Question

2. Mass-mass problems. Show your work and label your answers. a. How many grams of sulfur dioxide are needed to react with 10.0 g of oxygen gas according to the following UNBALANCED reaction? SO2 + O2 → SO3 b. Aluminum reacts with hydrogen sulfate to produce aluminum sulfite and water. If 32.3 grams of aluminum are used, how many grams of aluminum sulfite can be produced? C Hard water contains calcium sulfate and can be softened by adding sodium carbonate in a double displacement reaction. What amount of sodium carbonate would have to be added to react with 6220 g of calcium sulfate? Check to see if the equation is balanced before you start the math. CaSO4 + Na2CO3 → Na2SO4 + CaCO3 d. Tetraphosphorus decaoxide reacts with water to form hydrogen phosphate in a synthesis reaction. How many grams of water are needed to produce 25.0 grams of hydrogen phosphate?

Answer 1

+02 SO Ans mote e oxygen eeacls ulh Imofe Aulfue olieriole og ygenonvetting gram mofes inlo motes n mass motase mars to 32 31motes Dygn uaet uailh .31 dioxide Bilgue Convercting malus iulfuu olioriodeg meles moles X molare mas D.31 X 64 19 849 mass 84-pm togn ef ygeae i 19.84pm of eluepeis Henee duoxiole

b 24L t3 S04 3 2 moles Aemium uie alumihium Jm le preduee lyfite lonverting 32.37 y Aluminieun in to moles melus maas melase mas 32 3 27 1.19 moles nv Imle (Sg LX119 meus 2 melis 14 male Al 2 . S98 meles e ALCSO) 3 . AL Cso) lonversion o melus molus x molase mes mass, o- S98 x 198 11 8404.9 Aluminium A(SORS lenee L8.404

Ca o No ca s04 laSo4 eaet itn mele o bmele inlo moles Comveraion f6e 204 Lal04 62.20 136 h O.45mete O. 4Kmole moe ofAaz lo3 of Cas04 beaet uith o. 4 aunounl o Nao3 Hente ueeu be 0.45 l06 47-73 17

4% PO4 4 mole HPO4 bmele HO produce onverting it into mstes sgmf 25 n A 38 mells 4 moles opH P04 4x1.28 6 meles 3& moles O.42 meles POs H PO4 producead uill be- amaunl .92X 96 88.32 88 phaiphatz