Calculate AH for the reaction
2 KCIO: (s) → 2 KCl (s) + 3 O2 (g)
ΔH°r of KCIO3 (s) = -397.7 kJ/mol ΔH°r of KCI (s) = -436.5 kJ/mol
4. If NaHe ()+ Oz (g) Na (g)+ 2 HO (0) Ha (g) +% O (g) H:O (1) Hz (g)+ O2 (g) H2O: () Find AH for N He ()+2 HzO2 (I) N: (g) +4 H2O () AH 622 2 k/mol AH-285 8 kJ/mol AH-187 8 kJ/mol 5. Using standard heats of formation, calculate AH for 4 FeO (s)+ O2 (g) 2 Fe:Os (s) -272.0 kJ/mol AH'r of FeO (s) AH'r of FeaOs (s) = -825.5 kJ/mol 6. Using standard...
When heated, KClO3 decomposes into KCl and O2 When heated, KCIO, decomposes into KCl and 0, 2 KCIO, — 2 KCI + 30, If this reaction produced 90.5 g KCI, how many grams of O, were produced? mass: go,
Question 4 Given the decomposition reaction of KCIO3(s), 2 KCIO3(s) 2 KCl(s) + 3 O2(g) If 46.5 L of oxygen gas (O2) are produced at 208 °C and 760 torr, answer all three parts below. 1) The number of moles of O2(g) produced is Select 1 (Select) 2) The number of moles of KCIO3(s) required 895 mol nt of O2(g) as 2070 mol stated in the problem is [Select 1 2.72 mol 1.18 mol 2) The grams of KCIO3(s) required...
Question 15 of 21 How many moles of KCIO, must be reacted according to the following balanced chemical reaction to transfer -34.2 kJ of heat? 2 KCIO3(s) → 2 KCl(s) + 3 O2(g) AH = -89.4 kJ MOUNT
How many grams of KCIO, are needed to form 24.4 g of O,? 2 KCIO,(s) 2 KCI(s) + 30,(g) Step 1: Show the strategy for solving this problem. grams 0, grams KCIO, Answer Bank moles KCI grams KCIO, grams O2 moles 0 grams KCI moles KCIO, Step 2: Show the conversions required to solve this problem and calculate the grams of KCIO, 24.4 g 0, g KCIO, Answer Bank 122.55 g KCIO, Imole KCIO, 2 moles KCIO, 32.00 g 02...
10. Calculate the heat for the decomposition of 15.2 g KCIO, to form KCl and O. 2KCIO:(s) - 2KCl(s) + 302(g) AH -- 89.4 kJ Molar Mass/g.mol-' (A) + 11.1 kJ KCIO 122.55 (B) + 5.54 kJ (C) - 5.54 kJ (D) -11.1 kJ (E) - 679 kJ
Question 4 1 pts Given the decomposition reaction of KClO3(s), 2 KCIO3(s) 2 KCl(s) + 3 O2(8) If 19.6 L of oxygen gas (O2) are produced at 198 °C and 760 torr, answer all three parts below. 1) The number of moles of O2(g) produced → [Select ] 1.21 mol 385 mol 2) The number of moles of KCIO3(s) require 0.507 mol 917 mol problem is Select] 2(g) as stated in the 2) The grams of KCIO3(s) required to produced...
4. Using Hess's Law, calculate the enthalpy of formation of potassium chlorate: K (s) + Cl2 (g) + 3/2 02 (g) →KCIO: (s) AH = ? kJ Based on the enthalpy changes for the following reactions: 2 K (8) + Cl2 (g) → 2 KCI (3) AH - 874.0 kJ KCIO: (s) + 3 Mg (8) ► KCl (s) + 3 Mg0 (8) AHxx. - 1852.0 kJ MgO (3) ► Mg (s) + O2(g) AHan = +602.0 kJ
When heated, kCLO3 decomposes into KCL and O2. 2KCLO3 →2 KCI + 302 If this reaction produced 51.3 g KCI, how many grams of O2 were produced? When heated, KCIO, decomposes into KCl and 0,- 2KCIO, — 2 KCI +30, If this reaction produced 51.3 g KCl, how many grams of O, were produced? mass: mass: [ 80,
5. Using standard heats of formation, calculate AH for 4 FeO (s) + O2(g) → 2 Fe2O3 (s) AH1 of FeO (s) = -272.0 kJ/mol AHºf of Fe2O3 (s) = -825.5 kJ/mol 3. Given 3 C (s) + 4 H2(g) → C3H8 (9) AH = -103.85 kJ/mol C(s) + O2(g) + CO2(g) AH = -393.5 kJ/mol H2 (g) + 12 O2(g) → H2O (1) AH = -285.8 kJ/mol find AH for C3H8 (g) + 5 O2(g) → 3 CO2 (g)...