9. Substance Mass (g) Initial Temperature(°C) AT (°C) Specific Heat Capacity (J/gx°C) Aluminum 20.0 90. -5.9 0.90 ? Water 40.0 25 6 4.2 ? For an experiment, a 20.0 g piece of Al was placed inside an insulated cup filled with 40.0 g of H20. The data are given in the table above. Assuming no heat is absorbed by the container or the surroundings, which of the following equations provides the correct mathematical relationship for the transfer of heat q between Al and H20?

Q: 15. Įmagine a glassblower drops 6.1 g of glass (specific heat capacity C:= 0.380 J/g.K) into 20.0 g…

A:

Q: Ozone (O3) in the atmosphere can react with nitric oxide (NO): 03 (g) + NO (g) → NO2(g) + 02(g) What…

A: Given: H = -199 kJ/mol S = -4.1 J/K mol T = 25oC

Q: how much nitrogen monoxide is formed if 505 kJ of heat are used in its production? N2(g) + O2(g)…

A: N2(g) + O2(g) ==> 2 NO (g)

Q: A chemist must add 3,352 kJ of heat to 2 mol solid Al2O3 to cause it to break down to form 4 mol…

A: Given: Heat supplied to solid Al2O3 = 3352kJno of moles of Al2O3 taken  = 2molno of mol of Al formed…

Q: A 10. g block of metal is heated to 105.00 °C and then dropped into 25 g of water. The water…

A:

Q: 10. You need a water bath at 37.0 °C. The temperature of the cold tap water is 22.0 °C and the…

A: When water at two different temperatures is mixed, the temperature of cold tap water increases and…

Q: mass

A:

Q: Consider the combustion of liquid CH in oxygen gas to produce carbon dioxide gas and water vapor. In…

A:

Q: A(n) 6.54 mL sample of water is cooled from 39.5°C to 18.4°C. How many joules of energy are absorbed…

A: A question based on thermochemistry that is to be accomplished.

Q: A calorimetry experiment where 5.0 mol of NH4* is reacted with 5.0 mol of CN is conducted in 35.0 g…

A: Calorimetry is used to measure the change in enthalpy during a chemical process. The value of change…

Q: Substance Specific Heat, c (J/g×°C) Water 4.184 Granite 0.803 Mercury 0.140 Silver 0.235 Aluminum…

A: Heat given by Aluminum = heat taken by water

Q: A piece of gold (specific heat of 0.129 J/g oC) at 190 oC is placed in 165 mL of water. The initial…

A: The heat lost by the piece of gold is absorbed by water. The amount of heat absorbed by water can be…

Q: A gummy bear contains 5.24g of sucrose (342.3g/mol). When the gummy bear reacts with potassium…

A:

Q: What is the final temperature when a 5.0 g sample of brass initially at 25 oC absorbs 75 J of heat?…

A:

Q: 2. A metal sample having a temperature of 100°C and a mass of 45.2 g was placed in 50 g of water…

A:

Q: The amount of heat (q) gained or lost by a substance (with mass m) as its temperature changes (A7)…

A:

Q: 1

A: According to the equation;

Q: 20.0mL of 0.15M NaOH was mixed with 30.0mL of .10M HCl inside a calorimeter. Temperature change=+2.5…

A: 20.0 mL of 0.15M NaOH was mixed with 30.0 mL of 0.10M HCl Moles of NaOH = 0.00300 mol Moles of HCl =…

Q: Specific heat of Ag = 0.240 J/g°C, Al = 0.921 J/g°C, Pb = 0.138 J/g°C %3D %3D 1. If a piece of…

A: Specific heat(s) is the heat required for a substance to raise its temperature by 1°C.…

Q: X 10 J/g

A:

Q: 11. A combustion reacti What is the final temp

A: The heat released is given by  Q = mc(delta T) m = mass of the substance c = specific heat  delta T…

Q: Your friend has discovered a new parlor trick and claims that he can boil water by mixing sulfuric…

A: The total volume of solution is, 136.42 mL + 75 mL = 211.42 mL The specific heat for solution is…

Q: A 2.62E1 g sample of aluminum at 1.008E2 °C is added to 1.002E2 g of water at 2.22E1 °C in a…

A: For a chemical reaction or physical process to occur a certain amount of energy should be furnished…

Q: Calculate the amount of heat, in Joules, needed to raise 34.0g of water from 55.0°C to 76.0°C. The…

A: Here we are required to find the amount of heat needed to raise 34.0g of water from 55.0°C to 76.0°C…

Q: 4. When a 255g sample of Al is cooled by 8.0°C, it is found to have lost 1794 J of energy. What is…

A:

Q: 54.73 g of water, H2O, 18.02 g/mol, was heated from -19.53 °C to 112.08 °C.  The freezing and…

A: Between the heating range of -19.53 to 112.08 degree all three states of water is present. At -19.53…

Q: If you have 0.113398Kg of iron. How much heat, in joules, must be added to raise their temperature…

A: Given,specific heat of iron is 0.452 J/g °CInitial temperature =16 °CFinal temperature = 125 °CMass…

Q: A  4.03  kg piece of granite with a specific heat of 0.803 J g-1 °C-1 and a temperature of  93.5  °C…

A: Given, Mass of granite = 4.03  kg Specific heat of 0.803 J g-1 °C-1

Q: 10) Consider the following specific heats of metals. If the same amount of heat is added to 25.0 g…

A: Amount of heat,Q required to change the temperature of a substance of mass ,m and specific heat…

Q: A 57.60 g sample of a substance is initially at 22.6 °C. After absorbing 2787 J of heat, the…

A: Given  m = 57.60 g T1 = 22.6°C T2 = 182.8°C Q = 2787 J Specific heat of substances(c)=?

Q: A 981.8 g sample of bismuth goes through a temperature change of +46.75 °C while absorbing 784.6…

A: 1. Given :-  Mass of sample of Bi = 981.8 g  Temperature change i.e. ∆T = +46.75°C  Amount of heat…

Q: 2

A: The heat in a calorimeter, qcal is given as : The heat change of a reaction in a calorimeter, qrxn…

Q: sample of water with a mass of 726.2 g undergoes a temperature change from 58.32oC to 40.50 oC. What…

A: Given,  mass, m = 726.2 g Specific heat of water (l), S = 4.184 J/g. oC Temperature changes from T1…

Q: The heat of formation of liquid methoxyethane (CH₂OC₂H₂) is -216.4 kJ/mol. Which of the following is…

A: Heat of formation is defined as the heat released when 1 mole of a compound is formed from its…

Q: temperature of the surrounding solution increase or dec

A: Thermodynamics is  branch of chemistry in which we deal with amount of heat  evolved or absorbed…

Q: A gold coin whose mass is 8.47 g is heated to 138.9oC and then quickly dropped into an ice…

A: Given: The mass of a gold coin is 8.47 g. The initial temperature of the coin is 138.9°C. The molar…

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: For a process at constant pressure, 6.20 x 10* calories of heat are released. This quantity of heat…

A: Inorder to convert kilocalorie to joule, multiply the energy value by 4184. So, 1 kcal = 4184 J 1…

Q: What is the amount of heat (value of q) when 22.8 g of aluminum is heated from 20.0℃ to 425℃?

A: Given :- mass (m)  = 22.8 g           Initial temperature (T1) = 20.0 oC           Final temperature…

Environmental Pollution

Environmental pollution occurs due to some unwanted alteration in the surroundings which results in unfavorable effects on all organisms of that surrounding.