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25.0 mL aqueous solution of 1.64 M K2SO4 is necessary for a particular reaction: How many grams of KzSO4 would be needed to make this solution? The formula mass of ...

Question

25.0 mL aqueous solution of 1.64 M K2SO4 is necessary for a particular reaction: How many grams of KzSO4 would be needed to make this solution? The formula mass of KzSO4 is 174.3 g/mol.Enter a numerical value for your answer; omit the units of g K2SO4: Your answer should have three significant figures:

25.0 mL aqueous solution of 1.64 M K2SO4 is necessary for a particular reaction: How many grams of KzSO4 would be needed to make this solution? The formula mass of KzSO4 is 174.3 g/mol. Enter a numerical value for your answer; omit the units of g K2SO4: Your answer should have three significant figures:



Answers

What is the mass of solute, in grams, in $250 .$ mL. of a $0.0125 \mathrm{M}$ solution of $\mathrm{KMnO}_{4} ?^{-}$

Yeah. Here we have to calculate the mass in grams of 250 millimeter of 0.125 moller came enough for solution. So more Mall soft. KMN 04 is volume in later Times. The Mueller concentration 0125 mall bar later Which is equal to 0.003125 more. Now will calculate the molar mass of moller. Maas off Came and a four. Yeah. Uh Atomic mass support Hashemi's 39.10 plus for one manganese it is 54.94 plus Four times 16.0 atomic mass of each oxygen atom is 16. and altogether it is 158.04 grandpa. My now Months of Game & A four. My soft Came in. A four is number of moles of course in grams number of more times molecular mass. Armel Armas Number of more or less 0.003125 Times 158.04. And the value is 0.494 gras. Mhm. There are four Ma Soft game and four is 0.494 grand

Here's an easy problem. This is an easy solution. Can problem and were given the following information. I got shut this down were given a 250 mil leader volume of a 0.125 Moeller potassium permanganate solution. And our task is to find the mass of Salyut, which will be the K m n 04 the potassium permanganate. This couldn't be much easier. Polarity equals bowls per leader. Symbols equals polarity, Times leaders and most times, molar mass equals mass. Those are the three things we're going to use to do this. So let's begin our mole. We're going to figure out our moles of Let's just go right into it. 0.125 moles per leader, a potassium permanganate. We're gonna multiply that by 250 mL, but that needs to be converted to leaders by moving the decimal three to the left. So now I've taken care of my first step and I now have moles of Salyut and I need to convert that 2 g. But if you look down towards the bottom here, waiting for the molar mass is 1 58.4 g per mole, which I found by just having a calculated online for me. 1 58.0 for grams per mole. Bulls cross out. Leaders cross out. I can report the answer to three significant figures and the answer is 0.49 four grams Potassium per magnate circle. Problem done.

Question. I did three work off either. Moss of Civil Long, right? Most of sorting for writing precipitate civil. I got a civil civil they give us Hey, does he do a boy? If I and the concentration off dissolution he going 0113 a. M and green Identify mars off sodium chloride. We quite toe required to receive you, Titus Evil? Yeah. Now Saturday, you have to find a wall. Hope Seaver first. And from this, we can call fight. Oh, super the floor I Because now, because, um out right to precipitate a super equals the mouth. All right, in the sodium chloride. So we from here we can deci the more soothing war I and from the mall studying law, right? We can find a mosque off sodium. All right. And that's you have to do number more equal. More clarity. I fought a liter bottle. And on that, unless we have the right question to see the radio more off the chlorine and civil in the question why do you solve the problem? Chemistry? You got the reaction you have. You always had the right question. You won't want one, so they should be you take two boy A three Tom 10. 33. So you had the same if I seem about the radio. So I think it would only to do the math here and found basically bigger you super some conclusion being cause, um oh, up, Lauren. So receive a day. What? See? Over. He was saying, Um oh. Oh, Glory in sudden bar I man there. Hello, I'm That's with us. We've got a super and so didn't blow rise vehicle. Oh, hello to a Okay. Who be equal? Okay, Two boy 83 com 93. So I don't get you. Oh, I am. This should be equal mas to a three time 93 more. So, uh, no sodium chloride Temple Monye models. Are you all right? I saw these guys, all these school. Like, how many boy wants it fight from sodium chloride?


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