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When 100.0 mL ofa 0.100 M aqueous solutlon of potasslum phosphate (K3PO4laq)) mixed with 100.0 mL ofa 0.00 M aqueous solutlon of magneslum nitrate (Mg(NOzlz(aq)) ho...

Question

When 100.0 mL ofa 0.100 M aqueous solutlon of potasslum phosphate (K3PO4laq)) mixed with 100.0 mL ofa 0.00 M aqueous solutlon of magneslum nitrate (Mg(NOzlz(aq)) how many grams of precipitate will form?Multiple Choice1.31g2.63 g0.8763.61 91.48 g

When 100.0 mL ofa 0.100 M aqueous solutlon of potasslum phosphate (K3PO4laq)) mixed with 100.0 mL ofa 0.00 M aqueous solutlon of magneslum nitrate (Mg(NOzlz(aq)) how many grams of precipitate will form? Multiple Choice 1.31g 2.63 g 0.876 3.61 9 1.48 g



Answers

Calculate the mass of calcium phosphate that will precipitate when excess sodium phosphate solution is added to $100.0 \mathrm{mL}$ of $0.130 \mathrm{M}$ calcium nitrate.

So here we're looking at the following equation to K O. H. Equus at M G N 032. Equus gives us mg oh H two. There's a solid A. two. 03. Yeah, so in this reaction to precipitate as magnesium hydroxide, So potassium nitrate readily dissociates in water. two irons. However, magnesium hydroxide forms of white solid, commonly known as milk of magnesia. Here we're calculating the massive precipitate, Which is not .583 g concentration of the LH minus irons is zero mola final concentration of MG two plus irons 5.002 times 10 to the -2 Mola concentration of N. 03 minus irons is not 30.200 moloch concentration of K plus irons is not 0.100 mola mhm. Mhm.

Yeah, how many grams of calcium phosphate will precipitate if excess calcium nitrate is added to a solution containing 3.98 g of sodium phosphate? Let's start by writing the balanced equation we have calcium nitrate has added to sodium phosphate. This will cause a precipitate of calcium, phosphate to form and sodium nitrates. To balance this equation, we will have to put a two here, three here and a six here. We're told that we have 3.98 g of sodium phosphates, and we have an excess of calcium nitrate there for the sodium. Phosphate is the limiting reactant, and we'll use that to calculate the amount of precipitate that is form so 398 g of sodium foss feet will convert two moles. Mueller Masses 164 0 g in one more or stroke geometry three Moles of the sodium phosphates 21 mole of the calcium phosphate Eat. I'm sorry this'll should be. Did I get the balancing incorrect? I did. Let's go ahead and fix this here at a backwards here. This should be a three. That should be a two. We will change this here. Its three calcium to to sodium 21 calcium phosphates. One more. This should be more here. Calcium fast feet has a mass of a 310.3 g. Calcium phosphate. Working this out here, I get 3.77 grams of the precipitate calcium phosphate that will be produced.

So here we have to a queer solutions that contains several different irons. We're balancing the molecular total Ionic on net Ionic equation for the reaction when we mix two solutions. So while molecular is listed with our total ionic where we're looking at the ionic interactions followed by the Net ionic, where we've removed our spectator ions. So the massive precipitate that is formed is what will be considering next. So the precipitate the C A c 03 while are limiting re agent s C A two plus. So the moles of C A C 03 is not 30.1 moles to the mass of C A. C 03 is miles multiplied by molecular weight, which is Emma, which is 10.1 g. Next, looking at the concentration of each iron and solution after reaction. So the moles of C A two plus is not 20.1 miles. Subtract the malls off C A. C 03 which is zero malls. The malls of ch 03 to minus is not point not five miles. The miles of sodium plus it's not 50.3 in the malls of chloride ions is not 0.2 moles. I've included all of my workings for those small calculations for the last portion off the podcast upon the screen.

Person 107 They give it to a solution. A solution contained 200 meal and is fear if four e one more. And now from this picture, we can tell Barhoom boy do. Oh, Ma! All right. And Lawry boy. Oh, Mom! So you boy a Aloma and so fate Boy Homa. And when you come by this, I m together with the only bathroom and so fake an some precipitates. So we're I question And because the rate of his 11 So if you have boy too more so, This is 3.2 a woman too. So after reaction barrier body, um, graph and so far left. So we had a precipitate a We can come recipe day here. All right. I see every day the mosque off the CPI day by room. So face ego boy, do more on time. 233 boy for one graham bottom. So face over one more. Oh, bottom sofa. So with guns away guns or the mall And those simpler sent the symbol. So we have Hominy ramya for boy 67 from bottom sofa high. And now the concentration and the volume volume off the media we act together should be 200 meal love 200 meal you go 400 meal I So now we calculate the concentration. A pitch? Ryan, I know this should be on the four here, the one thinking only fall here. So we have one. And and we continue to cover like low. Right. So deal recall with a sodium iron is equal boy eight over 400. Ma, this eco do am I? And so face no to him and no concerned Grayson off Sophie boy dual while divide 400. You know how the grass if it's I hear and this being cool, boy. Oh, him. Are we done?


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