Calculate the energy in kJ required to raise the temperature of 5 kg ofaluminium from 20 °C to 150 °C. Take the specific heat capacity of aluminiumas 0.9 J/g°C

Q: The standard enthalpy change for this reaction is -36.3 kJ/mol at 298 K. 1/2 H2(g) + 1/2…

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Q: calculate the molar heat capacity of a mercury metal with specific heat capacity of 0.140 j/g0c.

A: Molar heat capacity is the amount of heat required to increase the temperature of one mole…

Q: Acetylene, C2H2, is used in welding torches. It releases a lot of energy when burned in oxygen. The…

A: heat of combustion is heat produced  when 1 mole of substance is burned in presence of oxygen

Q: Using the table of standard formation enthalpies that you'll find under the ALEKS Data tab,…

A: The standard reaction enthalpy of a reaction is given by   ∆Hrxn°=∑∆H° of the products -∑∆H° of the…

Q: Suppose that the reaction of 1.326 moles consumes 25.27 kJ of heat. What is the molar enthalpy of…

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Q: (a) Elemental boron reacts with fluorine to form BF3, a gas. Write a balanced chemical equation for…

A: (a) Elemental boron react with fluorine to form BF3 , which is a gas.  The reaction equation is ,…

Q: In a constant-pressure calorimeter, 60.0 mL of 0.320 M Ba(OH), was added to 60.0 mL of 0.640 M HCI.…

A: In the given reaction both reactants are present in equal moles. Calculate the moles of water,

Q: A sample of a hydrocarbon is completely combusted in presence in O2(g) to produce 21.83 g carbon…

A: Given:Mass of carbon dioxide=21.83 gMass of water=4.47 gHeat=311 KJa). To find the mass of…

Q: Water gas, a mixture of carbon monoxide and hydrogen, is produced by treating carbon (in the form of…

A: Given :  Mass of carbon = 5.35 kg  Since , 1 kg = 1000 gm  => Mass of carbon = 5350 gm  Also,…

Q: The enthalpy change for the formation of 1 mole of CH, from its elements in their standard states is…

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Q: 10.5 g of solid ammonium nitrate are dissolved into a 100.0 g sample of water. The standard enthalpy…

A: Ammonium nitrate is a solid salt it can dissolve in the water .then it can ionise as ions  and AC as…

Q: When a sample of Mg is combusted in a bomb calorimeter, 25.4 kJ of energy as heat is evolved. The…

A: Assuming the final temperature of water and bomb calorimeter in equilibrium is T. Hence the change…

Q: Sand is converted to pure silicon in a three step process. The third step is   SiCl4(g) + 2Mg(s) →…

A: Given:SiCl4(g)  + 2Mg(s) → 2MgCl(s)  + Si(s)        ΔH  = –625.6 kJ

Q: Gaseous SO2Cl2 reacts with liquid water to form hydrogen chloride gas and liquid sulfuric acid.…

A: Given: Gaseous SO2Cl2 reacts with liquid water to form hydrogen chloride gas and liquid sulfuric…

Q: When 1.23g C6H6(l) are burned, 51.5KJ of heat are released.  Calculate the enthalpy for this…

A: Heat of formation of the compound can be calculated from the reaction and enthalpy of the reaction .…

Q: Given the following two reactions and their enthalpy changes,             2 ClO2 (g)   -->   Cl2…

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Q: Given the standard enthalpy changes for the following two reactions: (1) 2Pb(s) + O₂(g) → 2PbO(s)…

A: Recall the given reactions,                          1 2 Pb s  +  O2 g  →  2 PbO s…

Q: The specific heat capacity of silver is 0.24 J/°C·g. Calculate the energy required to raise…

A: Molar heat capacity of particular chemical compound is the amount of energy that required adding in…

Q: 19.  How much will the temperature of a cup (180 g) of coffee at 95 °C be reduced when a 45 g…

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Q: Given the enthalpy of formation of water is -285.83 kJ/mol, the enthalpy of formation of copper…

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Q: A common technique for forming metal electrodes on electronic devices is evaporation in a vacuum. In…

A: Given Data: The enthalpy of vaporization (ΔHvap) for gold = 310.9 kJ/mol given mass of  liquid gold…

Q: Methanol can be synthesized from graphite according to the following reaction, calculate the…

A: The thermochemical equations can be treated as algebraic equation which can be added,  subtracted,…

Q: Write a balanced equation for the formation of CO2(g) from C(s) and O2(g). Calculate the enthalpy…

A: Basic concepts:  Balanced chemical equation: Balanced chemical equation may be stated as the number…

Q: During an experiment, 25 g of 0.32 M Ca(NO3)2 at 42°C is added to 103 g of 0.82 M HNO3 at 37°C in a…

A: 25 g of 0.32 M Ca(NO3)2 at 42◦ C are mixed with 103 g of 0.82 M HNO3 at 37◦ C . The increase in…

Q: When 10.00 grams of cesium bromate is dissolved in 42.0 grams of water initially at a temperature of…

A: Given - Mass of CsBrO3 = 10.00 g Mass of water = 42.0 g Initial temperature = 25.00 ºC Final…

Q: hot lump of 25.4 g of aluminum at an initial temperature of 83.0 °C is placed in 50.0 mL H2O…

A: This concept is based on principle of calorimetry in this concept heat given by system and heat lose…

Q: Each year, residential homes in the United States use more than 1.05×1014 L of natural gas, which is…

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Q: When HCl(aq) and NaOH(aq) are mixed in a beaker, the beaker feels warm to the touch. What is known…

A: “Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: If 50.0 g H2O at 13.6 °C is combined with 244 g H2O at 93.7 °C, what is the final temperature of the…

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Q: Measurements show that the energy of a mixture of gaseous reactants decreases by 178. kJ during a…

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Q: Using the equations 2 Fe (s) + 3 CI, (g) → 2 FeCl, (s) AH° = -800.0 kJ/mol Si(s) + 2 CI, (g) → SICI,…

A: The value of ∆H of a thermochemical equation changes with the changes made in chemical equation  If…

Q: The combustion of 0.1559 g benzoic acid increases the temperature of a bomb calorimeter by 2.52°C.…

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Q: As an alternative to combustion, coal gas can undergo a process called methanation.  3 H2(g)  +…

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Q: 500.0 mL of 0.100 mol·L HCl(aq) was added to a high quality insulated calorimeter containing 500.0…

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Q: A student dissolves 13.1 g of lithium chloride (LİCI) in 300. g of water in a well-insulated open…

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Q: Given the standard enthalpy changes for the following two reactions: (1) 2Ni(s) + O2(g)–→2N¡O(s) AH°…

A: According to Hess's law change of enthalpy in a chemical reaction is same regardless of whether the…

Q: Eheat

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Q: hot lump of 36.1 g of aluminum at an initial temperature of 51.1 °C is placed in 50.0 mL H2O…

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