ellular respiration is a process that produces energy for the cell and is about 40% efficient. If 1200 joules of energy are used during cellular respiration, how uch of this energy will be lost as heat? 1160 joules 1170 joules 720 joules 480 joules

Q: etermine the amount of heat (in kJ) given off when 1.86 x 10ª g of NOz are produced ccording to the…

A: Given, Mass of NO2 = 1.86 x 104 g  ∆H = -114.6 KJ/mol Molar mass of N = 14 g/mol Molar Mass of O =…

Q: If the mass of a truck is tripled-for example, when it is loaded-by what factor does the kinetic…

A: The mass of the truck is tripled then the kinetic energy will be, From the equation, KE=12mv2where,…

Q: When 1 mole of H2S(g) reacts with H2O(l) to form H2(g) and SO2(g) according to the following…

A: Exothermic reactions are those reactions in which heat energy is released and have negative value of…

Q: How much would the temperature of 295 g of water increase if 17.4 kJ of heat were added? (the…

A:

Q: How much heat, in kJ, is produced by the amount of octane needed to drive 619 kilometers in a car…

A: Combustion reaction: 2C8H18(l) + 25O2(g) → 16CO2(g) + 18 H2O(l)  Energy released on combustion of 2…

Q: A chemical reaction occurs and 64.7 cal is transferred to the system. How many joules is this? is…

A: We have to predict nature of reaction and heat in joules.

Q: Based on the following equation what is the heat of formation, AHf", for H2O(1) * 2 H,(g) + 0,(g) –…

A: Enthalpy of formation is the change of enthalpy for the formation of 1 mole of a compound from it's…

Q: 4.33g sample of an unknown salt (MM=116.83g/mol) is dissolved in 150.00g water coffee cup…

A:

Q: The following thermochemical equation is for the reaction of nitrogen(g) with hydrogen(g) to form…

A:

Q: The reaction of hydrogen and oxygen gases produces 18.0 g of water and releases 68.2 kcal of heat.…

A: Endothermic reactions can be defined as the reaction which involves the intake of heat while…

Q: How much heat is involved when 68.0 g of N2 are reacted in the reaction:
2N2(g) + 5O2(g) + 2H2O(l) →…

A: Given, the chemical reaction,2N2(g)+5O2(g)+2H2O(l)→4HNO3(aq)   ; ∆H =-256 kJamount of heat evolved…

Q: solve the attached

A: First, calculate the number of moles of N2: No of moles = Mass/Molar mass = 68.0g/(28.0gmol-1) =…

Q: How much heat will be released (AH) if 0.5387 mol of NH3 are mixed with 0.20 mol of O2 in the…

A:

Q: How many grams of ammonium chloride were formed if the reaction released 518 kJ of heat

A: Given :-  N2(g) + 4H2(g) + Cl2(g) → 2NH4Cl                                               ∆Hrxn =…

Q: When 1 mole of CH4(g) reacts with H2O(g) to form H2(g) and CO(g) according to the following…

A: Since,  1 mole of CH4(g) reacts with H2O(g) to form H2(g) and CO(g) 206 kJ of energy are absorbed.…

Q: If the energy change for a system is equal to the mass of the substance x the change in temperature…

A: Specific heat is the amount of heat needed for one gram of a substance to increase its temperature…

Q: An exothermic reaction causes the surroundings to: A. become basic B. decrease in temperature C.…

A:

Q: What is the specific heat of 54.8 g of a substance that releases 445 Joules of heat upon cooling…

A: q = mc∆T  q is the amount of heat energy released m is the mass of substance  c is the specific heat…

Q: A 1445 kg car is traveling down the road at 96.6 km/h. While traveling at this rate of speed, what…

A: Given : Mass of car = 1445 kg Speed of car = 96.6 km/hr  To calculate :- Kinetic energy (in kJ)

Q: A 1489 kg1489 kg car is traveling down the road at 100.2 km/h.100.2 km/h. While traveling at this…

A: Mass = m= 1489kg. Velocity v = 100.2km/h = 100.2×5/18 = 27.7m/s (1km/h =5/18 m/s).

Q: How much heat will be released (AH) if 0.5263 mol of NH3 are mixed with O.20 mol of O2 in the…

A: Interpretation: The amount of heat released in the following reaction is to be determined. Reaction:…

Q: The heat of reaction for the combustion of hexane, C6H14, is 995.0 kcal/mol. What is the heat of…

A: The heat change in a particular reaction is known as enthalpy change (∆H). The endothermic reactions…

Q: 3. one mole of 15% sulfuric acid is neutralized by 10% sodium hydroxide according to the following…

A: Here we have to determine the amount of heat released in the neutralisaton of 1mole of 15% sulphuric…

Q: Consider the reaction: C3Hg(g) +5 02(9) 3 CO(9) + 4 H20(g), where AH= -531 kcal/mol. How much heat…

A:

Q: Carbon monoxide reacts with oxygen to form carbon dioxide by the following reaction: 2 CO(g) + O2(g)…

A: Carbon monoxide reacts with oxygen to form carbon dioxide by the following reaction:2 CO(g) + O2(g)…

Q: when butane (C4H10) in a cigarette lighter undergoes combustion, it evolves 2880 kJ per mole of…

A: When butane (C4H10) in a cigarette lighter undergoes combustion, it evolves 2880 kJ per mole of…

Q: The specific heat of ethylene glycol is 2.43 J/g·K. If x kJ of heat is needed to raise the…

A: Given that: Mass of ethlene glycol(m)  = 35g T1 = 15.2°C T2 = 60.5°C  Specific heat (C) = 2.43 J/g.K…

Q: What is the specific heat of a 72.01 g piece of an unknown metal that exhibits a 45.2°C temperature…

A: Given data is  mass of sample = 72.01 g Temperature = 45.2 oC Heat absorbed = 1870 J Formula used…

Q: A 1467 kg1467 kg car is traveling down the road at 81.0 km/h.81.0 km/h. While traveling at this rate…

A:

Q: How much energy (in Calories, ie. kcal) was produced by burning the Goldfish?  (Specific Heat of…

A: Mass of water = 100.116 g Change in temp. = 5.1°C = 5.1 K Specific Heat Capacity of water = 4.184…

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

A: Given: The heat of combustion of butane, C4H10 is 687.8 kcal/mol.

Q: Hydrogen sulfide, H2 S, is produced during decomposition of organic matter. When 0.4300 mol H2S…

A:

Q: In the following reaction, how many moles of CH₃OH are required to produce -6.696 × 10³ kJ of heat?…

A: The reaction given is   2 CH₃OH (l) + 3 O₂ (g) → 2 CO₂ (g) + 4 H₂O(g)…

Q: Given that 158.05 g of solution increased in temperature by 4.82 "C. how much heat was gained by the…

A: Given that: Mass of solution=158.05grams Change in temperature=4.82°C Specific heat of…

Q: A mercury mirror forms inside a test tube by the thermal decomposition of mercury(II) oxide. 2…

A: a. Given:

Q: . Vanillin is a natural constituent of vanilla that is also manufactured for use in artificial…

A: Given that: Mass of vanillin (m) = 1.013 g Specific heat capacity = 4.90 kJ/°C Temperature change…

Q: The reaction for the combustion of propane is   C3H8(g)+5O2(g)⟶3CO2(g)+4H2O(l)…

A: Given combustion reaction;  C3H8(g) + 5O2(g) ---> 3CO2(g) + 4H2O(l)  delta(H) = -526.3 kcal/mole…

Q: Write out the mathematical equation used for the heat of neutralization for an acid base reaction…

A:

Q: a. Hydrogen cyanide is used in the manufacture of clear plastics such as Lucite and Plexiglas. It is…

A: a. The given balanced chemical reaction is  2NH3(g) + 3O2(g) +2CH4(g) →2HCN(g)+6H2O(g) Given data…

Q: In the following reaction, how many moles of CH3OH are required to produce -2191 kJ of heat? 2 CH3OH…

A: The balanced reaction taking place is given as,

Q: When 130. mL of 0.198 M NaCl(aq) and 130. mL of 0.198 M AgNO3(aq), both at 21.8°C, are mixed in a…

A: When the system release energy then the process is known as exothermic. When the system absorbs…

Q: The heat of reaction for the combustion of benzene (C6H6) is –3909.9 kJ. 2 C6H6 + 15 O2 → 12 CO2 + 6…

A: By stoichiometry of reaction:   Heat change for burning of 156 g of benzene = -3909.9 kJ So, heat…

Q: If 2.36 g of calcium dichloride dissolves in 84.00 g of water in a kalorimeter at a constant…

A: 2.36 g of calcium dichloride dissolves in 84.00 g of water Mass of solution = mass of CaCl2 + mass…

Q: Mass of can (g) 12.67 Mass of can and water (g) 108.88 Initial mass of food sample (g) 1.91 Final…

A: The heat gain by water is calculated using formula : q = m × C × dT  where, m = mass of water  C =…

Q: Suppose you burn a 2.4 g sample of potato chips. You use the heat given off from that process to…

A:

Q: Vanillin is a natural constituent of vanilla that is also manufactured for use in artificial vanilla…

A: Given the mass of vanillin taken for combustion = 1.013 g Since the temperature of the calorimeter…

Q: 2. How many grams of N2 are needed to make -550.0 kJ? N2g) + 3H2g) 2NH3(g) AH = -92.6 kJ %3D

A:

Q: Using the following equation for the combustion of octane, calculate the heat associated with the…

A:

Q: Combustion reactions are exothermic. The heat of reaction for the combustion of hexane, C,H14, is…

A: Combustion reaction is a type of chemical reaction in which a given hydrocarbon is burnt in the…

Q: When 7.474 g of NaCl is dissolved in 120 grams of water at 22 oC in a coffee-cup calorimeter, 500J…

A: we are given that NaCl dissolves in water heat absorbed by the solution=500J so heat released by the…