When the reaction shown below is performed using: A + B --> C + D The temperature changes from 25.0 degrees Celsius at the start to 19.0 degrees Celsius at the end of the reaction. a. Is the reaction endothermic or exothermic? b. What is the value of q for the reaction if the mass of the reaction was 54.4 grams ?

Q: 3.| N2(g) + 3CI2(g) → 2NCI3(1) AH°rxn = +460 kJ The reaction is _thermic, heat flows bonds between…

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Q: B2H6(g) + 3 O2(g) → B2O3(s) + 3 H2O(g) ∆H = -2035 kJ How much heat is released when a mixture of…

A: Given : Mass of B2H6 = 6.76 g Mass of O2(g) =1.96 g

Q: The energy diagram shown represents the chemical reaction between solid ammonium chloride and solid…

A: Reaction given 2NH4Cl(s) +Ba(OH)2 ⋅8H2O(s)→2NH3 (aq) +BaCl2 (aq) +10H2O(l) ∆H(reaction) = 54.8 kJ…

Q: For the following reaction: C(s) + O2(g) -> CO2(g) ΔΔH = -94.0 kcal Is the reaction endothermic or…

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Q: How many kilojoules of energy are generated when in 91.4 grams of NO(g) reacts according to the…

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Q: how many grams of Nitrogen Monoxide will be produced?

A: Given :- mass of N2 = 10 g  To calculate :- mass of NO (in g)    molar mass of NO = 30.0 g/mol…

Q: At the end of the neutralization reaction of 0.5 mL nitric acid with 0.28 m 18 mL sodium hydroxide…

A: Given: Volume of nitric acid = 0.5 mL Concentration of sodium hydroxide = 0.28 M Volume of sodium…

Q: the thermo-chemical equations shown below to determine the entha N₂(g) + 3H₂(g)=>2NH3(g) AH = ?…

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Q: Calculate AH for the reaction NH3 (g) + 5 02 (g) → 4 NO (g) + 6 H20 (g). from the following data. N2…

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Q: 2) Calculate AH for the reaction 2 Al (s) + 3 Cl2 (g) → 2 AICI3 (s) from the following data. 2 Al…

A: Need to calculate ∆H of the 2Al(s) + 3Cl2(g) → 2AlCl3(s).

Q: Methane, CH4, reacts with oxygen to produce carbon dioxide, water, and heat. CH4(g) + 2O2(g) .…

A: From the above reaction we can see that when 1 mole of CH4 reacts, ΔH = -890.3 KJ Hence the ΔH of…

Q: Is the following reaction exothermic or endothermic? Choose the correct answer and reasoning. 2 SO3…

A: Ans b ,endothermic  ,because energy was added to the reaction as a reactant . In endothemic…

Q: How many kilojoules of energy are generated when in 91.4 grams of NO(g) reacts according to the…

A: Change in enthalpy of reaction is the difference between the total enthalpy of products and total…

Q: What type of reaction is CH4(g) +2 O2(g) CO2(g) + H2O0 + 890.4 kJ? ectothermic O unbalanced O…

A: The given reaction is CH4(g)+ 2O2(g) → CO2(g) + H2O(l). It is a combustion reaction.

Q: SO₂(g) + Cl₂(g) = SO₂Cl₂(g) AH = -264 kJ K = 34.5 When the reaction is altered, as below, what is…

A: Energy released per unit mole will remain the same but ∆H° overall will be alerted when…

Q: Calculate ΔH (in kJ/mol) for the reaction shown below: ClF(g)+F2(g)→ClF3(g) Use the following…

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Q: When 1 mole of N3(g) reacts with H2(g) to form NH3(g) according to the following equation, 92.2 kJ…

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Q: Calculate the dHo of the decomposition reaction of HI using the values from the table in Appendix 2…

A: standard enthalpy of HI(g) = 26.466KJ/mol standard enthalpy of H2(g) = 0KJ/mol standard enthalpy of…

Q: Sun's energy 6 CO, + 12 H,O C,H,O, + 6 H,0 + 60, ↑ Oxygen Carbon dioxide Water Sugars Water…

A: Note: Since you have posted a question with multiple subparts, we will solve the first three…

Q: When 2 moles of SO2(g) react with O2(g) to form SO3(g) according to the following equation, 198 kJ…

A: Given reaction: 2SO2(g) + O2(g) → 2SO3(g) It is given that when 2 moles of SO2(g) react with O2(g)…

Q: 44. Consider the reaction: C3H8(g) + 5 O2(g) --> 3 CO2(g) + 4 H2O(g), where AH = -531 kcal. Which…

A: The given reaction is  C3H8 (g) + 5 O2 (g) --------------> 3 CO2 (g) + 4 H2O (g)            ΔH =…

Q: Use the References to access important values if needed for this question. The reaction of…

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Q: Calculate the theoretical enthalpy of reaction where NH4NO3 (s)  →  NH41+ (aq) +  NO31- (aq).…

A: The given reaction is: ∆Hf of the reaction is given by: where Σ∆Hf(products) is the summation of…

Q: Based on the following reactions: Rxn A: C{s) + O2(g) → CO2 (g) AHc = -393.5 kJ/mole Rxn B: C8H18()…

A: When one mole of a substance is completely burnt in the presence of oxygen (with all of the…

Q: 16. Use the following decomposition reaction to answer the following questions: 2H,0(g) + heat →…

A: Endothermic reaction is in which energy is given to the reactants. Exothermic reaction in which…

Q: When 2 moles of H2S(g) react with O2(g) to form H2O(l) and SO2(g) according to the following…

A: Given : Amount of heat evolved in the reaction = 1.12 X 103 KJ And moles of H2S reacted = 2 moles

Q: ΔHr for   N2(g) + 3H2(g) 2NH3 (g)  is -92.2 kJ/mol reaction a) What will be the enthalpy change if…

A: Given that: 1 mole of N2 reacts with 3 moles of H2 to give 2 moles of NH3. ∆Hr for th reaction is…

Q: A 75.0 kg woman habitually eats nasi lemak for breakfast. It is known that a serving of nasi lemak…

A: To convert the energy contains of one serving of Nasi lemak given that each serving of Nasi lemak…

Q: The chemical reaction  Fe[SCN]2⇋ Fe+2 +2SCN-  a)is it endothermic or exothermic? b)What would…

A: We have to tell the given reaction is exothermic or endothermic

Q: find the heat of reaction of N2(g) + 3 H2(g) --------> 2 NH3(g)

A: The heat released and absorbed during a reaction by change in bonding is defined as heat of reaction…

Q: When a 0.69-g sample of olive oil is burned in a calorimeter, the heat released increases the…

A: The amount of energy for a particular amount of matter present at specific temperature with specific…

Q: Based on the following reactions: Rxn A: C(s) + O2(g) CO2 (g) AH C = -393.5 kJ/mole Rxn B: C8H18() +…

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Q: 5.44 (a) and (b)

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Q: A)When 1 mole of CO(g) reacts with Cl2(g) to form COCl2(g) according to the following equation, 108…

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Q: From the heats of reaction 2H2(g) + O2(g) ---> 2H2O(g)     DH = -483.6 kJ              3O2(g) --->…

A: The given reactions are: 2H2(g) + O2(g) → 2H2O(g)    ∆H=-483.6 kJ                        ......…

Q: - 2 Al(s) + Fe2O3(s) 2 Fe(s) + Al2O3(s) AH=-848.0 kJ The mass of aluminium oxide produced when -2544…

A: Aluminum metal reacts with iron (III) oxide to form aluminum oxide and iron metal. The equation for…

Q: s the reaction in picture 1 exothermic or endothermic?

A: Given : We have to tell whether the given reaction is exothermic or endothermic.

Q: How many moles of hydrogen is consumed when 288 kJ of energy is released from the complete…

A: From stoichiometric calculations, we will calculate the moles of hydrogen consumed when 288 KJ of…

Q: when a 0.55-g of olive oil is burned in a calorimeter the hear released increases the temperature of…

A: Given: Mass of olive oil burned = 0.55 g. Mass of water = 360 g. Initial temperature of water = 22.7…

Q: Classify each of the following as endothermic or exothermic. A. A beaker feels cold after a…

A: Exothermic reactions are the reactions that releases heat by increasing the temperature of the…

Q: 2. Calculate AH for the reaction 4 NH3 (g) + 5 O2 (g) → 4 NO (g)+6 H2O (g), from the following data…

A: As already mentioned that need help in question number-2 so am going to do question-2…

Q: Be sure to answer all parts. Consider the following balanced thermochemical equation for a reaction…

A: When energy released during the reaction is known as exothermic reaction and when energy required…

Q: What is the AH of the following hypothetical reaction? 2A(s) + B2(g) → 2AB(g) Given: A(s) + B2(g) →…

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Q: A    =   2 B        Δ H = + 24 kcal   Is the above reaction exothermic or endothermic?   Is heat…

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Q: Given these three reactions and their Δ?∘ values reaction 1: C(s)+2H2(g)⟶CH4(g)        Δ?∘1=−74.6…

A: Given three reactions and their ΔHo values :

Q: When 3 moles of Fe2O3(s) react with H2(g) to form Fe3O4(s) and H2O(g) according to the following…

A: The energy difference of the products and reactants is known as the energy change of a reaction.

Q: The energy diagram shown represents the chemical reaction between solid ammonium chloride and solid…

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Q: Consider the reaction of ammonia gas with O2(g) according to the thermochemical equation given…

A: ∆H is an extensive property. It depends on quantity of the substance and Stoichiometry of chemical…

Q: Combustion reactions are exothermic. The heat of reaction for the combustion of cyclopentane, C;H10,…

A: Heat of reaction is defined as difference of energy of product  and energy of Reactant. If heat of…

Q: 4. Using the data in table 6.1 predict the sign and magnitude of AH ° for each of the following…

A: If the value of change in enthalpy is negative then the process is exothermic which means the energy…

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.