A0.0419-mol sample of a nutrient substance, with a formula weight of 114 g/mol, is burned in a bomb calorimeter containing 2.68 x 10 g H,0. Given that the fuel value is 3.86 x 10-1 in nutritional Cal when the temperature of the water is increased by 6.88°C, calculate the fuel value in kJ. Enter your answer in scientific notation. Be sure to answer all parts. x 10 (select) kJ

Q: In the laboratory a student uses a "coffee cup" calorimeter to determine the specific heat of a…

A:

Q: 2.14  grams of a mystery substance of food with a molar mass of  167.85  g/mol is burned in a bomb…

A: First we have to fine moles of the food substance, then divide this mole to amount of energy (in kJ)…

Q: If AG for a reaction is -3.8 kcal/mol, and Q is 1.3 x10°, what is the value of Keg for this reaction…

A:

Q: Thermometer When a solid dissolves in water, heat may be evolved or absorbed. The heat of…

A: The heat released in the reaction is equal to the sum of the heat absorbed by the solution and the…

Q: What is the net reaction?

A: This problem is based on Hess's law (Thermochemistry)

Q: When NH3(g) reacts with N20(g) according to the following reaction, 107.3 kcal of energy are evolved…

A:

Q: Potential energy at top Ep = m-g-h %3D Ep = %3D 5 kg 9.4 m/s2 5 m Ep = 0 J

A: Potential Energy (Ep ) The formula to calculate the potential energy is ; Ep = m × g × h Where ; m =…

Q: A certain chemical reaction releases 14.0/kJg of heat for each gram of reactant consumed. How can…

A: Given heat energy released per gram of reactant is 14.0 kJ.  Quantity of total reactant is given as…

Q: A constant pressure (or coffee cup calorimeter) contains 125g of water at a temperature of 24.2°C.…

A: Given , mass of water = 125 ginitial temperature, Ti=24.2°Cmass of KBr added = 10.5 gFinal…

Q: When (3.4100x10^2) Joules of heat are added to a sample, the temperature increases from…

A:

Q: How much heat is released when a mixture containing 10.00 g NH3 and 20.00 g O₂ reacts according to…

A:

Q: A metal object with the mass of 24.1 g is heated to 97.0 *C and then transferred to an insulated…

A: Given: Specific heat of water = 4.18 J/g. oC Mass of metal = 24.1 g Mass of water = 86.9 g. Initial…

Q: 5.04 x 10-3 mole of a compound is added to 41.0 g of water in a styrofoam cup and stirred until it…

A: Given,Mass of water = 41.0g.Temperature change = 23.4600C – 23.4200C…

Q: d. Calculate the amount of heat released w to the following chemical equation (5 m

A:

Q: TUTOR Coffee Cup Calorimetry: Specific Heat I In the laboratory a "coffee cup" calorimeter, or…

A:

Q: The molar heat of solution (AH,0ln) of sodium hydroxide is -445.1 kJ/mol. In a certain experiment,…

A: Molar heat of solution is defined as the energy released or absorbed per mole of solute being…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 161.0 g sample…

A: A chemist carefully measures the amount of heat needed to raise the temperature of a 161.0 g sample…

Q: A gas is compressed from an initial volume of 5.65 L to a final volume of 1.23 L by an external…

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

Q: A 6.55 g sample of an unknown salt (MM = 116.82 g/mol) is dissolved in 150.00 g water in a coffee…

A: The total mass of a solution is the summation of the mass of solute and the mass of solvent. The…

Q: A 6.57 g sample of an unknown salt (MM = 116.82 g/mol) is dissolved in 150.00 g water in a coffee…

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

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

A:

Q: A sample 0.750 g of peanut butter was burned in a calorimeter filled with 300.0 g of water. The heat…

A:

Q: A system has an initial energy of 117 Joules. The energy equation includes -40.1 J of heat and 20.3…

A:

Q: A 25.0 g block of Al with specific heat 0.897 is placed into 100.0 g of water at 30.0°C. The final…

A: The heat lost by the hot body is equal to the heat gained by the cold body.

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 794.0 g sample…

A:

Q: qmetal = -1710 J and qH2O = 1430 J.  ΔTH2O = 10.1 oC.  Calculate the calorimeter constant, Ccal in…

A:

Q: 2.5 g sample of french fries is placed in a calorimeter with 500.0 mL of water. The initial…

A: Given:  Volume of water in calorimeter = 500.0 ml  Initial temperature of water = 21.0°C  Final…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 286.0 g sample…

A:

Q: 10. Ethanol OH weighing 3.56 g is burned in a calorimeter. The temperature rises from 15.C to C. The…

A: During the burning of ethanol the heat released is absorbed by water and a calorimeter. First of…

Q: When using a coffee cup calorimeter to determine the specific heat of a metal sample errors can…

A: Calorimeter is a device used to determine amount of heat transferred during a reaction. Coffee cup…

Q: 2. A piece of Cu metal is heated in a test until the temperature reaches 96 °C and dropped into a…

A: 2. A piece of hot Cu metal at 96 °C is dropped into a calorimeter, containing 50 mL of water at 27…

Q: In the following reaction, how many grams of CH3OH are required to produce 1.578 x 10' kJ of heat? 2…

A: