Part A one stalk of celery that heats 205 g water from 23.2 °C to 33.7 °C q = kcal • Part B a waffle that heats 4580 g water from 23.6 °C to 61.4 °C q = kcal

Q: The formation of rust (Fe2O3) from solid iron and oxygen gas releases -1.7  103 kJ. 4 Fe(s) + 3…

A: The question is about to calculate the mass of rust formed when 150 kcal are released -

Q: A serving size of six cookies contains 6 g of fat, 23 g of carbohydrates, and 9 g of protein. If…

A: The ability to do work is called energy and people know how to convert energy from one form to…

Q: ow much heat in kcal must be added to 0.79 kg of water at room temperature (20°C) to raise its…

A: We know that Q = m × c × ∆ T m = mass of water  = 0.79 kg c = specific heat of water = 1 K cal / kg…

Q: A 1.3-g sample of rice is placed in a calorimeter. When the sample is burned, 22.00 kJ is given off.…

A: Given: The Heat is given off when rice is placed in the calorimeter = 22.00 kJ The mass of the…

Q: The calorie content of a candy bar is 230. Calories per serving (1 bar). Calculate the specific…

A: The Calorie content of the candy bar is = 230 Calories per bar1 candy bar = 52.7 g1 Calorie = 1000…

Q: Which of the following equations is an exothermic reaction?   a H2 (g) + ½ O2 (g) → H2O (l) ΔH =…

A: Exothermic reaction Reaction in which Energy is released so it is exothermic reaction.

Q: Perform the conversions between energy units. J 558 kJ = kJ 2565 kcal = kcal 8.63 x 106 J =

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Q: C2H4 (g) + H2O (l) → C2H5OH (l) ΔH=? 1.C2H5OH (l) + 3O2 (g) → 2CO2 (g) + 3H2O (l) ΔH = -1367,5 KJ…

A:

Q: The reaction for the combustion of propane is C₂H₂(g) +50₂(g) → 3 CO₂(g) + 4H₂O(1) heat: ΔΗ =…

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

Q: Expressing amounts of energy in different energy units is necessary to solve many chemistry…

A: The question is based on the concept of unit conversions. We need to convert the given quantity into…

Q: Perform the conversions between energy units. 663 kJ=663 kJ=   JJ 2655 kcal=2655 kcal=   kJkJ…

A: Unit conversion of the energy:        1 kJ = 1000 J 1kcal = 4.184 kJ

Q: A teaspoon of the carbohydrate sucrose (common sugar) contains 16 Calories (16 kcal). What is the…

A: Given: As interpreted by the question, we have been given a teaspoon of the carbohydrate sucrose…

Q: Perform the conversions between energy units. 441 kJ= 2715 kcal = J kJ

A: For KJ to J, multiply the energy value by 1000.For KCal to KJ, multiply the energy value by…

Q: To measure the caloric content of a new breakfast bar, you burn a 2.00 g sample in a calibrated bomb…

A: Given : Mass of breakfast bar = 2.00 g                             Heat capacity of calorimeter =…

Q: The specific heat of silicon is 700J/kg/°C, how much energy is needed to raise a 14g of silicon by…

A: 1) To find out the amount of heat required to raise the temperature of 14 g of silicon by 30°C, the…

Q: The combustion of one mole of propane, C3H8, releases 531 kcal. How much heat is released by the…

A:

Q: How many Joules are there in 54.0 kcal? (1 cal = 4.184 J)

A: One calories is equal to 4.184 joule.                1 kcal = 1000 cal.…

Q: 20 g of chocolate was combusted completely in a calorimeter with 100 mL of water inside. The…

A: Given data is Mass of chocolate combusted = 20 g Volume of water  in a calorimeter = 100 mL  The…

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: When NO(g) reacts with O₂(g) according to the following reaction, 13.93 kcal of energy are evolved…

A:

Q: 2 CH3OH) +3 O2(g) → 2 CO2) + 4 H20) + 347 kcal Calculate the amount of heat in kcal & kJ released…

A: Given : The reaction equation is as follows. 2CH3OH(l) + 3O2(g) → 2CO2(g) + 4H2O(l) + 347 kcal Mass…

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: Calculate AH for the reaction NH3 (g) + 5 O2 (g) → 4 NO (g) + 6 H,O (g), from the following data. N2…

A:

Q: Calculate ∆H°f, in kcal/mol for C₂H₂(g) from the reaction 2 C2H2(g) + 5 O2(g) > 4 CO2(g) + 2 H2O(g)…

A:

Q: In winemaking, microorganisms break down the sugar in grapes into ethanol (grain alcohol) and carbon…

A: The molar mass of ethanol = 46 g  2 moles of ethanol , which weights 92.16 g produces 16.6 kcal  of…

Q: A serving size of four cookies contains 7 g of fat, 16 g of carbohydrates, and 5 g of protein. If…

A: A gram of fat has about 8  kilocalories  so 7 gm of fat is equivalent of 8*7=56 kilocalories =…

Q: is 2 NO2(g)   → N2O4(g) + 19 kcal a exothermic or endothermic

A: In simple words,  Endothermic reaction - when heat is absorbed , the reaction is endothermic.…

Q: Perform the conversions between energy units. 791 kJ=                                             J…

A:

Q: A serving size of eight cookies contains 7 g of fat, 17 g of carbohydrates, and 8 g of protein. If…

A:

Q: Calculate AH for the reaction C2 H4 (g) + H2 (g) → C2H6 (g). from the following data. C2H4 (g) + 3…

A:

Q: Perform the conversions between energy units. 633 kJ = 2325 kcal %3D kJ 9.01 x 10 J = kcal

A:

Q: Classify each as exothermic or endothermic AND explain why.   N2O4(g) + 19 kcal →  2 NO2(g)…

A: Exothermic process:- The process which produces energy                                     that…

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

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: For the reaction: 2 C020) + 4 H20w + 347 kcal O 2(g) -> 2 CH30H) +3 0, Calculate the amount of heat…

A: When methanol reacts with oxygen or burns with oxygen releases a lot of energy and gives water and…