Mass of unknown metal (g) Mass of calorimeter cup (g) Mass of calorimeter and water (g) Temperature of boiling water bath (°C)

Q: is energy in motion. a Chemical Energy O b Potential Energy O c Work O d Kinetic Energy

A: Kinetic Energy is energy in motion . When any Particle is in motion it contains Kinetic Energy .

Q: Given the data below, H°rxn for the reaction 3Cl2 (g) + PH3 (g) → PCl3 (g) + 3HCl (g) is…

A: Hess's law  states that the amount of heat evolved or absorbed in a process is independent of the…

Q: e shows the number chemical Change C cal Reaction Read of the following state hemical reaction A, b…

A: Types of chemical reaction 1. Chemical combination reaction or synthesis reaction 2. Chemical…

Q: In an exothermic reaction, chemical energy is converted to

A:

Q: Amount of energy greater than the energy contained in the reactants, which must be overcome for a…

A: Collision theory tells us that basic requirement for a reaction to occur is that the reacting…

Q: Which is an example of an endothermic reaction

A: Endomthermic reaction is  a type of chemical reaction in which heat or thermal energy is absorbed by…

Q: CS2 and 10.0 g Cl2 reacts by the followi CS2(g) + 3Cl2 (g) AH = -230. kJ

A: Given, Mass of Cl2 = 10 g Mass of CS2 = 10 g Molar mass of CS2 = 76 g/mol Molar mass of Cl2 = 71 g…

Q: a. Endothermic

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Q: In the laboratory a student finds that it takes 49.2 Joules to increase the temperature of 14.8…

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Q: During photosynthesis, plants use energy from sunlight to form glucose and oxygen from carbon…

A: 1- In this question, we want to calculate the mass of CO2 in grams unit.  You can see whole…

Q: Concentration of hydrochloric acid (M) 2.07 Concentration of sodium hydroxide (M) 2.09 Calorimeter…

A: The balanced equation for the neutralization reaction of HCl(aq) and NaOH(aq) is: HCl(aq) + NaOH(aq)…

Q: what is ΔHcond for this substance?

A:

Q: How many grams of C6H6 must decompose according to the chemical equation to transfer heat 430 J of…

A: The decomposition reaction is, 1 mole of reactant is decomposing and transfers 630Kj of heat or (63…

Q: Calcium metal reacts with water to produce calcium hydroxide and hydrogen gas, releasing 635.1 kJ of…

A: The balanced chemical equation of calcium reacts with water is given as,

Q: C. CALORIMETRY Mass of calorimeter, cup, and cover: Initial temperature of warm water: Mass of…

A: Mass of warm water alone = 145 gram Mass of warm ice alone = 20 gram Initial Temperature of ice Ti =…

Q: mass of empty carlorimeter is 7.73g, mass of calorimeter + water is 46.875g, Calculate  mass  of…

A:

Q: RUN 1 RUN 2 Mass Mg (mg): Mass Mg (mg): Moles Mg (mol): Moles Mg (mol): AT (°C): AT (°C): Heat…

A: Experiment Mass of Mg (mg) Initial temperature ( oC) Final temperature ( oC) 1 19.8 19.1 32.9 2…

Q: UNKNOWN METAL DATA: mass of unknown metal = 50.0g %3D initial temperature of unknown metal = 130-0C…

A: We are given mass of unknown metal(mw )=50.0 gminitial temperature(Tui)=130°Cmass of water in…

Q: Part B: Heat of Solution Name A) For NaOH Volume of H2O used Note: density of water, dH20 = 0.997…

A: Concept ∆Hsoln=qnwhere q= heat of the solutionn= moles of solute

Q: complete the table using the information provided Mass of unknown metal (g) 20.13   20.13   Mass of…

A: The amount of heat transferred in a system is calculated as follows,…

Q: what are the differences between an Exothermic Reaction and an Endothermic Reaction?

A: Differences between an Exothermic Reaction and an Endothermic Reaction:

Q: When calculating the heat of reaction why did we have to add C calorimeter   specific heat ?

A: A calorimeter is a device used to determine the quantity of heat involved in the chemical or…

Q: Taro Peed Sarving Part C: Energy in Changes of State: C1. Mass of empty calorimeter cup with lid 6.…

A: We will use the formula q = mcΔT here where q = heat absorbed or released.  m = mass of the…

Q: energy during photosynthesis as the plant makes glucose from carbon dioxide and wa energy, which is…

A: We have to tell about the convertion of energy

Q: Given the reactions below, answer the following questions. Cl2​(g)+F2​(g)2ClF(g)    ΔG∘rxnΔGrxn∘ =…

A: Given chemical reaction:

Q: An automobile engine generates 2140 Joules of heat that must be carried away by the cooling system.…

A:

Q: How do I find specific heat of cadmium metal? I have the initial temerature, final temperature and…

A: Step 1-Specific heat capacity(c) is the amount of heat given to one unit mass of the substance that…

Q: When heated, the temperature of a water sample increased from 15°C to 39°C. It absorbed 4300 joules…

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Q: After performing the experiment related with calorimeter, we observed Temperature of hot water is 49…

A: The water equivalent of a calorimeter is defined as the mass of water that will absorb or lose as…

Q: Calculate the moles of acetylene needed to produce 0.060 of carbon dioxide

A: Given :- number of moles of CO2 = 0.060 mol  To calculate :- number of moles of C2H2 required.

Q: the amount of heat released (in kJ)

A:

Q: m cold Mass of cold water (g) = 50 g Tic Initial temperature of

A: Given, mcold=50 gTic=15°Cmhot=50 gTIh=80°CTf=35°C

Q: A potato chip is burned in an incomplete combustion reaction, and the heat energy is transferred to…

A: The mass of water is determined as follows. mwater=dwater×Vwater=1.00 g/mL×150 mL=150 g

Q: Consider the following reaction: N₂ (g) + 2H₂ (g) = N₂H4 AH = -276 kJ

A: Given: N2(g) + 2H2 (g) ⇌ N2H4 ∆H = -276 kJ The objective is to predict the equilibrium shift

Q: Alexia determined the mass of her empty Styrofoam cup calorimeter was 1.4528 g. She then added…

A: By mass conservation : Mass of water in Alexia's cup = mass of cup + water - mass of empty cup…

Q: Hydrogen gas reacts with oxygen to form water. 2H2(g)+O2(g)-->2H2O(g) the ethalpy of the chemical…

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Q: The value of An, in the combustion reaction of methane is

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Q: Concentration of hydrochloric acid (M) 2.07 Concentration of sodium hydroxide (M) 2.09 Calorimeter…

A:

Q: HBr (1 mole) CH3OC(CH,), heat

A: Protonation of etheral oxygen  Formation of carbocation intermediate. Attack of nucleophile to…

Q: Calorimetry:

A: In this question we have to explain about bomb calorimetry(heat of combustion of benzoic acid and…

Q: The coffee-cup is a constant type of calorimeter.

A: Coffe cup calorimeter is type of calorimeter.

Q: Acetylene  C2H2  gas is often used in welding torches because of the very high heat produced when…

A: Acetylene gas reacts with oxygen to produce carbon dioxide gas and water vapor. The following…

Q: ich heat energy is

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Q: Reaction A (Mg + HCI) Trial 1 Trial 2 Mass of Calorimeter (g) 2.384 2.431 Mass of Calorimeter + HCI…

A: We would use given data values to calculate these values as : 1.) Mass of HCl = ( mass of…

Q: Find the amount of heat given off from combustion of 330 g of CH3OH, according to the equation CH3OH…

A: Given: ∆H of methyl alcohol = -726 kJ/mol Mass of methyl alcohol = 330 g Molar mass of methyl…

Q: Alexia determined the mass of her empty Styrofoam cup calorimeter was 1.0698 g. She then added…

A: Mass of empty styrofoam cup calorimeter is 1.0698 g and combined mass of cup + water is 33.2191 g We…

Q: True or false, a chemical reaction that liberates heat energy is said to be exothermic.

A:

Q: Titanium(IV) oxide is commonly used as a white paint pigment. The compound is produced by the…

A: For a chemical reaction, the enthalpy of the reaction is the difference between products and the…

Q: When a person eats to gain energy for activities, your body uses O a Gravitational Potential Energy…

A: Chemical potential energy is the energy stored in the chemical bonds of a substance.

Thermochemistry

Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.    

Exergonic Reaction

The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.