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Question 67 2 pts Calculate the mass % composition for Sulfur in the compound Sulfur trioxide,...
lage composition of 67. Exercise: A compound containing gal and sulfur has a percentage compositi 59.18% gallium and 40.82% sulfur. What the number of grams of gallium in 100.08 this compound? 68. Exercise: An oxide of lead has a percentage composition of 86.62% lead and 13.38% oxygen. What is the number of grams of lead in 100.0 g of this compound? 69. Exercise: A 2.00 g sample of cholesterol contains 1.68 g carbon, 0.24 g hydrogen, and 0.08 g oxygen....
8) Consider the following chemical reaction which is used to produce sulfur trioxide, a precursor in the industrial production of sulfuric acid: 2 SO2(g) + O2(g) → 2 50:(8) Important thermodynamic data associated with this reaction is listed in the table below. Molecule A Hº (kJ/mol) 0 -296.1 -395.2 Sº 0/K mol) 205.0 248.5 256.2 A Gº (kJ/mol) 0 -300.1 -370.4 SO (9) SOS (9) a) Calculate the equilibrium constant (K) for the above reaction at 25 °C. 6 pts)...
CH131 Summer Session 1, 2019 5. (gas mixtures) Sulfur dicxide reacts with oxygen gas to form sulfur trioxide via 2 SO(R)+ O(g)-2 SO,lg) A researcher studying the process introduces 725.0 Pa of SO, into a rigid reaction chamber at. constant temperature. She then introduces 500.0 Pa of oxygen. Assuming a complete reaction, calculate the final total pressure of the container. 6. (kinetic theory) Calculate the root-mean-square speed, v for N0p t20°C and 200 °c. 7. (kinetic theory) Calculate the temperature...
Question 14 2 pts What is the mass of 1.47 x 1023 atoms of sulfur, S? 7.83g 19.1gs 13.5 gs 22.99gs 12.5 g - Previous Next
67) In Fig. 3 composition is provided as mass % C (carbon) . a. Starting as a liquid at 2.5 m%C, with cooling, what is the composition of the last liquid drops at 1154C? Give your value here and mark with an "a" on Fig. 3. 1600- 1538 C 1500- 1495 C J Liquid 1400-1394c Liquid Cementite 1300- Austenite 1154 C Liquid Austenite (y-Fe) 1200- 1100- 2,08% 1000 Austenite + Cementite 900- 912'C A- o.680 800- 738 C (A,) 700...
Question 14 2 pts What is the mass of 1.47 x 1023 atoms of sulfur, S? 7.83 gs 19.1gs 13.5gs 22.99 g 5 12.5g5
15. The percent composition by mass of a compound is 76.0% C, 12.8% H, and 11.2%0. The molar mass of this compound is 284.5 g/mol. What is the molecular formula of the compound? A) C1oHO B) C9H10 C) C16H30, D) C20H30, E) C13H4O2 16. The percent composition by mass of an unknown chlorinated hydrocarbon was found to be 37.83% , 6.35% H, and 55.83% Cl by mass. What is the empirical formula of this compound? A) CH.CIB) CH,CIC) CH.Cl? D)...
Question 48 1.67 pts When people decide to spend a smaller percentage of each paycheck, this causes national saving to closed economy and the equilibrium interest rateto_Ina Increases increase decrease increase decrease decrease Increase decrease Ned < Previous Not ved Submit 30 SO 9 & 7 8 $ 4 % 5 # 3 6 2 P U Y T R W E к J H G F. D S N M B V C X Question 49 1.67 pts Fluctuations...
Drive Question 60 2 pts The equilibrium reaction below has a Ke-0.000018. At the equilibrium point, we would expect to see mostly in the reaction flask. HC2H30 m H + CH302 () HC,H,O, molecules CH:02 "lons both HC,H,O, molecules and Hand C H, , ions in equal amount Hions Hand CH 0,lons Next a 30 dtv A $ 4 2 3 5 6 7 9 w E R T Y C 0 A S D F G H K Z...
3 A compound of sodium and sulfur is analyzed to contain following mass of each elements Calculate is the empirical formula. Show all calculation steps by using conversion factor. give calculator value (c.v.) and Final value (f.v) to get full credit. Show steps (1.23) (Na-5.891 g and S-4.109 g) (6 pt. Step 1: Step 2: Step 3: Empirical Formula is: In the following chemical reaction. Balance the molecular equation by adding coefficient. Write the net ionic equation by adding phases....