CHEM 139: Acidso Bases, & Stoichiometry Practice Problems1. Phosphoric acid reacts with strontium hydroxide to produce a precipitate.a. Write the balanced chemical equation for the reaction'lrftt?o,{W + ?irftn W birrlrt)r qu,"L?,!^!}f'b. what mass of precipitate is produced when 25.0 mLof 0.750M ,*"",,Jfr?fJlJrlct with45.0 mL of 0.500M PhosPhoric acid?O,vtlo L, 91fr'Yt'U*0" "1r*lwry lrJrJ? 'Ulr:'mw(w'lr{,0 *V FilWvt& Il(l*[ *,fta)"iww,ffi0fr{fffurwD'lr t,'P'rM-0,0180v,A,'Nflr- [rrfu,ftuil,c. What volume of a 1.50M strontium hydroxide solution is50.0 mL of a 0.675M phosphoric acid solution?oWuor,lrlilrn(,l,lr,r,ilqvMDy2. Nitric acid can be prepared as follows: 3 NO2(g/ + HzO(l) -+ 2 HNO3(uq) + NO(S)a. Calculate the mass of NOz gas required to produce 250.0 mL of 1.50M nitric acid.lr,VVl'1CIdilrfr,1',^fi] ilg,rM-: Nqq ilL,\:J /2. Nitricacidcanbepreparedasfollows: :NOz(d + HzOA) + 2I{NO{u'q) + NO(g/b. Calcrrlate the molarity of a nitric acid solution prepared by bubbling 10.0 g of nitrogen dioxidegas in 500.0 mL of deionized water. (Assume the total volume of the resulting solution is aiso|Ml"t,W-.t0,'**X',trr, ^n.^,-v'qf,l,syb'orylaLvfio-{t/t,H' - toj (?.8 tozr [o q tnn') = g3. A stude4t prepares a calcium hydroxide solution by mixing calcium oxide wiith water,CaO($ + n2O@ + Ca(oH)z@q)a. Calcplate the molarity of a calcium hydroxide solution prepared by comprletely reacting 1.50 g ofcalci[rm oxide with 2.5 L of deionized water.b. CalcJulate the pH of the solution described in part a.l.ttt q (^0' 4C^g,l-d,crtry)r/ bb.o&qcno lmo'= o'An,h{',r',1 aW),lJ A ^ ^rr\[utol)r] = 'oniltltt,v"'l'ury)' -'l/'9 VItn foft)zl '=-{3Ftll0.oil0(,{100 M='0.0ltM0.0-!lt lq0M - fol{l ,xfuotgO,qm-'