Why is it important to keep the lid of the "coffee cup" calorimeter on during the reaction? O So the heat of the surroundings does not affect the temperature inside the calorimeter. So the oxygen in the air does not react with the chemicals inside the calorimeter,

Q: Let us assume that a car completely burns its fuel to carbon dioxide and water. Let us further…

A:

Q: A coffee cup calorimeter can be used to measure the heat of reaction at a constant volume: A:true…

A:

Q: (b) Explain the following terms: (i) Internal energy of a system (ii) Bomb calorimeter

A: The following terms has to be explained i) Internal energy of a system ii) Bomb Calorimeter

Q: 1. This reaction was done in a coffee cup calorimeter.  The total mass of water in the coffee cup…

A: 1) Mass of water = 120 g Specific heat of water = 4.184 J/g oC Change in temperature = 41 - 17.5=…

Q: What is a calorimeter constant? ) Amount of energy lost out of or absorbed by a calorimeter )…

A: In this question, we have to choose the correct option for the given question.

Q: How does the heat produced when 1 mole ofC is burned directly to CO2by the reactionC(s) +…

A: According to Hess law of constant heat summation, "the heat energy absorbed or evolved during a…

Q: What is calorimetry? Explain the difference between a coffeecup calorimeter and a bomb calorimeter.…

A: Calorimetry: The calorimetry is a technique that can be used to measure the amount of heat involved…

Q: In a bomb calorimeter, reactions are carried out at constant coffee cup calorimeter, reactions are…

A: Given:

Q: Consider the combustion of methane: CH4(g) + 2O2(g) --> CO2(g) + 2H2O(l) deltaH = -890.4 kJ/mole…

A: Given, the combustion of methane as follows,CH4(g) + 2O2(g) → CO2(g) + 2H2O(l)   ;  ∆H =-890.4…

Q: Coffee-cup calorimetry is carried out at constant-volume constant-pressure constant-mass

A: In actually we know the two types of calorimetry.  1- Bomb calorimetry : In this type of calorimetry…

Q: If a reaction takes place in a water-based calorimeter and the temperature of the water increases,…

A: given  water bases calorimeter Temperature of water is increasing Nature of Reaction = To be…

Q: A reaction takes place inside a constant pressure calorimeter. The heat absorbed by the calorimete O…

A: At constant pressure the heat absorbed by the calorimeter is equal to the enthalpy of the reaction .

Q: n order to obtain the largest possible amount of heat from achemical reaction in which there is a…

A: Does the reaction under conditions of constant volume or constant pressure have to be carried out or…

Q: Which of the following statements is TRUE? If a chemical reaction changes direction, then AH°rxn…

A: Thermodynamics is used to determine whether the reaction is energetically possible in the given…

Q: From the results of the simulation, can you conclude that there is also a heat transfer to or from…

A: According to first law of thermodynamics, the total energy of a system remains constant.If a…

Q: Glucose, , is converted into ethyl alcohol, in the fermentation of fruit juice to produce wine.…

A: The reaction for conversion of glucose (C6H12O6) to ethyl alcohol(C2H5OH) is given as:C6H12O6 → 2…

Q: Two major pollutants found in automobile exhaust are NO and CO. You must convert these two…

A:

Q: The ∆Hfº of MgO is –602 kJ•mol‒1.  When 20.15 g MgO is decomposed at constant pressure according to…

A: Given,ΔHf = -602 KJ/molMass of MgO = 2015 gMolar mass of MgO = 40.3044 g/mol

Q: What quantity of energy is needed to heat a 1.00 mole sample of H2O ‍ from  -30.0 degrees C to 140.0…

A: Since in heating H2O ‍from -30 0C to 140 0C following steps will happen 1) Heating of ice from -30…

Q: Mass of Empty Calorimeter (g) Mass of calorimeter with hot water (g) Hot water temperature just…

A:

Q: Question #2: The following mathematical statement is critical to the uce of calorimotry and ie a…

A: Given: The equation used in calorimetry is given as,

Q: Constants | Perlodic Table A calorimeter is an insulated device in which a chemical reaction is…

A: Formula used  q= mwaterCwaterdT + Cx dT where dT = change in temperature  C = heat capacity and m =…

Q: Measurements show that the enthalpy of a mixture of gaseous reactants decreases by 123. kJ during a…

A: Given: The enthalpy of the mixture i.e. system is decreasing by 123 KJ. And the work done on the…

Q: When measuring the acid samples in the graduated cylinder, the student reads from the top of the…

A: The equipment used in laboratory are always marked above meniscus to avoid the loss of volume in…

Q: 9. What is the difference between the system and the surroundings? 10. What is the difference…

A: 9. There are some basic terms in thermodynamic such as system, surrounding and boundary. The system…

Q: Why is their a decrease in temperature when NaCl is added to a  calorimeter filled with water?

A: When an electrolyte is added to a solvent then  solute-solvent interactions prevent the solvent from…

Q: Consider the bomb calorimeter set-up. During the melting of the ice cube in the calorimeter,…

A: A question based thermochemistry that is to be accomplished.

Q: A,  Inside a calorimeter is 100 g of water at 39.8 ºC. A 10 g object at 50 ºC is placed inside of a…

A: Given: Initial temperature of metal = 50 ºC Initial temperature of water = 39.8 ºC Final temperature…

Q: nat is the simplest type of calorimeter that is commonly used today' O cup calorimeter O Hoffman's…

A: Answer Constant pressure type calorimeter that is commonly used Today

Q: Which of the following statements is TRUE? a. State functions do not depend on the path taken to…

A: a True. because state functuon only depends on the state of a system example, mass pressure entropy.…

Q: d. Why do you purge the nitrogen out of the bomb calorimeter? can you know if the combustion of your…

A:

Q: Which situation would make the use of a bomb calorimeter more appropriate than the use of a…

A: In a Bomb calorimeter, the reaction takes place in a sealed metal container which is immersed in…

Q: Which of the following statements is correct if a reaction is carried out at constant pressure? O…

A:

Q: can determine mathematically how much energy will be produced or absorbed for a given chemical…

A: To explain: How can we determine the amount of heat produced or absorbed in the chemical reaction…

Q: 1.Diagrammatically explain the features of calorimetry. 2.Discuss the difference between…

A: 1.  Calorimetry is a technique used to measure the amount of heat involved (i.e. absorbed or…

Q: Explain the following terms: (i) Internal energy of a system (ii) Bomb calorimeter

A:

Q: why is it unnecessary to dry the calorimeter between trials? This question relates to the heat of…

A: Given: calorimeter  To find: why it is not necessary to dry calorimeter between the trials.…

Q: The energy of an exothermic reaction is O released into the environment O consumed in the reaction O…

A: Exothermic reaction is the reaction in which energy/heat is released as the total energy of products…

Q: The _____ must be collected in order to determine the caloric content of food using a bomb…

A: A method in which a calorimeter is used in order to measure the change in heat during a chemical…

Q: Using the values provided in the table below, calculate ΔHr for the following reaction: 2CO2(g) +…

A: For the reaction: 2CO2(g) + 4H2O(g) → 2CH3OH(l) + 3O2(g)  ΔHr for the above-provided reaction has to…

Q: Let’s say that an inventor creates a new instrument to control the temperature using the salts given…

A: Energy changes associated with physical or chemical changes as well as the heat capacity can be…

Q: 27 of 42 (> Constants | Periodic Table A calorimeter is an insulated device in which a chemical…

A:

Q: hot (158°F) of metal has a mass of 250 g and a specific heat of 0.25 cal/g·C°. John drops the metal…

A:

Q: If ∆Hf° for the following substances are as follows, Ca(OH)2 is -986.6kJ/mole, H3AsO4 is -900.4…

A: Given, ∆Hf° of Ca(OH)2 : -986.6 kJ/mole ∆Hf° of H3AsO4 :  -900.4 kJ/mole ∆Hf° of Ca(H2AsO4)2 :…

Q: Consider the reaction:B2H6(g) + 3O2(g) --> B2O3(s) + 3H2O(g) ΔH = -2035 kJCalculate the amount of…

A: Standard enthalpy change for given equation is -2035kJ recorded is shown above.  Calculate amount of…

Q: The standard heat of combustion of a fuel (molar mass of 46 g/mole) is 1372 kJ/mol. How much heat…

A: Given that Molar mass = 46 g/mol Heat of combustion (ΔH) = –1372 kJ Heat liberated by 25.0 g sample…

Q: A student is performing a calorimetry experiment using a 'coffee-cup" calorimeter, The student…

A:

Q: The heat of reaction is utilized for calculating the number of energy per mole only for the released…

A: Given : We have to tell whether this statement is true or not.

Q: A 7.37 g sample of an unknown salt (MM = 116.82 g/mol) is dissolved in 150.00 g water in a coffee…

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Q: It is advantageous to use the hydrogen gas for your fuel because it gives high calorific value.

A: Interpretation : We have to tell why hydrogen for you fuel because it has high calorific value.