A sample of lead is heated and placed in a 151.0 g container of water at 22.0 oC.  The final temperature of the lead and water is 44.0 oC.  Assuming no heat loss, what amount of heat released from the lead sample?

Q: Calculate the heat released, in Joules, when cooling a 350.0 g of aluminum bar from 70.0 degrees to…

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Q: 5. Fluorine (F2) and Chlorine (Cl2) both exist as diatomic molecules. Fluorine has a boiling point…

A: The potential energy curve for the Cl2 and F2 molecules is as follows:   The bond dissociation…

Q: Calculate the amount of heat generated (in kJ) from 0.100 g of hydrogen reacting with 0.900 g of…

A: A numerical problem based on mole concept, which is to be accomplished.

Q: A piece of silver releases 202.8 J of heat while cooling 65°C. Calculate the mass of the sample if…

A: Given that, a piece of silver releases 202.8 J of heat while cooling 65 oC temperature. The specific…

Q: Calculate the amount of heat generated (in kJ) from 0.100 g of hydrogen reacting with 0.600 g of…

A: Given that  amount of H2 = 0.100 gm  amount of O2 = 0.600 gm amount of heat released for water = 242…

Q: The sum of the heats of fusion and vaporization of that substance at the same temperature. A. Heat…

A: Heat is a form of energy which can be transferred between any substances or systems which are…

Q: How many joules of heat energy are required to heat 25.0 grams ethyl alcohol from prevailing room…

A: Given : Mass of ethyl alcohol = 25.0 g Initial temperature of ethyl alcohol = 22.5 oC Final…

Q: how much heat is required to heat 38 g of steam form 115 C to 120 C?

A: A numerical problem based on heat energy required, which is to be accomplished.

Q: The specific heat capacity of liquid water is 4.18 J/g-K. How many joules of heat are needed to…

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Q: Calculate the heat capacity, in joules per degree, of 28.4 g of water. Specific heat of water is…

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Q: when hydrogen and oxygen are burned to produce water. heat is produced at 58 kcal mol of water. A…

A: We are given with the heat produced for 6.02×10-23 molecules = 58 KCal. So , to find heat produced…

Q: How much heat is needed to warm 250 g of water from 22°C to near its boiling point, 98°C? The…

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Q: A 466 g sample of water is heated from 8.50 degrees C to 74.60 degrees C.  Calculate the amount of…

A: Interpretation-  To determine the amount of heat absorbed (in kilojoules ) when 466 g sample of…

Q: If 14.5 kJ of heat were added to 485 g of liquid water, what would be the increase in temperature?…

A: Concept introduction- Specific heat- It is the amount of heat required to raise the temperature of…

Q: The specific heat of nickel is 0.444 J/g 0C. If 50 J of heat is added to 32.3 g sample of nickel at…

A: Given data  The specific heat of nickel, csp =  0.444 J/g 0C. The amount of heat added, q = 50 J…

Q: How much heat is released when 30 g of water at 96°C cools to 25°C? The specific heat of water is…

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Q: Calculate the amount of heat absorbed by 23.0 g of water when its temperature is raised from 31.0°C…

A: Answer

Q: The specific heat of nickel is 0.444 J/g 0C. If 50 J of heat is added to 32.3 g sample of nickel at…

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Q: What mass of water can be heated from 10.0 °C to 75.0 °C using 95.1 kJ of heat?

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Q: How much heat is absorbed in kJ by 750 grams of water as it is heated from 25oC to 96oC? Specific…

A: Given- mass of the water= 750 grams  heated from 25oC to 96oC Specific heat of water= 4.186 J/goC

Q: How much heat is released when 60.5 grams of water at 60.0 degrees C changes to water at 12.5…

A: The question is about calculating the amount of heat released when 60.5 grams of Water at 60oC…

Q: If 14.5 kJ of heat were added to 485 g of liquid water, how much would its temperature increase?…

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Q: How much heat is required to raise the temperature of 789g of liquid ammonia, form 25°C to 82.2°C?

A: Given: The mass of liquid ammonia is 789 g. The initial temperature is 25oC. The final temperature…

Q: What is specific heat capacity? A. The energy needed to change the temperature of a substance B. The…

A: specific heat capacity is defined as the amount of heat required to raise the temperature of a unit…

Q: How many joules of energy are released when 45.0 g of water cools from 18.0 ºC to 7.0 ºC?

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Q: What would be the final temperature if 55.0g of H2O at 30 degrees C is added to 45.0g of H2O at 95…

A: The amount of energy for a particular amount of matter present at specific temperature with specific…

Q: Why does a gas have more potential energy than a liquid? O a O b O Od с Potential energy increases…

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Q: How much heat is gained when the temperature of 288 g of liquid water is raised rom 100 °C to 125…

A: We have to tell which option is correct from given choices of options by finding specific heat…

Q: If 10 g of water at 52oC and 25 g of water at 10oC were mixed in an insulated container, what will…

A: Given: Specific heat of water = 4.184 J/g°C

Q: A pure sample of Substance S is put into an evacuated flask. The flask is then heated steadily and…

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Q: Calculate the amount of heat required to raise the tempature of an 91 g sample of water from 39C to…

A: Given: Specific heat of water = 4.18 J/g⋅∘C. Mass of water = 91 g. Initial temperature (T1) = 39 ∘C…

Q: Given that a 10.0 g sample of ice melts and then the resultant water proceeds to warm to 20.0 C,…

A: Given mass of ice = 10g Process 1: conversion of ice at 0 degree tp water at 0 degree The total heat…

Q: What mass of water

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Q: If 15.5 J of heat are removed from 14.6 g of mercury (specific heat = 0.142 J/g oC) at 25.0 oC, what…

A: From the formula of specific heat capacity we can determine the final temerature of mercury sample .

Q: How much heat is put into 100g of water to raise temperature from 25.0 to 75.0°C? The specific heat…

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Q: How much heat would need to be removed to cool 81.5 g of water from 25.6°C to -10.7°C?

A: Given that:  Mass of water (m) = 81.5 g  Initial temperature (T1) = 25.6°C Final temperature (T2) =…

Q: How many kilojoules of heat are absorbed when 2.00 L of water is heated from 12.5°C to 93.5°C?

A: Mass= density×volume  Mass= 1×0.002=0.002gm Now  Q=mc∆T Q= 0.002×4.18×(93.5-12.5) Q= 0.067×10-6kj

Q: If 40.0 kJ of energy is absorbed by 500.0 g of water at 10.0 oC, then what is final temperature of…

A: Q = m . s . (T2-T1)

Q: In joules, how much heat is released when 44.0 g of Ag cools from 199. to 129

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Q: Calculate the mass of liquid water (in grams) at 100 °C that can be converted to vapor when 2400 J…

A: Calculate the number of moles of liquid water which can be converted into vapor form on absorption…

Q: How many joules of heat are required to heat 68 g of lead from 20.4 oC to 74.8 oC?

A: Given, Mass of lead = 68g. Initial temperature = 20.40C. Final temperature = 74.80C.

Q: The specific heat of water is 4.184J/g-°C. How many joules of heat will be  removed from 2.00 g of…

A: Given: Decrease in the temperature of water = 20.0 oC And mass of water = 2.00 g

Q: A copper block of volume 1 L is heat treated at 500ºC and now cooled in a 200-L oil bath initially…

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Q: The specific heat of zinc is 0.096 cal/goC.  Determine the amount of heat energy required to raise…

A: Applying formula Q= mc∆t

Q: How much heat would be required to raise 499 g of water from 111 °C to 251 °C? (You need to know…

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Q: A 466 g of water is heated from 8.50C to 74.60C. Calculate the amount of heat absorbed (in…

A: Given,  Mass of water = 466 g  Heat absorbed = ?

Q: The amount pf heat required to raise the temperature of a given amount of substance b by 1 degree…

A: To solve this problem we have to know about the given terms

Q: What is formed when gas is enclosed in a chamber then liquified under very high pressure? * What…

A: Answer-1 When a gas is liquefied in a closed chamber under very high pressure, particles will come…

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

A: GIVEN: Reaction: C₆H₆(l) → 3 C₂H₂(g)          ∆H = 630 kJ To Solve: Grams of C₆H₆=?

Q: A 20 g sample of ice at -10 °C is mixed with 100 g water at 80 °C. Calculate the final temperature…

A: Heat required by ice to convert into water at 0 oC = ms(Tf-Ti) + mLf…