Homework Answers
***Please type answer if possible*** GAS VOLUME STOICHIOMETRY PROBLEMS 1. The combustion of ethanol (C2H5OH) takes...
***Please type answer if possible*** GAS VOLUME STOICHIOMETRY PROBLEMS 1. The combustion of ethanol (C2H5OH) takes place by the following reaction equation. C2H5OH (l) + 3 O2 (g) → 2 CO2 (g) + 3 H2O (g) What is the volume of CO2 gas produced by the combustion of excess ethanol by 23.3 grams of O2gas at 25oC and 1.25 atm? GAS VOLUME STOICHIOMETRY PROBLEMS 2. Acetic acid (CH3COOH) is formed from its elements by the following reaction equation: ...
1. A gas with a density of 1.107 g/L is at 301 K and 740.0 mm...
1. A gas with a density of 1.107 g/L is at 301 K and 740.0 mm Hg. What is it's Molar Mass? 2. Phosgene, COCl2, is a deadly gas. What is its density in g/L at 298 K and 1.00 atm? 3. A gas mixture is 5.00 grams of Ne, 10.0 grams of He, and 15.0 grams of Ar gases. A container is kept at -100ºC and 7550 mL. What is the partial pressure due to Argon in mm Hg?
the first area is supposed to be kg km^2 year^-1 5. The photosynthesis of aquatic plants...
the first area is supposed to be kg km^2 year^-1
5. The photosynthesis of aquatic plants is given by the balanced chemical reaction 6CO2(g) + 6H2O → C6H12O6(s) + 6O2(g) leading to carbon fixation in the oceans. It is estimated that the mass of carbon fixed in the oceans is 44,5 x 10 kg km year. Calculate the annual enthalpy change of photosynthetic carbon fixation in the ocean per mole of carbon assuming 298 K and 1 atm. Oceans cover...
In the diagram below, nitrogen molecules are represented by unshaded spheres, oxygen molecules by gray spheres,...
In the diagram below, nitrogen molecules are represented by unshaded spheres, oxygen molecules by gray spheres, and chlorine molecules by black spheres. If the total pressure in the container is 900. mm Hg, what is the partial pressure of chlorine? 2. What is the partial pressure of helium in a gas mixture of He, Xe and Ar if total pressure is 5.35 atm, temperature is 55 °C, mole fraction of xenon is 0.298, and mole fraction of argon is 0.433?...
1. A solution is prepared by dissolving 20.2 mL CH,OH in 100.0 mL HO at 25...
1. A solution is prepared by dissolving 20.2 mL CH,OH in 100.0 mL HO at 25 degrees Celsius. The final volume of the solution is 118.0 mL. The densities of CHOH and H,O are 0.782 g/mL and 1.00 g/mL, respectively. For this solution, calculate molality, molarity, mole fraction of each component and % by mass of each component. 2. A solution contains a mixture of pentane and hexane at room temperature. The solution has a vapor pressure of 258 torr....
4.(16pts, min) Do either (a) or (b) (a) How many ml. of 0.0550M COH is needed...
4.(16pts, min) Do either (a) or (b) (a) How many ml. of 0.0550M COH is needed to titrate 16.30 mL of 0.0491 M Diproteid HX. The titration reaction is x + 2 COH - > C X + 2,0 (b) A 0.860 g sample containing Ag was treated Na Sia), to precipitate Ag Sio via - 2 Ag + 8 AS) If the precipitate of Ag S() weighed 0.138 g. what was the % Ag in the sample? Data: Atomic...
Please answer & explain 36-40 Calculate the volume of H2(g) at 273 K and 2.00 atm...
Please answer & explain 36-40
Calculate the volume of H2(g) at 273 K and 2.00 atm that will be formed when 275 mL of 0.725 M HCI (g) solution reacts with excess Mg to give hydrogen gas and aqueous magnesium chloride. 2 HCl (g) + Mg(s) → MgCl2 (s) + H2(g) a) 0.56 L b) 4.47 L c) 2.23 L d) 1.12 L 37. What is the total pressure in atmospheres in a 10.0 L vessel containing 2.50 x 10-3...
1)A voltaic cell operates at 298 K according to the following reaction: 4 Fe2+(aq) + O2...
1)A voltaic cell operates at 298 K according to the following reaction: 4 Fe2+(aq) + O2 (g) + 4 H+(aq) → 4 Fe3+ (aq) + 2 H2O (l) What is the emf of this cell when [Fe2+] = 6.5908E-4 M, [Fe3+] = 0.699 M, pressure O2 = 0.540 atm and pH = 3.10? 2)A voltaic cell operates at 298 K according to the following reaction: 3 Fe2+(aq) → Fe (s) + 2 Fe3+ (aq) What is the emf of this...
Question 1- Plot the root loci for the closed-loop control systems with K s b) Gs)H(S)425+2 s2+2s+2 c) G (s)H(s) = K+22+2 K(s+2) K (s+6) K(s+18) K(s+4.5) = (s+5)(s2 +25+5) f) G (s)H(s) K (s2+3s+9) g)...
Question 1- Plot the root loci for the closed-loop control systems with K s b) Gs)H(S)425+2 s2+2s+2 c) G (s)H(s) = K+22+2 K(s+2) K (s+6) K(s+18) K(s+4.5) = (s+5)(s2 +25+5) f) G (s)H(s) K (s2+3s+9) g) G (s)H(S)-(s+5)(s2+2s+s) h) G (s)H(s) = (s+5)(S2 + 25+5) i) G (s)H(s) = s(s+5)(s2+2s +5)
Question 1- Plot the root loci for the closed-loop control systems with K s b) Gs)H(S)425+2 s2+2s+2 c) G (s)H(s) = K+22+2 K(s+2) K (s+6) K(s+18) K(s+4.5) = (s+5)(s2...
25. You’re at the zoo and have a big red 3.20 L helium balloon. The barometric...
25. You’re at the zoo and have a big red 3.20 L helium balloon. The barometric pressure is 790.0 mm Hg. Then you hear the roar of a lion. Startled, you accidently release the balloon. It flies away. By the time it reaches the clouds the atmospheric pressure is only 0.300 atm. What is the new volume of the balloon? a) 6.20 L b) 11.1 L c) 1.06 L d) 8.43 L 26. A gas sample is held at constant...
the first area is supposed to be kg km^2 year^-1
5. The photosynthesis of aquatic plants is given by the balanced chemical reaction 6CO2(g) + 6H2O → C6H12O6(s) + 6O2(g) leading to carbon fixation in the oceans. It is estimated that the mass of carbon fixed in the oceans is 44,5 x 10 kg km year. Calculate the annual enthalpy change of photosynthetic carbon fixation in the ocean per mole of carbon assuming 298 K and 1 atm. Oceans cover...
In the diagram below, nitrogen molecules are represented by unshaded spheres, oxygen molecules by gray spheres, and chlorine molecules by black spheres. If the total pressure in the container is 900. mm Hg, what is the partial pressure of chlorine? 2. What is the partial pressure of helium in a gas mixture of He, Xe and Ar if total pressure is 5.35 atm, temperature is 55 °C, mole fraction of xenon is 0.298, and mole fraction of argon is 0.433?...
1. A solution is prepared by dissolving 20.2 mL CH,OH in 100.0 mL HO at 25 degrees Celsius. The final volume of the solution is 118.0 mL. The densities of CHOH and H,O are 0.782 g/mL and 1.00 g/mL, respectively. For this solution, calculate molality, molarity, mole fraction of each component and % by mass of each component. 2. A solution contains a mixture of pentane and hexane at room temperature. The solution has a vapor pressure of 258 torr....
4.(16pts, min) Do either (a) or (b) (a) How many ml. of 0.0550M COH is needed to titrate 16.30 mL of 0.0491 M Diproteid HX. The titration reaction is x + 2 COH - > C X + 2,0 (b) A 0.860 g sample containing Ag was treated Na Sia), to precipitate Ag Sio via - 2 Ag + 8 AS) If the precipitate of Ag S() weighed 0.138 g. what was the % Ag in the sample? Data: Atomic...
Please answer & explain 36-40
Calculate the volume of H2(g) at 273 K and 2.00 atm that will be formed when 275 mL of 0.725 M HCI (g) solution reacts with excess Mg to give hydrogen gas and aqueous magnesium chloride. 2 HCl (g) + Mg(s) → MgCl2 (s) + H2(g) a) 0.56 L b) 4.47 L c) 2.23 L d) 1.12 L 37. What is the total pressure in atmospheres in a 10.0 L vessel containing 2.50 x 10-3...
Question 1- Plot the root loci for the closed-loop control systems with K s b) Gs)H(S)425+2 s2+2s+2 c) G (s)H(s) = K+22+2 K(s+2) K (s+6) K(s+18) K(s+4.5) = (s+5)(s2 +25+5) f) G (s)H(s) K (s2+3s+9) g) G (s)H(S)-(s+5)(s2+2s+s) h) G (s)H(s) = (s+5)(S2 + 25+5) i) G (s)H(s) = s(s+5)(s2+2s +5)
Question 1- Plot the root loci for the closed-loop control systems with K s b) Gs)H(S)425+2 s2+2s+2 c) G (s)H(s) = K+22+2 K(s+2) K (s+6) K(s+18) K(s+4.5) = (s+5)(s2...
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