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October 24, 2014

Search: How much heat is required to warm 122 g of water by 23.0 degrees Celcius?

Number of results: 57,505

chemistry
What quantity of heat is required to warm 53.7 g of liquid water from 0C to 100C?
March 29, 2010 by rachel

Physics
How much heat is added to a 10.0 g of ice at -20.0 degrees Celsius to convert it to steam at 120.0 degrees Celsius? compute and add the following heats: heat to heat ice from -20C to 0C heat to melt ice at 0C Heat to heat water from 0 to 100C heat to convert water to steam at ...
March 5, 2007 by Marie

physics
how much heat is required to vaporize 7 grams of ice initially at 0 degrees celsius when the latent fusion of ice is 80 cal/g, the vaporization of water is 540 cal/g, and the specific heat of water is 1 cal/(g x C)?
February 19, 2010 by elisabeth

Chemistry
1. How much heat is absorbed when 63.7g H(small 2)O [water](l) at 100 degrees C and 101.3 kPa is converted to steam at 100 degrees C? Express your answer in kJ. Is there an equation? 2.How much heat (in kJ) is released when 0.677 mol NaOH(s) is dissolved in water? (Steps?) ...
May 12, 2010 by Anonymous

chemistry
A student used 6.3 x 10^3 J to heat up 50.0g of porcelain from 25.0 degrees Celcius to 45.0 degrees Celcius. What is the specific heat of porcelain?
December 1, 2011 by Kdot

Chemistry
How much heat is required to raise the temperature of a 65-g sample of water from 32 degrees celsius to 65 degrees celsius
February 11, 2012 by Lisa

math chem
Global warming refers to the rise in average global temperature due to the increased concentration of certain gases, called greenhouse gases, in our atmosphere. Earths oceans, because of their high heat capacity, can absorb heat and therefore act to slow down global warming...
January 24, 2011 by Anonymous

Chemistry
80.0 mL of water is initially at room temperature (22degrees C). A chilled steel rod at 2 degrees C is placed in the water. If the final temperature of the system is 21.2 degrees C, what is the mass of the steel bar? Specific heat of water = 4.18J/g(degreesC) Specific heat of ...
October 22, 2010 by Ellen

physics
You have a bathtub containing 100 ml of water at 25 degrees celcius. How long must you stir the water to bring the temperature of the water to 100 degrees celcius?
March 24, 2010 by jonathan

Chemistry
A quantity of ice at 0.0 degrees C was added to 33.6 of water at 21.0 degree C to give water at 0.0 degrees C. How much ice was added? The heat of fusion of water is 6.01 kJ/mol and the specific heat is 4.18 J/(g * degrees C) q = mass x specific heat x delta T? q = mass x heat...
February 4, 2008 by Lauren

Chemistry
How much heat is required to bring 1.0kg of water from 25 degrees celsius to 99 degrees celsius?
October 26, 2012 by Kayla

Chemistry
How much energy is required to heat 36.9g of ice at 0 degrees celsius to water at 0 degrees celsius?
March 2, 2013 by Maria

Chemistry
The heat of fusion for water is 80cal/g. The specific heat of liquid water is 1.00cal/g. How many calories of heat are released when 20g of water at 30 degrees is cooled to 0 degrees and frozen to ice at 0 degrees?
July 19, 2010 by Leah

Chemistry
A 45-kg sample of water absorbs 345 kJ of heat. If the water was initially at 22.1 degrees celcius, what was the final temperature?
September 30, 2012 by Anonymous

Chemistry
Given: solubility (g/100g H2O) temp degrees celcius KBR 20 65 40 80 60 90 80 100 100 110 A solution containing 10.5g of KBr in 10g of H2O at 100 degrees celcius is cooled to 40 degrees celcius. A)calculate the g/100g H2O of KBr B)is the solution saturated at 100 degrees ...
May 11, 2011 by Curlyqty

Lauren
The specific heat of water is at 4.184J/g * degree C. How much heat is evolved, or absorbed, when the temperature of 9.00 mol of liquid water cools from 38 degrees C to 28 degrees C? How do I start this problem
November 16, 2007 by Chemistry

chem
How much heat is required to heat 0.1 g of ice at −30 degrees C to steam at 100 degrees C
March 1, 2012 by sammy

chem
The specific heat of silver is 0.237 J/goC Its melting point is 961oC . Its heat of fusion is 11 J/g. How much heat (in J) is needed to change 17.5 g of silver from solid at 25oC to liquid at 961oC ? Add the heat required to warm the silver from room temp to the mp. Then add ...
October 31, 2006 by mary

Chem
The specific heat capacity of aluminum is .89 J/y degrees C. How much heat is required to change the temp of 1500g aluminum pan from 25 degrees C to 100 degrees C?
October 17, 2010 by Emily

Chem
The specific heat capacity of aluminum is .89 J/y degrees C. How much heat is required to change the temp of 1500g aluminum pan from 25 degrees C to 100 degrees C?
October 17, 2010 by Emily

Chemistry 106 ch 11
Calculate the heat released when 73.5 g of steam at 122.0 C is converted to water at 39.0C. Assume that the specific heat of water is 4.184 J/g C, the specific heat of steam is 1.99 J/g C, and change in heat vap =40.79 kJ/mol for water.
February 15, 2014 by alex

Chemistry
A quantity of ice at 0.0 degrees C was added to 33.6 of water at 21.0 degree C to give water at 0.0 degrees C. How much ice was added? The heat of fusion of water is 6.01 kJ/mol and the specific heat is 4.18 J/(g * degrees C) q = mass x specific heat x delta T? q = mass x heat...
February 4, 2008 by Lauren

chemistry
How much heat (in Kj ) is required to warm 10.0g of ice, initially at -11.0 C, to steam at 112.0 C?
April 20, 2012 by haley

Chemistry
How much heat (in Kj ) is required to warm 10.0g of ice, initially at -11.0 C, to steam at 112.0 C?
April 20, 2012 by Haley

ap chemistry!! help!!
some solutes have large heats of solution, and care should be taken in preparing solutions of these substances. The heat evolved when sodium hydroxide dissolves is 44.5 KJ/mol. What is the final temperature of the water, originally at 20.0 degrees Celcius. used to prepare 500....
January 9, 2007 by john

Science
If you wish to warm 100 kg of water by 20 C for your bath, show that 8370 kJ of heat is required.?
March 13, 2014 by Reggie

Physics
If you wish to warm 100 kg of water by 20 C for your bath, show that 8370 kJ of heat is required.?
March 13, 2014 by Reggie

Physics Heat
1) Peter is heating water on the stove to boil eggs for a picnic. How much heat is required to raise the temperature of his 10.0-kg vat of water from 20.0℃ to 100.0℃? Formula>> Q=mTcp 2)Under the spreading chestnut tree of the village blacksmith dunks red-hot...
April 10, 2013 by Isis

chemistry
How much heat energy in KJ is evolved by a reaction in a calorimeter in which the temperature of the calorimeter and water increases from 20.91 degrees C to 26.45 degrees C? The bomb has a heat capacity of 469 J/degrees . The Calorimeter contaains 792 grams of water.
December 8, 2010 by Brittany

Science check
I was wondering if someone could check the problems for me? Thanks I can go back and show work if needed..this was just easier to type out. 1)An object has a mass of 615 grams and a volume of 105cm3.What is the density of the object? answer 5.86 gm/cm3 2) A player uses a ...
May 29, 2007 by Anonymous

Chemistry
A quantity of ice at 0.0 degrees C was added to 33.6 of water at 21.0 degree C to give water at 0.0 degrees C. How much ice was added? The heat of fusion of water is 6.01 kJ/mol and the specific heat is 4.18 J/(g * degrees C)
February 1, 2008 by Lauren

science
jay heated 120mL of water that was 20 degrees celsius to 80 degrees celsius. a)how much did the temperature of water change? b) how much heat did jay add to the water? c) if jay used a liquid that was not water, the specific heat would not equal:(circle best answer) 0cal/g/...
October 14, 2012 by Johna

chemistry
How much heat is required to convert 0.4 kilograms of ice at 0 degrees celsius to water at the same temperature?
March 1, 2011 by Anonymous

CHEMISTRY
I put down all the info that I found but I cant figure out the questions 1 & 2 at the bottom!! Empty Calorimeter- 11.6 g Room temp - 21 degrees celcius Three different experiments of 50mL 1(M) HCl reacts with 0.15 g Mg, 0.25g Mg, and 0.35g Mg respectively. The maximum ...
November 8, 2010 by Anonymous

algebra
At a crime scene, police officers find a murder victim in a tub full of warm water. A thermometer shows that the water temperature is 75 degrees F and the air temperature is 70 degrees F. It is known that most people fill a tub with water at 100 degrees F. Find Newton's Law of...
December 12, 2012 by Andrea

chemistry
the boiling point of water at 735mmHg is 99.073 degrees celcius. What mass of NaCl should be added to 3.11kg water to increase the boiling point to 100.000 degrees celcius? Kb for water = 0.510 K Kg mol-1
October 6, 2010 by Kell

Chemistry
What is the molality of a 0.065M solution of ethyl alcohol in water at 25 degrees Celcius? (Assume the density of the solution at such low conentration is equal to that of water at 25 degrees Celcius, 0.997 g./mL)
March 1, 2011 by Shai

Physics - Heat and phase change
8.94 kJ of energy is available to melt 20 g of ice (initially at 0*C) and subsequently to warm the water. What is the water's final temperature in degrees Celsius?
March 19, 2013 by Jos

Chem 103
a piece of gold is heated to 100 degrees celsius. A piece of copper is chilled in an ice bath to 0 degrees celsius. Both pieces of metal are placed in a beaker containing 150 g of water at 20 degrees celcius. Will the temperature of the water be greater than or less than 20 ...
April 15, 2013 by Anonymous

Chem.
Ethanol has a heat of vaporization of 38.56 KJ/Mol. And a normal boiling point of 78.4 degrees celcius. WHAT is the vapor pressure of ethanol at 18 degrees celcius??
February 10, 2010 by Joseph

Chemistry
7750 J of energy is added to a 325g stone at 24.0 degrees celcius. The temperature increases by 75.0 degrees celcius. What is the specific heat of the stone?
November 27, 2012 by Maryam

Physics
How much heat, expressed in Kwh, is required to raise the temperature of water in a 20,000 gallon pool by 10 degrees C. ?
April 26, 2013 by Wolter

thermochem
A meal is 8000kJ. If all the energy is converted to heat, how much iced water with a temperature of 0 degrees must a person drink to maintain body temperature of 37 degrees? How do I solve this - using the fact that 1mL water by 1 degree is 4.2Joules? Heat gained by water = ...
February 6, 2012 by Cole

algebra
At a crime scene, police officers find a murder victim in a tub full of warm water. A thermometer shows that the water temperature is 75 degrees F and the air temperature is 70 degrees F. It is known that most people fill a tub with water at 100 degrees F. Find Newton's Law of...
December 12, 2012 by Andrea

Physics
How many grams of ice must be added to 100 grams of water at 60 degrees so that its temperature drops to 20 degrees celcius? As far as i know I have to use: (Mass)*(specific heat of water) *(finaltemperature - initial temperature = ??
January 7, 2010 by Jose

chemistry
Can somebody please help me with this question? That'd be great. Thanks! Determine the amount of heat needed in the following: the number of calories to heat 25 grams of water from 22 degrees celcius to 44 degrees celcius. Q= m c deltaTemp = 25g*1cal/gC*(44-22)C =25*22 ...
October 4, 2006 by Pyrgus

Physics
a) Family Smith has already installed PV in their house. Now, they also want to cover their needs for warm water with solar energy. For this, they consider having a solar thermal water heating system. Considering that the need for warm water is 100L/day, the water has to be ...
October 24, 2013 by youlifex

Chemistry
How many joules of heat are lost by 3399kg granite as it cools from 41.7 degrees Celcius to -13.3 degrees Celcius? answer must be in joules not kJ
May 19, 2010 by Ev

Physics
How do I find out how much heat it takes to raise the temperature of 100 grams of aluminum from 50 degrees celcius to 80 degrees celsius. The specific heat is 900j/kg First I did 100*30*900 and it equalled 2,700,000. that seems to high, is it? I then multiplied 100*30*.9 and ...
June 27, 2010 by Carissa

chemistry
The vapor pressure of dichloromethane, CH_2Cl_2, at 0 degrees celcius is 134 mmHg. The normal boiling point of dichloromethane is 40 degrees celcius. Calculate its molar heat of vaporization (in kJ/mol).
January 31, 2010 by jack

College Chemistry
Calculate the heat in joules needed to warm 225g of water from 88.0 degrees Celsius to its boiling point 100.0 degrees Celsius
October 24, 2012 by Alex

Chemistry
what is the final temp of the combination when 50 grams of chromium at 15 degrees celcius is added to 25 milliliters of water at 45 degrees celcius?
August 7, 2010 by Nick

Math
An object is heated to 90 degrees Celcius and is then allowed to cool in a room whose air temperature is 25 degrees celcius. If the temperature of the object is 75 degrees celcius after 10 minutes, when will its temperature be 50 degrees celcius? I have no idea how to do this...
November 21, 2010 by Hannah

Math
An object is heated to 90 degrees Celcius and is then allowed to cool in a room whose air temperature is 25 degrees celcius. If the temperature of the object is 75 degrees celcius after 10 minutes, when will its temperature be 50 degrees celcius? I have no idea how to do this...
November 21, 2010 by Hannah

physics
swimmers often notice that when they start to swim in a still body of water after a hot sunny day the surface water is warm but the deeper water is cold. why this happens?explain. (is it that the heat of the sun can only heat up the surface of the water?) swimmers often feel ...
May 3, 2007 by Pauline

chemistry
you dissolve x in 175g of water to make a saturated solution at 50 degrees celcius. if the solution is cooled to 10 degrees celcius, how many grams of x settle out? (x=15.0 at 50 degrees)
October 13, 2010 by steve

chemistry
how many joules of heat are used in raising temp of 25 g of water from 20 to 35 degrees celcius
March 11, 2010 by jill

chemistry
you have 2.0 grams of water at 0 degrees Celcius. how many kilojules of heat will freez it?
April 30, 2010 by Anonymous

biology
What happens to proteins dissolved in water when you heat it to 100 degrees celcius?
November 4, 2010 by Anonymous

physics
0.2 kg of ice at 0 degrees celcius is mixed with 500g of water at 25 degrees celcius. What is the resulting temperature?
June 22, 2010 by Gibbons

Chemistry
How many grams of ice are needed to cool 250 ml of water from 75 degrees celcius to 5 degrees celcius?
April 12, 2011 by Thao

PHYSICS 102E
1. How much ice at -10 degrees Celsius is required to cool a mixture of 0.1 kg ethyl alcohol and 0.1 kg water from 20 degrees Celsius to 0 degrees Celsius? 2. Find the heat produced by 1 KW heating element in one hour. 3. A 3g lead bullet at 30 degrees Celsius is fired at a ...
December 14, 2008 by Akitsuke

biology
between 5 degrees celcius and ten degrees celcius, which solute shows the greatest change in the amount that can be dissolved in 100 grams of water?
October 10, 2010 by Anonymous

Chemistry
calculate the enthalpy change in delta H foor heating 250 grams of liquid water from 0 degrees celcius to 100 degrees celcius.
February 11, 2011 by Bri

chemistry
Propane gas is used to heat a tank of water. If the tank contains 200 L of water, what mass of propane will be required to raise its temperature from 20 degrees C to 65 degrees C. The heat of combustion for propane is -2220 kJ/mol.
November 4, 2010 by Ray

AP Environmental Science
Consider the following heats, copper: 0.384J/g degrees, glass:0.502J/g degrees, water: 4.18J/g degrees, and lead:0.159J/g. Which substance once warmed, would be more likely to maintain its heat and keep you warm through a long party on a cold night?
October 10, 2012 by Becca

chemistry
what mass of steam intially at 130 degree celcius is needed to warm 200 grams of water in a 100 gram container from 20 to 50 degree celcius
January 20, 2011 by mike

college
In warm climates, drinking water is often cooled by evaporating water from the surfaces of clay pots or canvas bags. How many liters of water may be cooled from 37 C to 24 C by the evaporation of 100 g of water? The heat of vaporization of water is 2.4 kJ/g, and the specific...
October 28, 2010 by Abiola Ajibola

Chemistry
How much energy does it take to convert 750 grams of ice at 0 degrees Celsius to liquid water at 40 degrees Celsius? (Specific Heat of water = 4.18 J/g*C and the heat of fusion = 334 J/g)
May 10, 2012 by Morgan Chemistry

Chemistry
Can someone please explain how to do this problem? I am really confused. Thank you. 3. How much heat does 32.0 grams of water absorb when it is heated from 25.0 degrees Celsius to 80.0 degrees Celsius? q = mass*specific heat water*(Tfinal-Tinitial) = ??. mass is 32.0 g Tfinal...
July 19, 2007 by Amy

chemistry
If the warm water in this experiment is at 98 C, how much heat must be released in order for the temperature of 100. mL of water to decrease to 32C?
October 23, 2008 by Lilit***

physical science
How much energy would be needed to warm 1.5 L of water from 25 C to 50 C? The specific heat capacity of water is 4186 J/kg/C.
February 5, 2013 by Josh

Physical science
How much energy would be needed to warm 1.5 L of water from 0 C to 25 C? The specific heat capacity of water is 4186 J/kg/C.
February 5, 2013 by Josh

Chemistry
How much energy would be needed to turn 183.7 g of Ice at -27 degrees celcius to steam at 135 degrees celcius?
November 15, 2013 by Lindsay

Chemistry
How many joules (J) are needed to increase the temperature of 43.0g of aluminum from 25 degrees celcius to 50 degrees celcius? (Cp of Al=0.90J/g degrees of celcius) I also need the formula, data, and answer.
October 10, 2013 by Jaret

Math
A heat exchanger is used to warm apple cider using steam as the heat source. The cider is heated from an initial temperature of 4C to a final temperature of 65C. The steam enters the heat exchanger as 50% quality steam and exits as water condensate at 85C. Calculate the ...
February 17, 2013 by Paul

science
if the specifc heat of iron = 0.46J/g C,how much heat is needed to warm 50g of iron from 20C to 100C -- I do not know how to make the celcius o above the temperature number my anwswer Q = Mx(delta)TxC Q=50gx80Cx0.46J/gC Q = 1840 Joules Delta = the triangle I do not know how to...
April 25, 2008 by sam

Chemistry
Hey, for chemistry class we are given days in the lab to conduct an experiment, then answer a number of questions that correlate with that experiment and how we can make use of it. This week we looked at the Molar Fusion of Ice and there are some questions i don't quite ...
December 15, 2008 by Cody

Chemistry
the heat of fusion water is 335J/g,the heat of vaporization of water is 2.26kJ/g, the specific heat of water is 4.184J/deg/g. how many grams of ice at 0 degrees could be converted to steam at 100 degrees C by 9,574J
April 27, 2012 by Randy

chem 105
How many liters of , measured at 20 , must be burned to provide enough heat to warm 28.3 of water from 15.5 to 31.3 , assuming that all the heat of combustion is transferred to the water, which has a specific heat of 4.18 ? Recall that .
March 27, 2013 by Anonymous

chemistry
What is the specific heat of a substance if it takes 250 J of heat energy to raise the temperature of a 20 g sample from 20 degrees celsius to 45 degrees celcius?
May 31, 2010 by Toni

Chem II
Sulfur dioxide is produce din enormous amounts for sulfuric acid production. It melts at -73 degrees C and boils at -10 degrees C. Its heat of fusion is 8.619 kJ/mol and its heat of vaporation is 25.73 kJ/mol. The specific heat capacities of the liquid and gas are .995 j/g*K ...
January 18, 2012 by Hailey

chemistry
How much energy does it take to heat 10ml up 30 degrees celcius in kilocalories
May 11, 2011 by Sean

chemistry
how much heat is needed to bring 90.0 grams of aluminum from 25 to 75 degrees celcius?
June 16, 2011 by debbie

physics
A 400 g marble block has a specific heat of 860 J/kg C deg. If the block is placed in 700 ml of water, the marble changes it temperature by 17 Celsius degrees. Since the specific heat of water is known to be 4186 J/kg C deg, what is the temperature change of the water. (The ...
February 19, 2014 by Ann

Chemistry
Compounds like CCL2F2 are known as chloroflourocarbons, or CFCs. These compounds were once widely used as refrigerants but are now being replaced by compounds that are believed to be less harmful to the environment. The heat of vaporization of CCl2F2 is 289J/g. What mass of ...
December 14, 2006 by Jenn

physics
An ice bag containing 0C ice is much more effective in absorbing heat than one containing the same amount of 0C water. (a) How much heat in kcal is required to raise the temperature of 0.700 kg of water from 0C to 27.0C? (b) How much heat is required to first melt 0.700 kg...
July 19, 2013 by Eric

chemistry
A 100.0 ml sample of 0.300 M NaOH is mixed with a 100.0 ml sample of 0.300 M HNO3 in a coffee cup calorimeter. Both solutions were initially at 35.0 degrees celcius; the temperature of the resulting solution was recorded at 37.0 degrees celcius. Determine the delta H (in units...
November 10, 2010 by Kristy

physics
A steam turbine operates between hot and cold reservoir temperatures of 538 degrees celcius and 92.1 degrees celcius respectively. If heat is supplied at a rate of 238 MW, what maximum amount of power could the turbine deliver?
March 27, 2010 by Mark

Chemistry
How much heat (in kJ) is required to warm 12.0g of ice, initially at -12.0C, to steam at 111.0?C The heat capacity of ice is 2.09J/(g*C) and that of steam is 2.01J/(g*C). I got 5.64 but I did something wrong apparently.
November 15, 2012 by NeedHelp

Chemistry
How much heat is required to vaporize 1.00 L of CCl4 at its normal boiling point? The following data are given for CCl4. Normal melting point, -23 degree celcius , normal boiling point, 77 degree celcius density of liquid 1.59 g/mL; ; enthalpy of fusion 3.28 kJ/mol vapor ...
December 8, 2008 by Ashleigh

Physics Hear
1) Peter is heating water on the stove to boil eggs for a picnic. How much heat is required to raise the temperature of his 10.0-kg vat of water from 20.0℃ to 100.0℃? Formula>> Q=mTcp 2)Under the spreading chestnut tree of the village blacksmith dunks red-hot...
April 11, 2013 by Isis

Science
How much energy is released when a 5600-g sample of water cools from 99 degrees C to 28 degrees C. The specific heat capacity of water is 4.18 J/(g*degrees C) Can someone please tell me the steps to do this?
April 22, 2008 by Amanda

chemistry
sample of liquid water at 100 degrees C absorbs 113 kJ of heat. HOw much water will be converted to steam heat vaporization if water is 2.26 kJ/g I just need help with what formula to set this up
July 20, 2011 by LG

chemistry
a 100.00 mL sample of water has an initial temperature of 20.0 degrees C. The water is heated, and after 5 minutes its temperature is 50 degrees C. approximately how much energy was absorbed by the water? (the specific heat of wter is 4.18 J/g. degrees C
September 3, 2011 by kelly

chem
How much energy (in Joules) is required to heat 13.48 g of water from 10.5 oC to 46.2 oC ? Use 4.184 J/goC as the specific heat capacity of water.
March 26, 2012 by emily

chemistry
A 100.0 ml sample of 0.300 M NaOH is mixed with a 100.0 ml sample of 0.300 M HNO3 in a coffee cup calorimeter. Both solutions were initially at 35.0 degrees celcius; the temperature of the resulting solution was recorded at 37.0 degrees celcius. Determine the delta H (in units...
July 12, 2012 by jen

chemistry
How much heat (in ) is required to warm 11.0 of ice, initially at -13.0, to steam at 111.0? The heat capacity of ice is 2.09 and that of steam is 2.01
January 31, 2012 by Anonymous

chemistry 101
How much alcohol must be burned to generate 279kj of heat to warm the water as described in problem 3? (60F to 180F) I've seen where they say the answer is (mass of alcohol)(heat ofcombustion)=279 and you solve for mass. However how am I to know which heat of combustion to use...
April 15, 2012 by Anonymous

Math
An object is heated to 90 degrees Celcius and is then allowed to cool in a room whose air temperature is 25 degrees celcius. If the temperature of the object is 75 degrees celcius after 10 minutes, when will its temperature be 50 degrees celcius?
November 22, 2010 by Hannah

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