Question

9

b) the reaction between aqueous solutions of cobalt(III) nitrate and sodium hydroxide to form aqueous sodium nitrate and solid cobalt(III) hydroxide. c) the reaction between solid zinc and aqueous hydrochloric acid in a single replacement reaction. d) classify the reactions in (a) and (b). 9. Hydrogen sulfide, given off by decaying organic matter, is converted to sulfur dioxide in the atmosphere by the reaction: 2 H S(g) + 30 (g) 2 SO (g) + 2 H2O() a) How many moles of HS are required to form 8.20 moles of SO? b) How many grams of O, are required to react with 1.00 mole of HS? c) How many grams of water are produced from 6.82 g H S? d) If 12.0 grams of So, are formed from 798 g of H S, what is the percent yield? e) How many grams of So, are produced starting from 2.66 g H.S and 3.00 g 0,? Which reactant is limiting? 10. A gaseous mixture containing 7.50 mol H (g) and 9.00 mol Cl.) reacts to form hydrogen chloride (HCI) gas. a) Write a balanced equation for the reaction. b) Which reactant is limiting? c) If all the limiting reactant is consumed, how many moles of hydrogen chloride are search '70 FIGHLIK :

Answer 1

225 g) + 30 kg 250 kg tana) 2 moles 3 moes 2 moles 2 moles 28 3410 amela 32:09 2001x 64-0669 2 rule 64069 2X18-015289 22.18-018283. mo 2 moles HS ? mors us give give a mole se 8.20 mules of so moles of this reavived a csame [8-20 moles as mules of so formed) MER - stolchometne releahon. I moles of the 2 x moles of a se moles of ę required 3 x ima ne males 2 1.50 moles. grams of a required 2 moles x molar mass. z 150 moles X3209 ? 48.09. 2x34 19 hs & gives 2x 18- 01528 9 ho. 6.829 tes - gives 7 ho mass of H₂O & produced 6-829 HS x 18.0158 g ho 34 19 hs 23.609 Calculate theoretical yield from 7.989 Mrs. of so

2x 34 19 7-98 g HS of this gives 2x 64.0669 gives ? g so so mass of so Theoretical produced 2 yield) 7-989 ths x64 -0669 so 34.19 us Theoretical Acrual grams percent yield yield 2 of so 15.0 formed a 9. 12-0 9 a actual yleld Theoretical Yield X100 1 12-09 x 101: T5-og ? 30.04. moles hs 2 mass 2 2.66 9. molar mass 34-19 moi 20.0780 moles It can give 0-0780 moles so mules 3-oog - 0.09375 moles. 32-09/ma from reachan, 3 moles o glue 2 moles sa 0.09375 moles o can give ? moles są moles so can give ) 2 0.09375X2 ? 0-0625 mores moles son produced from & is less So l acts as llmining reachand. so moles so produced a 0.0625 moles mass of so, a moles x molar mass so 2 0-062.5 moles. x. 64:0669 214.009.