Butanul se utilizează în calitate de combustibil la încălzirea locuințelor. Calculează volumul oxidului de carbon (IV) care se elimină la arderea completă a butanului cu cantitatea de substanță 2 mol
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- Ag(s) + PbSO(s) → Pb(s) + Ag* (ac) + So²² (ac). Datos AH 298: 53, 22 Kcal :53,41cal 4 AG 298: Cal дор, 8, 7- 298: K InKT K(T) = ? = InK 1 55,8 8,7 x 10 + 298 R -dᎢ . 298 T TE F 2,81 x 10 =28,8- 4,4lnT. T3c₂2- 1 Tap here or pull up for additional resources + 2 (s) OH- Complete and balance the following redox reaction in acidic solution H₂O₂(aq) + Cr₂O72- (aq) → O₂(g) + Cr³+ (aq) 3 O Reset e (1) H* Question 14 of 14 e 5 LO Cr 6 MacBook Air H 7 个 • x H₂O 8 H₂O* 9 (aq) H₂O O SubmitChp14-5(2)
- OCN-(aq) + OCI-(aq) → CO₂2-(aq) + N2(g) + Cl(aq) (basic media)The reaction glyceraldehyde-3-phosphate NAD + P→ 1.3 diphosphoglycerate NADH+H has a standard reaction free energy (pH 7) of A.G 6.3 kJ mol ngchemistry.com/peycenView/assic Soffset-prev Part A If the standard reduction potential of NAD +H+2e →NADH is 0.324 V, the reaction 1,3 dphosphoglycerate+ADP 3-phosphoglyce+ATP has a standard reaction free energy (pH 7) of A,G= -18.8 kJ/mol and the ATP hydrolysis reaction ATP H20 ADP PH has a standard reaction free energy (pH 7) af-31.0 Kmo, cacutane the standard reduction polantial for the reaction phosphaglyser+2+31+ gyoeraldehyde-3-phosphate + H₂O Express your answer to three significant figures and include the appropriate units. Submi PA .574 Previous Ar V * Incorrect; Try Again; 3 attempts remaining Predous ten31 – 33. An article in Scientific American pointed out that replacing a 75-watt incandescent bulb with an 18-watt compact fluorescent bulb would save about 75% in the cost of electricity. Electricity is generally priced per kilowatt-hour (kWh) and the rate is PhP 10/kW-h. Calculate how much money you would save over the life of one compact fluorescent bulb (about 10,000 h). Note: Standard incandescent bulbs last about 750 h.
- The enzyme cholesterol oxidase catalyzes the reaction between cholesterol and oxygen to form cholest-4-ene-3-one and hydrogen peroxide. Explain how you could use this enzyme to make a voltammetric electrode that produces a current that changes with changing cholesterol concentrationWhat is the oxidation number of phosphorus in POC13 ? VE ΑΣΦ ?Given the standard reduction potentials (Eo’) for ubiquinone (Q) and NADP+provided below, consider the following questions.Q + 2H+ + 2e- ---> QH2 Eo’ = 0.04 VNADP+ + H+ + 2e- ---> NADPH Eo’ = -0.32 V - Calculate the standard ΔEo’ for the oxidation of NADPH by Q. From the reactantsin your derived redox reaction, indicate the oxidant and reductant.- Calculate the standard free energy of the redox reaction in part (a) and indicate if thereaction is exergonic or endergonic.
- 9. PVD is used in the manufacture of items which require thin films for mechanical, optical, chemical or electronic functions. Examples include semiconductor devices such as thin film solar panels, aluminized PET film for nitride coated cutting tools for metalworking. If the AHcondensation of the material is 100 kcal/mol, and AHfreezing is 241 kcal/mol, what should be the total energy released in depositing 5 mol of substrate? Silicon the conductivity increases with increasing temperature, however, for tin its decreases though both of them belongs to same group in periodic table. Explain. food packaging and balloons, and titaniumThe Haber process is the principal industrial route for converting nitrogen into ammonia: N21g2 + 3 H21g2 ¡ 2 NH31g2Calculate the standard emf of the Haber process at room temperatureWe have talked about in lecture about metamorphic grade, and about the difference between progradeand retrograde mineral reactions. One such possible mineral reaction is as follows:orthoclase + sillimanite + H2O = muscovite + quartz 3a: Write a balanced chemical reaction for the above minerals, given that the formula for muscovite isK2Al6Si6O20(OH)4 3b: Indicate which reaction direction (left to right, right to left) is the prograde direction, and explainwhy you think that.