is closest to 80 is roaming right roaming. So our compound I own compound is B A. We are

Okay, Father Problem. 1 41st we have toe Nick this month. That's money. Why do something Stop problem by this disease. What a way we can! So so last sorting where I had a mom and bought a single or I get be more. So you let the Russian off the mystery with a set super nitrate when they say such of when I tried that mean sodium fluoride Both asking a lot. I convinced me to actually soup when I drink and no more. And the after we die in question, we have to find a more radio with more right or money problems in the many rivers rivers problem. So now I do. I think you're familiar with this. So what? Most of the ball, right? I got a more civil 90 s and that a more civil All right recipe day The same for me, Mom. Potassium chloride. We have be mom. What? That's him precipitate. And now we know and we more time on a must. That's why I'm off civil colorize equal Moloch mas of civil. All right, I'm time Optimal arrive possible will rise up in the question A and be the first question is sick ambition a less theme? All right. And that we have on We spend this from this form, you know? So we get one for three for a one off one for three by 58 plus one. Part 35.5. Big equal. 1.913 grams of ala. Right, This number. Davy was quick in the problem. And lest the similar way with company for the mass of mutual, but doesn't learn I and Castle. So the ball, right. So must also what I saw the mother mother for the right time for them also right and mass support. That's a lotta equal model possible. That's all right. Come. Far more observant. So what? That's a blow, right? So from this question, we have 58 boy eight and time for 74 foot. So the 4.5 b, will you and be so we're with another units that easy, though That's much out how I shall most in the fire. And now I has set off a question. I wanted to do one right here, one in possible right, and be too far the muscle. Mitchell, I have this question so I think you're familiar with the system. And you could your calculator. You can buy a nd after you get a a That mean that my officers right on your tie for the mother mouse About Mariah. You that a boy? Three a one round. And I said You come with a for the mass offs possible right is that they don't need to pound a month for that's not drive us. I call that here too, because the only i percent so after that you got percent off sudden chloride divided by the mass of the picture. You left 23 poison for 75%. And because they only tools to something so one get was already you can get and I want to present minor another percent u had a Baz enviable. That's simple. Alright. And here I have I you see, maybe our and so I needed different from gonna be on about formed about as off another professor. So here, because I use it for housing for people Wanna wait Mooring equals 5.533 But at some point tonight, that easy for auto populates good


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