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

Q: 1. A student determines the molar mass of acetone, CH.COHS, by the method used in this experiment.…

A: Mass of solute = 10.5 gMass of solution = 86.4 g

Q: -NH₂ 1. NaNO₂ 2. HBF4 3. KMnO4, heat

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Q: Consider these reactions: Reaction 1: H2 (g) + Cl2 (g) 2HC1(g) AH = -184.6 kJ Reaction 2: 20F2 (g)…

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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: 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: 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: In part 1 of this lab, you will be calculating A,H by conducting constant-pressure calorimetry…

A: Constant-pressure calorimetry is used to measure the change in enthalpy, ΔH, for a physical or…

Q: How many litres of CS2(g) are decomposed with the release of 2.34 x 107 J of energy?

A: The chemical reaction with change in entropy is, CS2 (l) + 3O2 (g) → CO2 (g) + 2SO2 (g) ∆H  = -1077…

Q: Which of the following statement is incorrect? Select all the incorrect statements, wrong choices…

A: Some statements from thermodynamics is given. We need to find the incorrect statement from the given…

Q: When NH4Cl(aq) reacts to form NH3(g) and HCl(aq), 21.07 kcal of energy are absorbed for each mole of…

A: We have to determine the value of ∆H for the given reaction

Q: Perform the conversions between energy units. 8.70 x 10² kJ = 3255 kcal = 5.27 x 106 J = kJ kcal

A: Energy unit conversions are an essential aspect of physics and engineering, allowing us to express…

Q: What is the most common way that energy is exchanged with the environment during a chemical…

A: The amount of heat required or released in a process is known as the heat change of the process.…

Q: 9.69 x 10^6 J = ? Kcal

A: Given :-  energy = 9.69 x 106 J  To convert :-  The above energy in Kcal

Q: q= 4.184 heat energy in joules. Use the formula: q=(m)(c)(ΔT) where m=mass of water being heated in…

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Q: A sample of iron absorbs 77.8 J of heat, upon which the temperature of the sample increases from…

A: Formula, Q = MSΔT

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 196.0 g sample…

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Q: A student sets up the following equation to convert a measurement. (The ? stands for a number the…

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Q: Your answer must have correct sign (+ o r -) and must have 1 decimal place. DO N OT WRITE THE UNIT.…

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Q: Consider the reaction. heat 2 Al(s) + Fe₂O3(s) Al₂O3(s) + 2 Fe(1) If 13.5 kg Al reacts with an…

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Q: How much heat, in Joules, is absorbed by 60 g of water in order to increase in temperature from 23°C…

A: Interpretation: The amount of heat, in joules absorbed by 60 g of water in order to increase in…

Q: 4. For the following solution, the mass of solute is given, followed by the total volume of the…

A: Molarity can be defined as the number of moles of solute dissolved per litre of solution..It is a…

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

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Q: ? stands for a number the student is going to calculate.) the missing part of this equation. your…

A: We will write the conversion

Q: equivalent

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Q: 1.219 Joules converted to cal

A: We know, 4.184 Joule = 1 Cal Or. 1 Joule = (1/4.184) Cal = 0.239 Cal

Q: 2.What happens to the average kinetic energy of the water molecules in your body when you have a…

A: 2. Given information,       Average kinetic energy of the water molecules in your body when you have…

Q: 1. For, 2 Al (s) + 3 CuCl, (aq) →2 AICI; (aq) + 3 Cu (s) (a) Find the moles of Cu formed by using…

A: The given reaction is- 2Al (s) + 3CuCl2 (aq)→2AlCl3 (aq) + 3Cu (s) As per the equation, 2 moles of…

Q: Calculate AT from the temperatures extrapolated to the time of mixing: AT = temperature of mixture –…

A: Interpretation: To fill the details in the table. Given data: From the experimental steps, we can…

Q: 2. For each of the following experimental errors clearly state if the error would increase,…

A: Specific heat : It is the quantity of heat required to raise the temperature of one gram of any…

Q: Write a balanced chemical equation for the standard formation reaction of gaseous water (H₂O). 0 ローロ…

A: Answer:- This question is answered by using the simple concept of formation of a compound which…

Q: 1. A student determines the molar mass of acetone, CH.COHS, by the method used in this experiment.…

A: Mass of acetone = 10.5 gMass of solution = 86.4 g

Q: A solution is made by mixing 197.3 g of ethanol initially at 10.5°C with 250.0 g of water initially…

A: We know that, according to the law of conservation of heat energy, energy gained or loss by the…

Q: What is the specific heat of lead if it takes 98.0 J to raise the temperature of a 75.4 g block by…

A: Given :- heat absorb = 98.0 J  mass of lead block = 75.4 g  change in temperature of block = 10.5°C…

Q: When 13.99mL of HCl of unknown concentration (but less than that of the base) are reacted with…

A: Given : Concentration of NaOH = 3.172 M Volume of NaOH solution = 15.00 mL = 0.0150 L…

Q: Consider the following reaction: + 2 XD → AD₂ + 2 GX = -487.4 kJ AG₂ ΔΗ, O rxn You measure that…

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Q: 889 kj to j

A: In the given question we have to convert the following energy value from Kilojoule (kJ) to joule…

Q: How much heat, in Joules, is absorbed by 54 g of water in order to increase in temperature from 18°C…

A: Given that:  Mass of water = 54 g Increase in temperature , t =  (55-18 )oC = 37 oC

Q: Lithium chloride (LiCl) has a lattice energy of - 853 kJ mol and a heat of hydration of -883 kJ…

A: The objective of this question is to calculate the heat of solution by using lattice energy and…

Q: A А A BUDE F D CI AICI 3 Br Zn(Hg) + HCl(aq) NBS, light OH (aq) heat B E Br C F ? Br

A: Benzene on reaction with acyl chloride gives substitution reaction which on reduction gives alkyl…

Q: solutions, no points. Do not use pencils) 1. Calculate the temperature change when: 10.0 kg of water…

A: Dear learner, as per guideline I can solve only 1 question at once further can be reposted. Thanks…

Q: If 1369 J of heat are released when 156 g of silicon cools from 37.5 oC to 2.50 oC, what is the…

A: Amount of heat released = 1369 J Amount of heat released (∆H) -1369 J Negative sign indicates heat…

Q: -1 R=0.0589 kPa·km -4 Convert R to kJ•m

A: A NASA spacecraft measures the rate R of at which atmospheric pressure on Mars decreases with…

Q: Consider these reactions, where M represents a generic metal. 1. 2 M(s) + 6 HCI(aq) → 2 MCI, (aq) +…

A: Given- 2 M (s) + 6 HCl (aq)  →  2 MCl3 (aq) + 3 H2 (g)       ∆H1 = -931.0 kJ HCl (g) → HCl (aq)…

Q: A neutral solution of water at a particular temperature has a concentration of OH of 3.0 x 107 M.…

A: