Determine the amount (in moles) of 162.84 mg of calcium acetate.

Q: a) Is this reaction exothermic or endothermic? Explain. b) How much heat is released when a 5.00 g…

A: Given: The reaction is as follows: 2 C6H6(l) + 5O2(g) ------------------> 12CO2(g) +6 H2O(g).…

Q: How do I calculate Molar Heat of Reaction? How do I calculate avg Molar Heat of Reaction? Attached…

A: The molar heat of reaction and standard molar heat of reaction is the same quantity. For exothermic…

Q: How many kJ of heat are released when 80.9 grams of HBr is formed in this reaction? H2 (g) + Br2…

A: Hydrogen reacts with bromine to form hydrogen bromide. The equation for the balanced chemical…

Q: A sample of gas is placed into an enclosed cylinder and fitted with a movable piston. Calculate the…

A: Work done by the gas is given by W = -P × ∆V W = - P × (V2 - V1) W = work done P = external pressure…

Q: Given the reaction: 2??2?3(?) → 4??(?) + 3?2(?) ∆?? = 2269.4 ?? How much heat in kJ is required to…

A: Given equation is2Cr2O3→4Cr+3O2         ∆G=2269.4 kJfrom balanced equation4 moles of Cr production…

Q: An aluminium can of a soft drink is placed in a freezer. Later, you find that the can is split open…

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Q: If 0.251 grams of MgO were added to 24.8 mL of HCl (density = 1g/mL), use the graph collected below…

A: According to the given graph,  Initial temperature of HCl solution, Ti = 19.41 oC. Final temperature…

Q: An automobile engine provides 519 Joules of work to push the pistons. In this process the internal…

A: According to first law of thermodynamics , the relationship between change in internal energy , heat…

Q: How much heat is released at constant pressure if 12.3 mL of 0.161 M silver nitrate is mixed with…

A: First calculate moles of each reactant by multiply MOLARITY and volume  then find out limiting…

Q: As a routine safety procedure, acids and bases should be stored separately in a laboratory.…

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Q: An automobile engine generates 2228 Joules of heat that must be carried away by the cooling system.…

A:

Q: A student is planning to determine the specific heat capacity of iron. To do this experiment the…

A: Specific heat capacity: The amount of heat absorbed by 1 gram of a substance to increase its…

Q: (ii) the maximum energy that can be made available for work due to the process.

A: Given: Moles of gas = 100 Initial volume = 2m3 Final volume = 5m3 Temperature  = 280 K Constants, a…

Q: 2A1(s) + 302(g) ---> 2A1203(s)    ΔHo = + 3351 kJ               The reaction shown above is…

A: When the heat is absorbed by the reaction then the reaction is known as endothermic reaction and…

Q: Would you agree to buy 1.23 x 1021 platinum atoms for $21? Explain why or why not, showing all work.…

A: 1 mole = 6.022×1023 [ Avogadro's number ] The mass of 1 mole of atoms of an element is called its…

Q: heat energy is required

A:

Q: Enter your answer in the provided box. 0 Calculate AG for the following reaction at 25°C: AGº kJ/mol…

A: Oxidation is lose of electrons and reduction is gaining of electrons. The reactions where oxidation…

Q: An automobile engine generates 2264 Joules of heat that must be carried away by the cooling system.…

A: According to the first law of thermodynamics, U = Q - W where U represents the change in internal…

Q: (5) Consider the reaction: 2H2(g) + O2(g) → 2H₂O(1) The heat produced (KJ) to produce 1.0 mole of…

A: Mole is a standard unit for measuring large quantities of very small entities such as molecules,…

Q: A system absorbs 21.6 kJ of heat while performing 6.9 kj of work on the surroundings. If the initial…

A:

Q: 45. How much heat is produced by burning 4.00 moles of acetylene under standard state conditions?

A: Combustion is an exothermic reaction.  The balanced chemical equation for the combustion of…

Q: How much heat is needed to heat up 36 kg of hydrogen gas from 12.0C to 48.0C?

A: The specific heat capacity for a given chemical substance or a solution refers to the amount of the…

Q: Acetylene can be produced by forcing calcium carbide to react with water, producing calcium…

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Q: 8. How many atoms are in 1.65 moles of titanium? Show all work and give answer a unit. Your answer…

A: Mole is the amount of the substance that contains the same number of particles or atoms or…

Q: Show all calculations and steps: 10. Determine the amount (in moles) of 2.35 kg of hydrogen…

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Q: d. One mole ammonium nitrate dissolves in water to produce aqueous ammonium ions and nitrate ions,…

A: The thermochemical equation is a balanced stoichiometric chemical reaction that can be written along…

Q: A mountain hiker found a chunk of shiny metal on the trail.  He wanted to find out the identity of…

A:

Q: Given ΔG∘rxn=103.7 kj/mol for N2O(g) and ΔG∘rxn=-520.3 kj/mol for BaO(s), calculate ΔG∘rxn for the…

A: Given : ΔG∘rxn=103.7 kj/mol for N2O(g)  ΔG∘rxn=-520.3 kj/mol for BaO(s), calculate ΔG∘rxn .

Q: 4. Magnesium metal reacts with hydrochloric acid to produce hydrogen gas: Mg + HCI-H₂ + MgCl₂ If…

A: Given-> Weight of Mg = 2.30 gm At SATP -> Temperature (T) = 25°C = 298 K Pressure (P) = 100…

Q: calculate calorimeter constant to 2 significant figures

A: Given that -  Temperature of cold water = 3.0°C  Temperature of hot water = 89.0°C  Volume of cold…

Q: Would you agree to buy 1.23 x 1023 silver atoms for $10? Explain why or why not, showing all work.…

A: First of all we calculate the gram of silver for given number of atoms of silver. Then we will…

Q: student is planning to determine the specific heat capacity of iron. To do this experiment the…

A:

Q: An automobile engine provides 623 Joules of work to push the pistons. In this process the internal…

A: According to the first law of thermodynamics, the energy of the universe remains constant. For a…

Q: A reaction is endothermic if it  A. absorbs heat  B. does work  C. has work done on it  D. releases…

A: A reaction is endothermic if it absorbs heat.

Q: Consider the formation of NaCl from its constituent elements in their standard states?

A: Born-Haber cycle: (proposed by M. born and F. Haber) In this cycle Hess's law is applied for…

Q: 5. Identify the INCORRECT properties for a coffee-cup calorimeter. A. Constant volume calorimeter B.…

A: The calorimeter can be of constant volume and constant pressure type thus. First and second…

Q: An automobile engine provides 617 Joules of work to push the pistons. In this process the internal…

A:

Q: 684 g of sucrose undergo fermentation to form 349 g of ethanol. What is the percent yield of…

A: Given ,  Mass of sucrose = 684 g Molar mass of sucrose (C12H22O11) = 342.0 g/mol Moles of sucrose =…

Q: Potassium aluminum sulfate has the formula KAl(SO₄)₂·12H₂O. If 0.5000 moles of alum are heated until…

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Q: Using the following information, calculate the ΔH∘rsn Δ H r s n ° for the reaction between ammonia…

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Q: Show all calculations and steps: 9. Determine the amount (in moles) of 53.45 g of lithium…

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Q: 1. Internal energy change is the sum of heat and work. Explain why the internal energy change of the…

A: The amount of energy inherent in every system is its Internal energy. This energy arises due to the…

Q: What will be the final temperature of the water and the bomb calorimeter in this experiment?

A:

Q: How much heat is produced by combustion of 125 g of methanol under standard state conditions?

A: Given: Mass of methanol(CH3OH) = 125 g ΔH = -764 KJ/mol Molar mass of CH3OH = 32.04 g/mol

Q: True or False?  Consider 1 mole of gas A and 1 mole of gas B mixed together inside a rigid 1.0 L…

A: the kinetic energy of gas molecule is dependent on absolute temperature of the gas. The gas…

Q: Chloroform is an organic solvent found in many chemistry laboratories, and it is fairly volatile.…

A: Formula used : pressure = density * RT/molar mass

Q: Consider the combustion of pentaborane-9 (B5H9 ):   2 B5H9 (l) + 12 O2 (g) → 5 B2O3 (s) + 9 H2O (l)…

A: Combustion reactions are a type of chemical reaction, in which the compound reacts with oxygen to…

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.