Answer
(a) O8= 128amu, 128g/mol
(b) Li2SO4= 109.94amu, 109.94g/mol
(c) O3 = 48amu, 48g/mol
Ozone (O3) in the atmosphere can react with nitric oxide (NO): O3(g) + NO(g) --> NO2(g) + O2(g). ( ΔH° = –199 kJ/mol, ΔS° = –4.1 J/K·mol) Write answers to three significant figures. a. Calculate the ΔG°( kJ/mol) for this reaction at 25°C. b. Determine the temperature(oC) at which the reaction is at equilibrium.
Ozone (O3) in the atmosphere can react with nitric oxide (NO): O3(g) + NO(g) --> NO2(g) + O2(g). ( ΔH° = –199 kJ/mol, ΔS° = –4.1 J/K·mol) Write answers to three significant figures. a. Calculate the ΔG°( kJ/mol) for this reaction at 25°C. Blank 1 b. Determine the temperature(oC) at which the reaction is at equilibrium.
Assume the reaction 3 O2(g) <===> 2 O3(g) (Delta H° =285 kJ/mol) is at equilibrium. What effect will each of the following have (explain each)? a) adding more O2 b) adding more O3 c) removing O3 d) increasing pressure in the container e) adding an inert gas f) increasing the temperature in the container
Be sure to answer all parts. The atomic mass of Cl is 35.45 amu, and the atomic mass of Al is 26.98 amu. What are the masses in grams of 3.3275 mol of Cl atoms and of 3.8611 mol of Al atoms? g Cl g Al K Prev 19 of 30Next > Be sure to answer all parts. The atomic mass of Cl is 35.45 amu, and the atomic mass of Al is 26.98 amu. What are the masses in...
determine delta H for Cl(g) + O3(g) —> ClO(g) +O2(g) 2 O3(g) -> 3 O2(g). H=-29.90 kj/mol ClO(g) + O3(g) -> Cl(g) + 2 O2(g). H=+24.18 kj/mol report to 4 sigfigs
Given the following data, 2 O3(g) ----> 3 O2(g) ∆rH = -377.00 kJ mol-1 O2(g) ----> 2 O(g) ∆rH = 545.00 kJ mol-1 NO(g) + O3(g) ----> NO2(g) + O2(g) ∆rH = -124.00 kJ mol-1 Determine ∆rH for the reaction, NO(g) + O(g) ----> NO2(g) ∆rH = ? kJ mol-1
Two Chem word questions!? 23. Magnesium oxide (Mg0) forms wh (a) Ir 1.25 g og MgO g of (b) What is the mass percent of O in Mg0? (c) How many micrograms of oxygen are in 534 kg of Mg en magnesium metal burns in air contains 0.754 g of Mg what is the mass percent of Mg in Mg0? 24. Boron has two naturally occurring isotopes: Bo ron-10 and Boron-11. If the atomic mass of boron(listed on the periodic...
1. 24.8 g of oxygen contains a. 9.33 x 1023 oxygen atoms b. 50 amu c. none of these d. 1.49 x 1025 oxygen molecules e. 1.55 mol of oxygen molecules 2. 1.2 moles of oxygen atoms represent a. 0.4 g b. 0.72 x 1024 atoms c. 1.9 x 101 atoms d. 1.0 x 102 g e. none of these
24. Consider the combustion of hydrogen given below H2(g) + ½Og(g) H2O(g) ΔH =-241.8 kJ/mol → What is the enthalpy change, in kJ, when the reaction is started with 52.5 g of H2 and 52.5 g of O2? A) -793 kJ B) -537 k C) -192 k D) -645 kJ E) 564 kl
2. Determine the ∆H º for the third reaction; is it exothermic ? ClO(g) + O3(g) --> Cl(g) + 2 O2(g) ∆Hº = -29.90 kJ/mol 2 O3(g) --> 3 O2(g) ∆Hº = +24.18 kJ/mol Cl(g) + O3(g) --> ClO(g) + O2(g) ∆Hº = ????