Oh no! Billy forgot that his calorimeter should have 2 coffee cups to contain all the heat. If Billy dropped a 25.0 g piece of solid iron (Cs = 0.449 J/g°C) at 398 K in a coffee cup containing 25.0 mL of water at 298K and because of his mistake, 21% of the heat that should be transferred from the iron to the water is lost to the atmosphere, calculate the final temperature of the iron water mixture?

Q: When 151.0 mL of water at 26.0°C is mixed with 46.0 mL of water at 85.0°C, what is the final…

A: Aplly calorimetry principle Q= mc∆T  Heat flow from high Temperature to low temperature.

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

A: The heat released or gained by a substance is given as: q=mc∆T

Q: ou place 300.0 grams of water in a coffee cup calorimeter and the temperature of the water is 22.3℃.…

A: answer = 23.65 0C

Q: Calculate the heat that must be supplied to a 500.0 g stainless steel vessel containing 450.0 g of…

A: The specific heat can be defined as the amount of heat per unit mass that is needed to raise the…

Q: Consider the following thermochemical equation for the combustion of acetone, C3H6OC3H6O, the main…

A: The given reaction, C3H6O(l) + 4O2(g)→3CO2(g) + 3H2O(g) Volume of acetone = 183 mL Density of…

Q: A 20.8 g piece of metal has a specific heat of 0.52 J/g°C. It was heated to 9.5°C then placed inside…

A: Formula used :  -q(lost) = q(gained) If no heat is lost to the surrounding.

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 0.86kg sample…

A:

Q: 250.0 g of hot coffee at 95.0 °C are placed in a 0.2000 kg mug at 20.0 °C. The specific heat of the…

A: We have to calculate the final temperature of the system after hot coffee is placed in the mug

Q: The specific heat of toluene, C7H8, is 1.13 J/g-K. How many joules of heat are needed to raise the…

A:

Q: When 8 grams of salicylic acid, C7H6O3, burns in a bomb calorimeter, the temperature increases from…

A: Interpretation- To determine the heat given off when 7 moles of salicylic acid is burned - Concept-…

Q: When 116.0 mL of water at 26.0°C is mixed with 46.0 mL of water at 85.0°C, what is the final…

A: As per "Principle of Calorimetry", when any hot body gets mixed with cold body then the cold body…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 236.0 mg sample…

A: We know that q = mc∆T ....(1)  q = heat required = 3.7 J, ∆T = increase in temperature = 11.6 °C…

Q: How many kilojoules (kJ) of heat are needed to raise the temperature of a 50.0 g piece of silver…

A: Given, The amount of heat in KJ, are needed to raise the temperature of a 50.0 g piece of silver…

Q: A 63.5-g piece of an unknown metal is heated to 92.40°C and quickly added to 100.0 g of water in a…

A: Given, mass of unknown metal, mu=63.5 g initial temperature of metal, Tiu=92.40°C mass of water,…

Q: You pour a cup of tea that has a volume of 215.73 mL and is initially 91.06 °C. You place a silver…

A: Given , Volume of tea= 215.73 mL Initial temperature, Ti=91.06°C Specific heat of tea Ct= 4.186…

Q: A student is trying to determine some information about a metal sphere. He weighs a piece of metal…

A: Given: Mass of metal = 8.25 g. Initial temperature of metal = 24.5 oC Final temperature of metal =…

Q: A student heats 68.15 grams of silver to 98.73 °C and then drops it into a cup containing 78.21…

A: All the information is given in question  Mass of silver and temperature  Mas software water and…

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:

Q: During a reaction, the temperature of the solution in a coffee cup calorimeter increased by 8.6…

A: Heat of reaction (qreaction ) is given by the formula  q = ms(dT) where m = mass of sample s =…

Q: You want to quickly set up a temporary water bath in your lab with a volume of 10.0 L and a…

A:

Q: A 5.0 g piece of metal is heated to 100 degrees Celsius, then placed in a beaker containing 20.0 g…

A: Given:Specific heat of water = 4.18 J/g. oCMass of metal = 5.0 gMass of water = 20.0 g.Initial…

Q: 5) A 120.0-g piece of metal at 60.0 °C is placed in 150 g of water at 19.0 °C contained in a…

A: Calculating the heat released or absorbed for the process:            ......(1) In a system, the…

Q: A 500-mL bottle of water and a 2-L bottle of water were both at room temperature. Then they were…

A: Heat gained or lost,  Q = mCPΔTFrom the above equation it is clear that the heat lost or gained…

Q: 5. Phosphorus trichloride, PCI3, is a compound used in the manufacture of pesticides and gasoline…

A: The relationship between heat energy , mass of substance and change in temperature is  Q = mC∆T  Q =…

Q: A student heats 61.27 grams of silver to 97.71 °C and then drops it into a cup containing 82.16…

A:

Q: 79.8 grams of a metal that is at temperature 92.39 oC is placed in 186.3 mL of water at 19.79 oC.…

A: Here use thermal equilibrium concept. Here final temperature is 24.68 degree celcius, So metal…

Q: If 0.067 mol of hydrochloric acid  (HCl)  is mixed with 0.067 mol of sodium hydroxide  (NaOH)  in a…

A:

Q: In addition to calculating specific heat capacities, some calorimeters can be used to determine how…

A: A) The number of Joules in 1 calorie = 4.184 J.

Q: chemistry professor has a cup of coffee containing 50.0 mL of room temperature coffee at 25.0 °C.…

A: V1= 50ml and density = 1g/ml So mass(m1)= density * volume                   m1 =   (1g/ml)*(50ml)…

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: We can use the formula : q=ms∆t We are Given: ∆T for water = 34.00-24.30 = 9.70 oC ∆T for metal =…

Q: The specific heat of toluene, C7H8, is 1.13 J/g-K. How many joules of heat are needed to raise the…

A: Given :-  Specific heat of toluene = 1.13 J/g.K  Mass of toluene = 40.0 g  Initial temperature =…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 794.0 g sample…

A:

Q: A 116.21gram sample of gold is initially at 120.2°C. It loses 0.393kJ of heat to its surroundings.…

A:

Q: . A car performs 6000 joules of work on its surroundings and releases 8000 joules of heat. How much…

A: (1) According to first law of thermodynamics, internal energy change, work and heat related with…

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

A:

Q: What is the final temperature (in degrees Celsius) when 1940 J of energy are put into a 250…

A: We have to predict the final temperature.

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 1.26 kg sample…

A:

Q: 2. An 88.5 gram piece of iron initially at 78.8°C is place in a beaker containing 244 grams of water…

A:

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: The heat lost by the hot metal equal to the heat gained by the water. Both processes are temperature…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a  1.10kg…

A: Using the relation Q=mCΔT we can find specific heat capacity of substance.

Q: A student heats a 5.0 g sample of an unknown metal to a temperature of 211 °C, and then drops the…

A: Given, Mass of sample metal = 5.0 g Mass of water in calorimeter = 66.0 g The initial temperature of…

Q: You want to quickly set up a temporary water bath in your lab with a volume of 10.0 L and a…

A:

Q: A 43.9 g spoon made of pure silver (c = 0.235 J/g C) at 20.1 celcius is used to stir an 8 oz. (240…

A:

Q: If 0.064 mol of hydrochloric acid (HCl) is mixed with 0.064 mol of sodium hydroxide (NaOH) in a…

A:

Q: A 20.94 g sample of a metal is heated to 99.4°C in a hot water bath until thermal equilibrium is…

A:

Q: Calculate the specific heat of water if 188.3 J is required to raise the temperature of 3.000 g of…

A:

Q: The density of aluminum is 2.7 g/cm3 and its specific heat is 0.9 J/g.0. A piece of 9.7 cm3 aluminum…

A: Recall the following relation according to law of calorimetry          Q=mC×∆tHere Q is amount of…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 0.57 kg sample…

A:

Q: The burning of 1.5 g of vegetable cause the temperature of 58.18 g of water and a soda can…

A: m = 58.18 g C = 4.18 J/g. 0C. Ti = 21.5 0C Tf = 28.1 0C

Q: A glass containing 200. g of H2O at 20C was placed in a refrigerator. The water loses 11.7 kJ as it…

A: Consider the given information is as follows; Mass of water = 200. g Heat loses (q) = -11.7…