Calculate the kilojoules of heat required to decompose 2.5 moles of baking soda. * 2NaHCO3(s) → Na2CO3(s) + H201) + CO2(g) ΔΗ 129 O A. 105 B. 136 C. 161 O D. 192

Q: Carbon monoxide is produced industrially from the reaction shown below. If producing CO requires…

A: CH4 + H2O -> CO + 3H2 One mole CH4 required 206.11 kJ Weight of H2= 1000 kg = 1000× 1000 gm…

Q: Determine the final temperature when a 25.0 g piece of iron at 85.0 °C is placed into 75.0 grams of…

A: The amount of heat released from iron is absorbed by the water to raise its temperature. Let the…

Q: How many grams of CeHe liquid must decompose according to the following chemical equation to…

A: The given thermochemical equation is: C6H6(l)  -----> 3C2H2(g) ; ∆H = 630 kJ Given the amount of…

Q: How many kJ of heat are released when 80.9 grams of HBr is formed in this reaction? H2 (g) + Br2…

A: Hydrogen reacts with bromine to form hydrogen bromide. The equation for the balanced chemical…

Q: Under certain nonstandard conditions, oxidation by O2(g)O2(g) of 1 mol of SO2(g) to SO3(g) absorbs…

A: Given : 1 mole of SO2 is oxidised to SO3  Hence the reaction can be written as SO2 (g) + 0.5 O2 (g)…

Q: 774.0 kJ of energy are used to melt silly putty. How many grams of silly putty were melted? AHfus =…

A: Given:  Heat used to melt silly putty, ∆H = 774.0 kJheat of fusion, ∆Hfus = 21.39 kJ/g

Q: 4) What is the heat change when 18.6 g of Hydrogen reacts with excess O2 according to the following…

A: If a reaction releases more energy than it absorbs, the reaction is exothermic and enthalpy will be…

Q: In order to produce 980 kJ of heat, how many grams of H2 must burn? H2O) + 250 kJ H2g) + O 0.54 g…

A: 1- First we will determine the moles of H2 gas :  According to the chemical reaction equation,…

Q: Determine the amount of heat (in kJ) associated with the production of  1.40  ×  104  g of  NO2…

A: The heat quantity that is absorbed or released, when any chemical reaction is occurred, isspecified…

Q: Part A Which sample is most likely to undergo the smallest change in temperature upon the absorption…

A: Here option 'c' will be correct option. i.e. 67 g of water sample is the most likely to  undergo the…

Q: 2. A sample of iron weighing 6.50 g (specific heat 0.449 J/g°C) is colled from 25.3°C to -68.7°C.…

A: The question is based on the concept of chemical thermodynamics. we have been given mass of iron…

Q: Calculate ΔHrxn values for the following equations using standard enthalpies of formation (ΔHof)…

A: Consider the given balanced reaction as; CaCl2.2H2O s → Ca2+aq + 2 Cl-aq + 2 H2O l Standard enthalpy…

Q: The generic reaction X2(g) + Y2(g) → 2XY(g) has an enthalpy of -212 kJ. How many moles of XY were…

A: Given, Chemical Reaction : X2(g) + Y2 (g) ---> 2 XY (g)  ∆H = -212 KJ

Q: 32. How much heat (in kJ) is absorbed in the process of making 0.813 mol of CF₄ from the following…

A: The answer to both the questions are given as:

Q: Determine the amount of heat (in kJ) given off when 49.0  g of ammonia (NH 3) are produced according…

A: Thermodynamic is the branch of chemistry that mainly deals with the heat transfer between system and…

Q: When hydrogen and oxygen are burned to produce water, heat is produced at the rate of 58 kcal/mole…

A: Given, 1 mol H2O = 6.022 ×1023 molecules  Heat produced = 58 Kcal/mol

Q: The heats of combustion of carbon, in the forms of graphite and diamond are shown below. C (gr) + O2…

A: The given problem relates to Hess's law, which states that the amount of heat evolved or absorbed in…

Q: What quantity of heat (in kJ) would need to be removed to cool 121.1 g of water from 25.60°C to…

A: Amount of heat need to be removed to be cool means heat energy required to decrease the temperature.…

Q: a) Write the balanced equation for the formation reaction of carbon monoxide (CO).   (b) Calculate…

A:

Q: How many grams of ethylene (C2H4) would have to be burned to produce 450 kJ of heat? C2H4(g) +…

A: Given :-  C2H4(g) + 3O2(g) →2CO2(g) + H2O(l)  ∆H°rxn = -1411 kJ/mol  To calculate :- amount of C2H4…

Q: Section 7: Heat 1. When ice melts, describe what happens to the energy of the air around it. 2.…

A: Heat absorption depends on heat capacity of substance.

Q: Given the thermochemical equations:  2NaN3 → 2Na + 3N2         ∆H = +42.7 kJ  How many grams of…

A:

Q: The heat of formation of Fe2O3(s) is 826.0 kJ/mol. Calculate the heat of the reaction when a 43.20 g…

A: Given,Heat of formation of Fe2O3 = 826.0 kJ/molMass of iron, Fe = 43.20 gMoles of Fe can be…

Q: For this question, you are trying to determine which beaker will have more heat absorbed and why.…

A: Answer:- This question is answered by using the simple concept of calculation of heat absorbed by…

Q: 1. Why is energy needed to boil water? 2. When water is heated, the temperature eventually reaches a…

A:

Q: The temperature of a 33.7 g sample of metal increases by 27.2°C after absorbing 201.7 J of heat.…

A: Interpretation: The temperature of a 33.7 g sample of metal increases by 27.2°C after absorbing…

Q: How much heat would have to be absorbed to raise the temperature of a 500-g iron bar from 25.0°C tp…

A:

Q: How much heat is generated from burning 3 moles of methane.

A: The combustion reaction of methane will produce carbon dioxide and water as per the reaction CH4 (g)…

Q: 1

A: The specific heat capacity for a given chemical substance or a solution refers to the amount of the…

Q: Consider the chemical reaction below: Zn + 2 HCI ZnCl2 + H2 where AHrn= -249270J Select the…

A: The balanced reaction taking place is given as, => Zn + 2 HCl -------> ZnCl2 + H2…

Q: how much heat will be given off when 18.5g of C2H4 is burned in oxygen form CO2(g) and H2O(g) for…

A: The combustion enthalpy of C2H2 of 18.5 g can be calculate with the help given stoichiometric…

Q: How many kilojoules of heat are absorbed when 24.0 g CH4(g) is produced at constant pressure? (CH4:…

A: 2CH3OH(g) --->2CH4(g) + O2(g) ∆H =+252.8 kJ Mass of CH4 = 24.0 g Molar mass of CH4 = 16.04 g/mol…

Q: What mass of O2 in grams can be produced when 250.0 kJ of heat was supplied? (MM O2 = 32.00 g/mol)…

A:

Q: 2

A: Thermodynamic is the branch of chemistry that mainly deals with the heat transfer between system and…

Q: How much heat (in kJ) is absorbed in the process of making 0.755 mol of CF₄ from the following…

A: Chemical reaction :-       C (s)   +  2 F2 (g)   --->   CF4 (g)  reaction is balanced.   For…

Q: i don't know how to start this. we are supposed to get the heat of the reaction

A: Given

Q: 1. Cite at least three processes or reactions that require energy. 2. Cite at least three processes…

A: NOTE

Q: An ice cube, a cup of warm soup, and a penny are put into closed container. What happens? 0.…

A: Ice cube will be at low temperature, approximately 0˚C. Penny will be at room temperature and warm…

Q: A reaction is allowed to take place in an insulated container containing 100 mL of water. If the…

A: Changes in energy take place during chemical processes. In chemical reactions, energy is absorbed…

Q: 1. Write the balanced chemical equation for creating the compound from CO2(3) and H20(1). 2. Write…

A: " Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: How much heat is required to raise the temperature of 175 g of aluminum from 21.0 to 145  oC? The…

A: We will use the formula Q = mc Delta T where Q is the heat transfer when temperature  is increased…

Q: Be sure to answer all parts. A mercury mirror forms inside a test tube as a result of the thermal…

A:

Q: Consider the decomposition of liquid hydrogen peroxide (H2O2) to form water and oxygen.a. What is…

A: a) The heat of formation for hydrogen peroxide is ∆Hf0 = -187.34 kJ/mol (at 298 K)

Q: heat change of the reaction Al2Cl6(s) + 6 Na(s) ⎯→ 2Al(s) + 6 NaCl(s) is –256.2 kcal.  The heat of…

A: Given, □Hrxn = -256.2 kcal □Hf(NaCl) = -98.3 kcal □Hf(Al) = Hf(Na) = 0 kcal ( in standard state…

Q: What quantity of heat (in kJ) is absorbed in the process of making 0.889 mol of CF₄ from the…

A:

Q: How much heat is released during the combustion of 7.50 g of methane (molar mass = 16.0 g/mol)?

A: Standard combustion enthalpy of methane = -890.8 kJ/mol 16g of methane release the heat = 890.8 kJ…

Q: The heat of dissolution of a solid substance was determined using an insulated calorimeter…

A: Given: Weight of water = 150 g Initial temperature = 27.4°C Final temperature = 32.8°C Specific heat…

Q: How many grams of C,H liquid must decompose according to the following chemical equation to transfer…

A:

Q: How many calories are required to change the temperature of 25.5 g of iron from 22.5 oC to 83.2 oC?…

A: Amount of heat energy needed to raise the temperature of body by 1°c