Concept explainers
(a)
Interpretation : The moles of H2O produced from the complete reaction of 2.50 moles of C4H10 should be determined.
Concept Introduction : A balance chemical equation provides complete information about the reactant involves in the reaction and also about the product molecules formed during the reaction. The mole concept is used to calculate moles of reactant and product which can convert to grams with the use of molar mass. The percent yield of any reaction can be determined with the help of;
(b)
Interpretation : The mass of O2 needed to react completely with of 22.5 g of C4H10 should be determined.
Concept Introduction : A balance chemical equation provides complete information about the reactant involves in the reaction and also about the product molecules formed during the reaction. The mole concept is used to calculate moles of reactant and product which can convert to grams with the use of molar mass. The percent yield of any reaction can be determined with the help of;
(c)
Interpretation : The mass of CO2 produced from the complete reaction of 55.0 g of C4H10 should be determined..
Concept Introduction : A balance chemical equation provides complete information about the reactant involves in the reaction and also about the product molecules formed during the reaction. The mole concept is used to calculate moles of reactant and product which can convert to grams with the use of molar mass.The percent yield of any reaction can be determined with the help of;
(d)
Interpretation : The percent yield of CO2 should be determined.
Concept Introduction : A balance chemical equation provides complete information about the reactant involves in the reaction and also about the product molecules formed during the reaction. The mole concept is used to calculate moles of reactant and product which can convert to grams with the use of molar mass.The percent yield of any reaction can be determined with the help of;
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Basic Chemistry
- 2. 13.9 g of ammonium nitrate is dissolved in a total volume of 225 mL in a coffee cup calorimeter. If the initial temperature of the water is 27.0 °C, what will the final temperature of the solution be if the heat of solution of ammonium nitrate is 25.7 kJ/mol? Density of the solution is 1.02 g/mL, the specific heat is approximately 4.17 J/g.ºC, and the molar mass of ammonium nitrate is 80.043 g/mol.arrow_forward1N2 + 3H2 -----> 2NH3 Diatomic nitrogen has a triple bond. (946) Diatomic hydrogen hs a single bond. (436) The three bonds in ammonia are single bonds. (390) The bond energies are given. Determine the formula to find the heat of reaction. a. (1)(+946) + (3)(+436)+(2)(-390) b. (3)(+946) + (3)(+436)+(3)(-390) c. (1)(-946) + (3)(-436)+(2)(+390) d. (1)(-946) + (1)(-436)+(3)(+390) e. (3)(-946) + (3)(-436)+(3)(+390)arrow_forwardPractice 9.5 How many grams of chromium(III) chloride are required to produce 75.0 g of silver chloride? CrCl, + 3 AgNO, Cr(NO,), + 3 AgCl Practice 9.6 What mass of water is produced by the complete combustion of 225.0 g of butane (C,H10)? 2 C,Hj0 + 13 0, 8 CO, + 10 H,Oarrow_forward
- According to the given reactions, which of the following is not exothermic? SO2(g) – S(s) + 02(g) SO3(g) – S(s) + 3/2 O2(g) AH = +195 kJ/mol AH = +199 kJ/mol SO3(e) – SO2(g) + 1/2 O2(g) OA. 2 S(s) + 2 02(g) –→2 SO2(g) В. 2 S(s) + 5/2 02(g) – SO2(g) + SO3(g) 2502(g) – 25(s) + 202(g) 2 S(s) + 3 02(g) –→2 SO3(g) OE.arrow_forward33.9 Given the following two reactions and their enthalpy changes, 2 ClO2 (g) --> Cl2 (g) + 2 O2 (g) Delta H = – 204 kJ 2 TiCl4 (l) + 2 O2 (g) --> 2 TiO2 (s) + 4 Cl2 Delta H = – 139.8 kJ What is the value of the enthalpy change for the reaction that is the sum of these two reactions? 2 ClO2 (g) + 2 TiCl4 (l) --> 2 TiO2 (s) + 5 Cl2 Delta H = ? Select one: a. – 64 kJ b. – 344 kJ c. 64.2 kJ d. 64 kJ e. 344 kJ f. – 204 kJ g. none of thesearrow_forwardJania.20 Chapter 3 3.100 When 1.0 9 of gasoline burns, it releases gasoline 0.749/ML SI (3.4.3.6) A) HOw many megajoules arc released srs 1.0 gai ot gasoline burns? Whenarrow_forward
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- Combustion reactions involve reacting a substance with oxygen. When compounds containing carbon and hydrogen are combusted, carbon dioxide and water are the products. Using the enthalpies of combustion for C4H4 (– 2341 kJ/mol), C4H3 (- 2755 kJ/mol), and H2 (- 286 kJ/mol), calculate AH for the reaction. САНа (9) + 2 Нэ(9) —> C4H8 (9) ΔΗ kJarrow_forward11. A car has been fitted with an internal combustion engine that uses ethane as a fuel, which undergoes the following reaction when combusted: 2C2H6(g) + 702(g) → 4CO2(g) + 6H2O(g). Ethane (C2H6) has a molecular weight of 30.1 g/mol and a heat of reaction of -2,855.4 kJ/mol at 25°C. What is the AS° for this reaction at 25°C?arrow_forward(Q24) What is the density (in g/L) of sulfur dioxide gas at a pressure of 873 torr and a temperature of 69.0 °C? (3 sf)arrow_forward
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