A list of the calorie content of foods indicates that an enchilada contains 230. Calories. Express this value in kJ and in J. The Joule (J) is the SI unit of energy. 1 calorie (cal) = 4.184 J; 1 Calorie (Cal) = 1000 cal = 1 kcal ________ kJ _________ J

Q: A high-protein diet contains 63.6 g of carbohydrate, 5.9 g of fat, and 140 g of protein. TABLE 3.7…

A: Given: Amount of carbohydrate=63.6 g Amount of fat=5.9 g  Amount of proteins=140 g  Energy in kCal/g…

Q: The heat of combustion for C2H4 (28.05 g/mol) is -1411 kJ/mol. Calculate how much heat is released…

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Q: 5.50 g of solid sodium hydroxide is dissolved in 175 mL of water. Using a coffee-cup calorimeter,…

A: 4.  Given that,  Amount of solid NaOH dissolved in 175 mL water = 5.50 g Temperature change of water…

Q: Whenever organic matter is decomposed under oxygen-free(anaerobic) conditions, methane is one of the…

A: a) Concept introduction: Combustion is basically the reaction of a substance with oxygen Methane…

Q: A certain oil used in industrial transformers has a density of 1.280 g/mL and a specific heat of…

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Q: Determine the mass of CO2 produced by burning enough of propane to produce 2.00 x 104 kJ of heat. C3…

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Q: which of the following statements best describes what occurs when a bowl of soup is warmed from 20…

A: To answer this question , we would check the heat gain and heat lose.

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

A: Given , 1 cal = 4.184 J 1kcal = 1000 cal

Q: A brick lies perilously close to the edge of the flat roof of a building. The roof edge is 50 ft…

A: Given:Potential energy of brick=560.0 JHeight of roof edge=50 ftHeight of roof edge begins to…

Q: The enthalpy of the solution of ammonium nitrate was determined by coffee cup calorimetry. a.…

A: a. Given, The mass of copper is 10.0g Specific heat capacity of copper is ---0.390J/g.oC Initial…

Q: 100 grams of water is measured to have an initial temperature of 28 degrees Celsius. An unknown…

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Q: 1) Example 6.7 - What is DHrxn/mol Mg for the reaction Mg(s) + 2 HCI(aq)→ MgCl2(aq) + H2(g) if 0.158…

A: the heat of the reaction can be calculated using principle of calorimetry  in calorimeter

Q: Determine the mass of CO2 produced by burning enough of octane to produce 2.00 x 10² kJ of heat. C3…

A: Given- Reaction C8H18(l) + 25/2 O2 (g)  → 8 CO2 (g) + 9 H2O (g) Q = 2.00 x 102 kJ ∆H°rxn = -5074.1…

Q: When 18.8 g KOH is dissolved in 111.5 g of water in a coffee-cup calorimeter, the temperature rises…

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

A: 1) specific heat of silicon = 700 J/kg°C   mass of silicon = 14 g      ∆T = 30°C  2) specific heat…

Q: A student wishes to determine the heat capacity of a coffee-cup calorimeter. After she mixes 107.5 g…

A: Heat capacity of a calorimeter is the amount of heat energy absorbed by the calorimeter per Kelvin…

Q: As gasoline (octane, C8H18) is burned in a car engine the heat released causes the gases H2O and CO2…

A: Given: Work done = 476 J And the amount of heat released to the surroundings = 327 J.

Q: A bomb calorimeter, or a constant volume calorimeter, is a device often used to determine the heat…

A: Formula used :  Qbomb = mH2O CpH2O (T2-T1) + Cbomb (T2-T1)

Q: Find A,U for the combustion of methanol (CH3 OH) to carbon dioxide and liquid water from the…

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Q: For 36-38. An aluminum kettle weighs 1.05 kg. What is the heat capacity of the kettle? * 0.522 J/g°C…

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

A: In this problem, we will discuss about the units of energy: Joule-1 joule is equals to 0.000239006…

Q: A bomb calorimeter, or a constant volume calorimeter, is a device often used to determine the heat…

A: Mass of nonanedioic acid  = 0.8568 g Mass of water = 1386 g Initial temperature = 24.32oC Final…

Q: Calculate the amount of heat, in kJ, needed to raise the temperature of 87.1 g of benzene from 285.0…

A: specific heat capacity is defined as heat required to raise the 1 kilogram body temperature by 1…

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

A: Energy is defined as the ability of a body to do work. The SI unit of energy is the joule. Other…

Q: A metal sample weighing 122.50 grams and at a temperature of 97.2 degrees Celsius was placed in…

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Q: A metal sample weighing 122.50 grams and at a temperature of 97.0 degrees Celsius was placed in…

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Q: A coffee-cup calorimeter contains 70 mL of water with an initial temperature of 24.9°C. An unknown…

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Q: The coffee cup calorimeter was determined to have a heat capacity of 8.5 J/ °C. The initial and…

A: Since heat capacity is given, we need to calculate the change in temperature. And we know  q=C∆T…

Q: Convert 7908 cal to kJ

A: Given: Energy in cal = 7908 cal.

Q: Use the following information to answer the next question NaCI(s) + ½ H20(1)HCI(g) + % Na,O(s) AH =…

A: We'll answer the first question since the exact one wasn't specified. Please submit a new question…

Q: Carbohydrates serve as a vital source of chemical energy to the human body. Carbohydrates are broken…

A: Generally, 1 kcal contains 4.184 kJ.

Q: Convert 475 cal to joules STARTING AMOUNT ADD FACTOR ANSWER RESET *( ) 4.184 1.99 x 106 kJ 0.001 J…

A: Given: 475 cal to joules

Q: Pre-Laboratory Assignment 1. Sam performed a reaction in lab where he mixed a dilute solution of…

A: Exothermic reaction is a reaction where heat (energy) is released in the reaction.

Q: 1.42 (a) and (b)

A: 1 watt = 1 J/s 1 kWh = 1000 W X 3600 sec = 3600000 J

Q: 9. If the accepted value for the heat of combustion for chicken fat is 30,038 kJ/mol calculate the…

A: Answer to sub-parts 9, 10 and 11 The answers to 6, 7 and 8 were found to be correct in accordance…

Q: 1. A 2.15-gram cashew nut is burned. The heat released raises the temperature of a 100.0-gram sample…

A: Hey, since you have asked multiple question, we will solve the first question for you.  If you want…

Q: An economy car uses 1.00gal of gas to go 31miles. What its fuel rating 3 ln km/L?

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Q: Natural gas, or methane, is an important fuel. Combustion of one mole of methane releases 802.3…

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Q: A piece of iron (specific heat, 0.444 J/g•°C) is added to 127.31 grams of water (specific heat,…

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Q: A 96.2 mL sample of 1.00 M NaOH is mixed with 48.1 mL of 100MH 2SO4 Styrofoam coffee cup. the cup is…

A: The balanced chemical equation for the reaction of NaOH and H2SO4 is, H2SO4 + 2NaOH → Na2SO4 + H2O…

Q: Liquid sodium is being considered as an engine coolant. How many grams of liquid sodium (minimum)…

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Q: A packet of soup has the following nutritional information (250 mL of soup =235 kj) How would that…

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Q: An empty coffee-cup calorimeter weighs 10 grams. It is filled with water, whose temperature is 31…

A: Weight of empty coffee cup calorimeter = 10g Weight of coffee cup calorimeter filled with water =…

Q: Original temperature of HCI is 20.6 degrees Celsius, Original temperature of NaOH is 20.6 degrees…

A: Given data, Initial temperature of HCl = 20.6oC Initial temperature of NaOH = 20.6oC Final…

Q: Use the data given below to calculate AH° for the reaction, in units of kJ: A2B2 + B A2B3 Data: AH°…

A: The given data is as follows: A2B2 + B → A2B3                ∆Hrxn°=? 2A2B3 + 11C → 4AC2 + 3B2C…

Q: ΔΗ- kJ

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Q: The "Nutrition Facts" on a label of a 64 fluid ounce container of apple juice states that a serving…

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Q: A silver block, initially at 51.0 °C, is submerged into 100.0 grams of water at 25.3 °C in an…

A: q = m c ∆T q = Heat change in the reaction m = mass c = specific heat Ti = initial temperature Tf =…

Q: Compute for the Q (in kiloJoules) needed to change the temperature of 2.25 m3 of unknown substance…

A: Note : As per our guidelines we are supposed to answer first question .please resubmit the other…