12. A 25.0 g piece of iron (c 0.451 J/goC ) initially at 21.00C absorbs 3100...

Question

Question

Answer 1

Answer #1

m= 25.09, C=0.4517g.•c Ti = 21.0°C = 294 K , 923100), Tz qe mCAT 3100= 25 X0.451(T2- 21.00 T2 = 295.9°C

Answer 2

Similar Homework Help Questions

A sample of 2.22 moles of ethanol (C2H5OH) is initially at 25.0°C. If the sample absorbs...

A sample of 2.22 moles of ethanol (C2H5OH) is initially at 25.0°C. If the sample absorbs 5.94 kJ of heat, what is the final temperature of the ethanol? The specific heat capacity of ethanol is 2.46 J/g°C. Select one: a. 48.6°C b. 1120°C c. 26.1°C d. 25.0°C e. None of the above
help A 22.9 g sample of iron absorbs 155 J of heat, upon which the temperature...

help A 22.9 g sample of iron absorbs 155 J of heat, upon which the temperature of the sample increases from 23.9°C to 38.9 °C. What is the specific heat (s) of iron? Hint: s = (m X AT) O 0.451 J/g-°C O 102 J/g-°C 53,200 J/g-°C O 0.451 J/g-°C 237 J/g-90
A 350.0 gram sample of copper is initially at 25.0C. If the sample absorbs 12.50 kJ...

A 350.0 gram sample of copper is initially at 25.0C. If the sample absorbs 12.50 kJ of heat from its surroundings, what is its final temperature? cs(Cu) = 0.386 J/g°C

A 150.0 g block of iron absorbs 750.0 J of thermal energy. The specific heat capacity...

A 150.0 g block of iron absorbs 750.0 J of thermal energy. The specific heat capacity of iron is 0.449 J/(g·◦C). The initial temperature of the block is 20.0 ◦C. What is its final temperature? (A) 111.3 ◦C (B) 31.1 ◦C (C) 22.2 ◦C (D) 20.4 ◦C (E) 8.86 ◦C
molar 7. How many grams of CO 28.01 /mol) must be bumed to produce 225 kJ...

molar 7. How many grams of CO 28.01 /mol) must be bumed to produce 225 kJ of heat urma 2006 +020 200260 AH = -566 kJ c) 2238 ite a) 0.398 8 b) 0.795 g c) 2.52 g d) 11.1 g 3. Calculate the mass of excess reactant remaining after 4.50 mol of LHCO (67.96 R/mol) and 8.50 mol of H2504 (98.08 g/mol) reacted according to the equation shown below. 2LHCO3 + H2SO4 - Li2SO4 + 2H20 + 2002 e)...
A 10.0 g piece of iron (C = 0.443 J/g oC) initially at 97.6 oC is...

A 10.0 g piece of iron (C = 0.443 J/g oC) initially at 97.6 oC is placed in 50.0 g of water (C = 4.184 J/g oC) initially at 22.3 oC in an insulated container. The system is then allowed to come to thermal equilibrium. Assuming no heat flow to or from the surroundings, calculate the final temperature of the metal and water the change in entropy for the metal the change in entropy for the water the change in...

If a 105 g piece of aluminum (specific heat 216 cal/g°C) at 25.0°C absorbs 542 cal,...

If a 105 g piece of aluminum (specific heat 216 cal/g°C) at 25.0°C absorbs 542 cal, what will its new temperature be? Use the correct number of significant figures. f 10.0 g of NH NO, added to 50.0 mL of water cause a 14.3°C decrease in temperature, what is the heat of solution for ammonium nitrate per gram? (Assume the specific heat for the solution is 4.184 J/g °C.)
L JU" 10- 32) 32) A piece of iron (mass = 25.0 g) at 398 K...

L JU" 10- 32) 32) A piece of iron (mass = 25.0 g) at 398 K is placed in a styrofoam coffee cup containing 250 mL of water at 298 K Assuming that no heat is lost to the cup or the surroundings, what will the final temperature of the water be? The specific heat capacity of iron = 0.449 gºC and water = 4.18 JgPC A) 287 K B) 388 K C) 348 K D) 325K E) 308 K
3. A75.0 g piece of copper metal is initially at 100°C. It is dropped into a...

3. A75.0 g piece of copper metal is initially at 100°C. It is dropped into a coffee cup calorimeter containing 75.0 g of water a a rature of 20.0°c. Assuming that the only heat exchange is between the copper metal and the water (no heat is given to the calorimeter), what is the final temperature of the water. Specific heat of copper 0.387 J/goC

1/2 H2(g) + 1/2012(g) - HCl(g) Question 18 (1 point) A piece of iron (mass =...

1/2 H2(g) + 1/2012(g) - HCl(g) Question 18 (1 point) A piece of iron (mass = 25.0 g) at 398 K is placed in a styrofoam coffee cup containing 25.0 mL of water at 298 K. Assuming that no heat is lost to the cup or the surroundings, what will the final temperature of the water be? The specific heat capacity of iron = 0.449 J/gºC and water = 4.18 J/gºC. 308 K 348 K 325 K 287 K 388...