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- How many mL of o.677m HBrias needed to camputely of Naz cOg? nectralize 0.8989 Nan co, +2 HBr-> Ha COz + 2 NaBr -7- 3 31- Al kenes are Soluble by 2-What does The Branching do Wth The baing Pojent 3 B\ PrePare [2fen ty ne\ from Acetylene Q Complete The flowing rea ctions ... Li CH3-C=C-CHs Chs -CEC-CH, HI of 2mole CH, -C ECH H.0 Hg Soy ÇH3Q1) A Sada- Lime Sample is g0% NaoH and 10% Cao. f 3 gm is dissolved in 250 ml, what is Hthe tutal normality of the Selutton as abase ? How many mililiters of 0.5N H2S4 woutd be required to titrate ioo me of the Solution? Ans. ( 0.309N, 60.59 ml)
- d) 550 mL of o-0750 M Ag NOs from the solid reagemt e) 500 mL of 4-75 % (W/v) agueous ethonol 4) 250 ML Solution of 25 ppm of Na', from sodium suifate CNas So4)Expeniment and name Chemical formula Cobalt (11) nitzate Co(NOs)2 Buldatance Aane and dhemical farmula mm, q/mo! 182.95g lmol Fruihal volume , L Iniial concentrahion measure d, mal/L Number of mole's and massof mass Of solute 500ML 0.876 mollL 0 -438 mol Colw0z to Concentration after eventahom affer evapo 1.461 mal L Can you please explatn to calculate how the 180.19) cduo wsas arrived at ? Thanks asshord chalocide, 5Ocztis used as a very Mavina ayoet may sygretic chamistry expeimynts equation is SOC,(1) H,O (2) > Sozigs+H
- 73 Al ihe school ey decided to adt sodum carbonae (NaCOJ tohe sampled wster in the school tankin order to restore he sttavalue close to The balanced equartion for the reaction is Na,Co.e) + 2HC (ag - 2Nac (ag • H0()• co; (al 731 Calcuate the mass of sodum cartonate (Na,CO.) required to neutralize each 1 dm' of the sample water 732 Ater the neutralization. the water tasted saty. Give a reason for the saly taste of the water Refer to the equation above.-2 The PPm Concentration of 4.5 *la M Solution off Lif is I1940fやPm D 196. PPm 3 1950 PPmCalculate qtotal for 2.0 mol of I2 (M = 253.8 g mol-1; theta r = 0.054 K; theta v =310 K; g0 = 1; De = 35.9 kcal mol-1) at 300 K and 2.0 atm pressure. Assumeideal behavior (except in the calculation of qvib).
- K/s 9:06 hw.pdf > Hw () Determine the melarity of e-ch of the folloning 2.25 kg of Cusoy in 1.45 Lof solusion O,006 mol. of Br, in lo mL of soleie O. s 0075 gm of C HHs Noz i n 1.osmL of solution Hint. The atomic numbers used in the above Problem ave O = 16 Cu: 29 Br: 35 K = 19 CI - 7 S: 16 Al: 13 N = 7Write the expression for the K of H2PO;. HPO OH %3D [H2PO;] [HPO H,0*] %3D [H2 PO,] [H3 PO3[H3O*] [H2PO;] K= [H3 PO3][OH] OK= %3D [H, PO) What voluma of 18m sulferic acid must be diluted with distilo d wateir to prepare 300.0 mb of 0:50 M HA S04 2 इDO ,O