Question

ACCOUNT Question 4 10 Points How many moles of oxygen are required to produce 200.0g H2O? BLANK-1 mol O2 BLANK-1 Add your answer Question 5 10 Points How many grams of oxygen are needed to produce 250.0 g of CO2? BLANK-1 g 02 BLANK-1 Add your answer Question 6 10 Points How many grams of C8H18 are needed to form 4.00 L of CO2 gas? BLANK-1 8 C8H18 BLANK-1 Add your answer Question 7 10 Points How many liters of CO2 gas can be formed if 1.25L of O2 are consumed in this reaction? BLANK 1 L CO2 BLANK-1 Add your answer

Answer 1

Q.4: 24g + O2 2H2O (Qoogm.) so, n mass Molar mass # Conservation Law for this sex? 200 200 3. Met males y no se 2 2X18 moles .5:- C + og → Coq R (250gm. ) . ro, = nco. = 250 - Meo, = 250 moles uy mas Je kn 250 we know that most med anderen -> 240 moles : T2 = 181.81 gm. 1

- 9.6.- Coldp +2502 -> 80% +94, 0 2 Cg H28 + 250g 18co, +18H20 (4 str.) giren volume (STP) 22.4 we know that moles of a gas = a neces 2 / 4 moles, n n coa 16 :: none " Colie = 2X4 - moles 22.4 X 16 Now ! Now is as a "cethe mas 44 Mcarlos mass of Cote X = 2.544 go? 's who 16 CO, + 18 H, O 0:7:- 2 C8 Hio + 250g - (1:25 Hr.) .: non = 1.25 .. 22:4 con nozi ncos = 16 X 1:25 = 0.025 22.4x25 - moles :: Neon = moles x 22.4 => 0.80 17 or 1800 ml)