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: What is the specific heat of a 65.51 g piece of an unknown metal that exhibits a 45.2°C temperature…

A: Weight of unknown metal= 65.5 1g Temperature (∆T)= 45.2°C Absorbed heat=1870 J

Q: A system initially at 89 oC experiences a change to a final temperature of 90 oC. Did the system…

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Q: If 87 J of heat are added to a balloon, causing it to expand from 1.0 L to 1.4 L under 0.97 atm of…

A: Given: Required heat = 87 J Initial volume = 1.0 L Final volume = 1.4 L External pressure = 0.97…

Q: What is the specific heat of a 88.51 g piece of an unknown metal that exhibits a 45.2°C temperature…

A: The amount of heat required to increase the temperature of one kilo gram of a substance by one…

Q: The specific heat of an unknown metal is calculated to be 3.74 J/g °C. What is the mass of the…

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Q: A strip of aluminum weighing 0.789 g is heated from 26.1 C to 45.8 C. What is the amount of heat…

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Q: A block of unknown metal requires 50 kJ of heat to raise in temperature from 40 deg C to 50 deg C.…

A: Given Q1 = 50 KJ ∆T= final temperature - initial temperature      =  50- 40       = 10 Now by using…

Q: 2NaHSO4(s)  ----> Na2SO4(s)  + H2O(g) + SO3(g)   ΔH = -231.3 kJ If 3.60 grams of Na2SO4(s) is…

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Q: How much heat is released when a 260.0 g plate of copper tools from 5.30 x 10^2K to 20.0C?

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

Q: A 44.3 g sample of water at 100.00 °C (specific heat of water = 4.184J/g.°C) was placed in an…

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Q: A bomb calorimeter, or a constant volume calorimeter, is a device often used to determine the heat…

A: Given, Mass of quinizarin - 0.6677 g. Temperature change(dT) - 26.86 oC to 29.43 oC =  Mass of water…

Q: Q1:- Find the external work done by the system in kcal, when 10 kcal of heat is supplied to the…

A: ✓The First Law of Thermodynamics states that heat is a form of energy, and thermodynamic processes…

Q: A sample of 24.9 g of ammonium nitrate, NH4N03, was dissolved in 121.3g of water in a coffee cup…

A: Mass of sample (ammonium nitrate) = 24.9 gram Mass of water = 121.3 gram Specific heat of solution =…

Q: -A block of iron metal weighing 5.00 grams with a temperature of 75.0°C was immersed in a beaker…

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Q: How many joules of energy are required to heat 2.5 kg water from 18.5 to 55.0 Celsius?

A: To calculate the energy required to raise the temperature of any given substance, is calculated as-…

Q: A coffee cup calorimeter, including that water it contains, has a heat capacity of 425 J/K, and is…

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Q: Solve this

A: The heat capacity is the ratio of the energy supplied in the form of heat to the rise in the…

Q: 1. What is the mass of iron if 17.10 joules are added and the temperature moves from 15 oC to 28 oC?…

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Q: Suppose you heat a metal object with a mass of 31.8 g to 96.8 °C and transfer it to a calorimeter…

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Q: A coffee-cup calorimeter contains 70 mL of water with an initial temperature of 24.9°C. An unknown…

A: The heat absorbed (q) by the water can be obtained by the multiplication of mass (m) of water with…

Q: In the laboratory a "coffee cup" calorimeter, or constant pressure calorimeter, is frequently used…

A: CALCULATION OF SPECIFIC HEAT CAPACITY

Q: What are the internal energy changes, ∆E, if a system; (a.) absorbs 67 J of heat and does 67 J…

A: Answer to all the parts are given below.

Q: Determine the specific heat capacity of 250.0g of an unknown metal. When the metal absorbs 18.1 kJ…

A: a) Given that: mass of metal = 250.0g initial temperature, Ti = 23.1°C final temperature, Tf =…

Q: What is the specific heat of a 72.01 g piece of an unknown metal that exhibits a 45.2°C temperature…

A: Given data is  mass of sample = 72.01 g Temperature = 45.2 oC Heat absorbed = 1870 J Formula used…

Q: Question attached

A: Given : Mass of water = 35.5 g Mass of metal = 9.323 g Initial temperature of water = 19.42 oC Final…

Q: coffee-cup calorimeter contains 60 mL of water with an initial temperature of 24.9°C. An unknown…

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Q: If 0.066 mol of hydrochloric acid (HCl)  is mixed with 0.066 mol of sodium hydroxide (NaOH)  in a…

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Q: 1. The temperature of 13.5g of water increased from 15.0°C to 37.0°C. How much heat was absorbed by…

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

Q: When a system gives off 100J of heat and the surroundings does 50J of work on the system, what is…

A: Hello. Since your question has multiple parts, we will solve first question for you. If you want…

Q: A 90.0 g piece of metal, initially at 98.6°C, is placed into 120.0 g of water initially at 24.3°C.…

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

Q: How many kilojoules of heat are required to raise the temperature of 456 g of aluminum from 13.0°C…

A: The solution is as follows :

Q: A 1.00g sample of octane is burned in a calorimeter that contains 1.20kg of water. The temperature…

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Q: A 32 gram piece of metal is heated to a temeprature of 100 degrees celcius and placed into water.…

A: The relationship between heat ( q ) , specific heat ( s ) and change in temperature ( ∆T ) is q =…

Q: A 25.0g piece of aluminum sits in a room and cools.  It loses 4300.0 J of heat. If the initial…

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Q: A system releases 740J of heat while doing 123J of work. What is the value of AU (in J)?

A: A system releases 740J of heat while doing 123J of work. What is the value of∆U (in J)?

Q: Chargers for cell phones get warm while they are being used. Some of the energy they are using is…

A: Given  Energy needed for charging = 235 J  Energy wasted as heat = 345 J

Q: When 2 moles of N2(g) react with O2(g) to form N,0(g) according to the following equation, 164 kJ of…

A: A reaction is said to be exothermic when during the reaction the heat is released while when the…

Q: 105 mL of H2 O is initially at room temperature (22.0° C). A chilled steel rod at 2.0° C is placed…

A: The heat lost by water is given by  Q = mw Cw ΔTw  where mw = mass of water = density of water X…

Q: A piece of unknown metal with a mass of 23.78 g is heated in boiling water to 97.4°C and then…

A: Specific heat  of substance defined as the heat capacity  of  sample of  substance  is divided by…

Q: How much heat is given off when an 869 g iron (specific heat = 0.45 J/g. oC) bar cools from 94oC to…

A: For iron :  Mass , m = 869 g  Specific heat, C = 0.45 J/ g ℃ Initial Temperature, Ti = 94℃  Final…

Q: A bomb calorimeter, or a constant volume calorimeter, is a device often used to determine the heat…

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Q: In an experiment, 26.5 g of metal was heated to 98.0°C and then quickly transferred to 150.0 g of…

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

A: Specific heat: Heat requires for system to raise temperature of substance by 1 degree Celsius or 1…

Q: In the laboratory a "coffee cup" calorimeter, or constant pressure calorimeter, is frequently used…

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Q: A sample of lead pellets with a mass of 26.47 g that has an initial temperature of 89.98 degrees C…

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Q: A lead fishing weight has a mass of 57 g. The weight absorbs 146 cal of heat. If its initial…

A: The specific heat of a compound suggests the amount of heat needed for per unit mass of the compound…

Q: When 25.0 g hydrogen gas react according to the following reaction, how many kJ of heat are released…

A: In this question, we have to find out the correct answer of given problem by the help of the…

Q: How much energy does it take to heat 15.6 grams of aluminum metal from 25°C to 150.°C? The specific…

A: Mass of Aluminum = 15.6 grams Initial Temperature (Ti) = 25°C Final Temperature (Tf) = 150°C…