If 585 J of energy are absorbed by 125.6 g of aluminum and the initial temperature is from 20.0 oC, what is the final temperature? Is this endothermic or exothermic?

Q: The following thermochemical equation is for the reaction of HCl(g) with NH3 (9) to form NH4Cl(s)…

A: This is exothermic reaction as ∆H of the reaction is negative.  1 mole ammonia react with 1 mole…

Q: The reaction of hydrogen and nitrogen gases produces 5.00 g of ammonia and releases 3250 cal of…

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Q: The decomposition of 10.0 g of ammonia requires 27,200 J of energy to give hydrogen and nitrogen…

A: Heber process: It is the industrial technique to produce ammonia from nitrogen and hydrogen gas. The…

Q: What is the change in energy of a gas at a pressure of 135 kPa, if the gas loses 250 J of energy as…

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Q: How many grams of iron (III) oxide will be produced if 4300 kJ of heat energy is released?   (Hint:…

A: Given a reaction 4 Fe+ 3 O2 → 2 Fe2O3.        ∆H = – 1652 kJ We have to calculate the amount of iron…

Q: The temperature of 756 g of water in a calorimeterincreases from 23.2°C to 37.6°C. How much heat…

A: Given: Mass = 756g Initial temperature= 23.2oC Final temperature= 37.6oC To find: The heat given off…

Q: If 63.50 g of an unknown metal at 97.6 °C initially produced a resulting temperature of 39.5 °C when…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: An unknown metal with a specific heat of 0.385j has an initial temperature of 65.4 C. the metal is…

A: The heat absorbed or released by the Substance related with each other by following formula -   M1…

Q: A piece of cobalt originally at 90.6°C was placed into a coffee cup calorimeter containing 200.0…

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Q: If 890 kJ is released during the combustion of 1 mol of methane, what is the heat of reaction if…

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Q: A 225-g sample of aluminum was heated to 125.5 oC, then placed into 500.0 g water at 22.5 oC. (The…

A: Here we have:           mass of aluminiun, mAl = 225 g             mass of water , mH2O = 500.0 g…

Q: 6. A 128g piece of Iridium at 95 C is dropped into a 45.2g of water at 17.3 C. The final temp of the…

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Q: Calculate the increase in the temperature of Aluminum when 12.76 kcals of heat are supplied to a 2.0…

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Q: A chemist measures the energy change AH during the following reaction: 2 H₂O(1)→ 2 H₂(g) + O₂(g) Use…

A: In an exothermic reaction, heat is released and in an endothermic reaction, heat is absorbed.

Q: The reaction between nitrogen and oxygen gases require the absorption of 43 kJ of energy per mole of…

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Q: Calculate the energy change when 25.0 g of magnesium changes from 27°C to 45°C. The specific heat of…

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Q: What is the change in energy (in J) for a system that lost 344 J of heat to the surroundings, and…

A: Assume that work (w) is done on the system, so w will be positive.Given:Heat lost, Q  = - 344 JWork…

Q: A chemist measures the energy change AH during the following reaction: C3H₂(g) +50₂(g) → 3 CO₂(g) +…

A: Exothermic reaction and endothermic reaction:Exothermic reaction : Exothermic reactions are reaction…

Q: When one mole of methanol burns, 1453 kJ of heat is evolved. Two milliliters of methanol (d =…

A: Answer:The law of conservation of energy states that energy cannot be created nor destroyed, it can…

Q: What is the change in energy of a gas at a pressure of 135 kPa, if the gas loses 250 J of energy as…

A: A gas is compressed from 42.8L to 31.3L at a pressure of 135KPa. The gas loses 250J of energy. What…

Q: A decomposition of hydrogen peroxide into water and oxygen gas is an exothermic reaction. If the…

A: Exothermic reactions are those which releases energy to the surroundings causing an increase in the…

Q: How many grams of carbon are present if it requires 57.5 kJ of energy to heat a sample from 20.0 to…

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Q: How many kilojoules of heat are required to raise the temperature of 178 g of aluminum from 13.0˚C…

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Q: A student is collecting data for the reaction of baking soda and vinegar. The initial temperature of…

A: Exothermic and endothermic reactions are two types of chemical reactions that differ in the way they…

Q: 20.0 g sample of aluminum (specific heat = 0.902 J g-1 C-1) with an initial temperature of 48.6C…

A: Given that: Mass of aluminium(m) = 20.0g  Specific heat (C) = 0.902J/g°C Initial temperature(Ti) =…

Q: 6. A 5.00 g piece of lead is heated to 290.0 °C and then placed in 50.0 g of water at 25.0 °C in a…

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Q: A certain pressure has a 0.579 atm what is the pressure in psi ?     how do I find psi?

A: Given, P = 0.579 atm

Q: The reaction between iron(III) oxide and aluminum, to produce aluminum oxide and iron, has a heat of…

A: The reactants given are Iron (III) oxide i.e Fe2O3 and Aluminium i.e Al and the products given are…

Q: Suppose the 25.0 g of the following substances all initially at 27.0 °C absorb 2.35 kJ of energy.…

A: Amount of heat,Q required to change the temperature of a substance of mass ,m and specific heat…

Q: The amount of energy required to raise the temperature of a substance by 1 K (1 °C) is its heat…

A: We have to conclude what is the term called in chemical thermodynamics when 1g of substance is…

Q: ystem does 675 kJ of energy onto its surroundings while releasing 1543 J of heat. What is the change…

A: To find the change in energy of the system, you need to consider both the work done by the system…