What is the final resulting temperature when 35g of water at 75°C is mixed with 15g of water at 15°C? (Specific heat of water is 4.184 J/g°C). O 56°C O 37°C O 48°C O 51°C

Q: The specific heat capacity of lead is 0.13 J/g°C. How much heat (in J) is required to raise the…

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Q: If 50.0 g of water at 25.0 °C absorbs 14.5 kJ of heat, what is the final temperature of the water?…

A: Given  q = 14.5 kJ = 14500 J C = 4.184 J/g.°C Ti = 25°C Tf = ?

Q: 7.00 Jof heat is added to 10.00g of gold, which is initially at 25°C. The heat capacity of gold is…

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Q: Charcoal is primarily carbon. Determine the mass of CO, produced by burning enough carbon (in the…

A: Charcoal burns in the air and reacts with O2 to produce CO gas, which further burns with more O2 to…

Q: A piece of silver, with specific heat capacity of 0.235 J/(g.°C), is added to an insulated container…

A: Given: The specific heat of water, (cH2O) =4.184 J(g. 0C). The specific heat of silver, (cAg) =…

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: A 55 kg block of metal has an original temperature of 15.0°C and a specific heat capacity of 0.45…

A: Specific heat capacity (C) =       Q                                                       m ( T2…

Q: A metal radiator is made from 36.0 kg of iron. The specific heat of iron is 0.449 J g-1 °C-1. How…

A: The mass of iron metal is = 36.0 g The heat capacity of iron metal is = 0.449 J g-1 oC-1 The…

Q: Calculate the heat (in Joules) involved in the process when 124 grams of water goes from a…

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Q: A chunk of mercury at 80.8°C was added to 300.0 g of water at 15.5°C. The specific heat of mercury…

A: Given: For water: Mass of water, mw=300.0 g Temperature change, ∆T=(20.9-15.5)°C=5.4 °C Specific…

Q: 7. A 10.0 g sample of a metal is heated to 75.0 °C and then added to 20.0 g of water at 22.7 °C in…

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Q: When a 2.66-g sample of solid ammonium chloride dissolves in 37.8 g of water in a coffee-cup…

A: Given Mass of ammonium chloride = 2.66 g Mass of water = 37.8 g Initial temperature =21 oC Final…

Q: What is the final resulting temperature when 35g of water at 75°C is mixed with 15g of water at…

A: Write the expression for final temperature, Tf=ncTc+nhThnc+nh where n is the number of moles and T…

Q: The specific heat of a certain type of cooking oil is 1.75 J/(g-°C). How much heat energy is needed…

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Q: Iron metal reacts with Oxygen gas to produce Iron (III) oxide according to the reaction. AH= -1652…

A: Given that , DelH = -1652 KJ  The balanced chemical reaction is given by , 2 Fe(s) + 3 O2(g)…

Q: A metal radiator is made from 14.0 kg of iron. The specific heat of iron is 0.449 J g °C. How much…

A: The mass of iron is = 14.0 g The specific heat of iron is = 0.449 J.g-1.oC-1 Increase in the…

Q: When a 3.46-g sample of solid sodium nitrate dissolves in 41.5 g of water in a coffee-cup…

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Q: A chunk of lead at 91.7°C was added to 200.0 g of water at 15.5°C. The specific heat of lead is…

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Q: rial typically used to heat metal radiators is water. If a 5°C, what mass of water was needed to…

A: Given data set: Specific heat of water = 4.184 J/g C Change in Temperature = 79.5 °C We need to…

Q: The propane fuel (C3H8) used in gas barbeques burns accordingto a thermochemical equation:C3H8(g) +…

A: The reaction is carried out in more than one step then the sum of all the steps gives the overall…

Q: An engineering student wants to study the heat transfer between a 50 g of a heated block of iron…

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Q: A 69.5 g piece of iron at 525°C is put into 627 grams of water at 15.0°C. What is the final…

A: Given  Mass of iron = 69.5 g Mass of water = 627 g Initial temperature of iron = 525°C Initial…

Q: A 921.3 g sample of methane goes through a temperature change of -14.44 °C. The specific heat…

A: The heat involved in the changing the temperature of any sunatance is given by formula - Q = m S ΔT.…

Q: How much energy is needed to heat 180g of water from 28.0 C to 95C. The specific heat of water is…

A: Mass of water = 180g  Specific heat of water = 4.184j/g°C Change in temperature, ∆T = 95- 28…

Q: What mass of natural gas (CH4) must burn to emit 267 kJ of heat?CH4(g) + 2 O2(g) ¡ CO2(g) + 2…

A: It is given that when 1 mole of methane is burned with 2 moles of oxygen to release carbon dioxide…

Q: A  296.0 g piece of granite, heated to  601.0°C in a campfire, is dropped into  1.15 L water (d =…

A: Mass of granite piece=296.0 g  The volume of water=1.15 L=1150 mL The density of water, d = 1.00…

Q: 7. Calculate the specific heat of glass from the following data. The temperature of a piece of glass…

A: The answer is given as follows

Q: The specific heat capacity of methanol is 2.51 J/(g•C). Find the heat required to raise the…

A: Given: The specific heat capacity of methanol is 2.51 J/(g oC).  Mass of methanol given = 80 g…

Q: A chunk of lead at 91.6°C was added to 200.0 g of water at 15.5°C. The specific heat of lead is…

A: We know that, according to the law of conservation of heat energy, energy gained or loss by the…

Q: Consider the following reaction: 2 Al (s) + Fe2O3 (s) → 2 Fe (s) + Al2O3 (s)    ΔH = -850 kJ What…

A: Given the chemical reaction as follows,2 Al (s) + Fe2O3 (s) → 2 Fe (s) + Al2O3 (s)   ;  ΔH = -850…

Q: When a 9.01-g sample of solid iron(II) chloride dissolves in 55.7 g of water in a coffee-cup…

A: heat of dissolution is heat released when a salt is dissolved in water and it breaks into ions and…

Q: A chunk of lead at 91.7°C was added to 400.0 g of water at 15.5°C. The specific heat of lead is…

A: Just apply  Heat given = Heat taken

Q: An 6.11 g sample of calcium carbonate [CaCO 3 (S)] absorbs 84J of heat, upon which the temperature…

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Q: Consider the following thermochemical reaction for kerosene: 2 C12H26 (1) + 37 O2 (g) 24 CO2 (g) +…

A: The given balanced chemical equation is: 2 C12H26 (l) + 37 O2 (g)→ 24 CO2 (g) + 26 H2O (l)…

Q: When 25.0 g hydrogen gas react according to the following reaction, how many kJ of heat are released…

A: Given thermochemical equation is  CO(g) + 3H2(g)   --> CH4(g) + H2O (g)  ;  ∆Hrxn = – 206 kJ Mass…

Q: Suppose you heat a metal object with a massive 31.6 G to 95.5 C and transfer it to a calorimeter…

A: Given : Mass of water = 100.0 g Mass of metal = 31.6 g Initial temperature of water = 17.8 oC Final…

Q: A 5.6 g bullet travelling at 650 m/s is stopped upon impact with a pool of water. How much heat is…

A: We will use the principle of conservation of energy. Total initial energy = Total final energy Here…

Q: The specific heat capacities for several substances are shown in the table. Substance Specific Heat…

A: Given :-  Substance          specific heat (J/g°C)  Iron                        0.45 Air…

Q: How much heat has to be added to 513 g of copper at 22.3°C to raise the temperature of the copper to…

A:

Q: Calculate the amount of heat (in J) required to raise the temperature of 38 g of iron from 26°C to…

A: q = mc∆T  q is the amount of heat energy required  m is the mass of substance  c is the specific…

Q: When 12.29 g of finely divided brass at 95.0 °C is quickly stirred into 40.00 g of water at 22.0 °C,…

A: Given, Mass of brass= 12.29 g Temperature = 95.0°C Mass of water = 40.00 g the temperature of water…

Q: A 25.0 g mercury is heated from 25 °C to 155 °C and absorbs 455 J of heat in the process. What is…

A: Specific heat is the amount if heat required to raise the temperature of 1 g of substance by 1…

Q: Ices] A 21.0 g sample of pure iron at 85 °C is dropped into 66 g of water at 20. °C. What is the…

A: The given problem can be solved by using the formula given below as; mironCiron∆T = mwaterCwater∆T…

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…

Q: The specific heat of a certain type of cooking oil is 1.75 J/(g-°C). How much heat energy is needed…

A: Solution - According to the question - Given values are - M = 1.75 J T = (191-23) = 168 Formulas -…

Q: 35 g of water at 40 C and 95 g of water at 60 C are mixed. What is the temperature of this mixture ?…

A: Given data :

Q: How much energy is required to raise the temperature of 1000.0 g of water from 23.00o C to 26.00o C?…

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Q: The specific heat of aluminum is 0.897 J/g·°C and the specific heat of water is 4.18 J/g·°C.  If a…

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Q: A 27.5g piece of aluminum sits in a room and cools.  It loses 6120.0 J of heat. If the initial…

A: Mass of Aluminum piece = 27.5 gHeat loose = - 6120 JInitial Temperature = 157.3°CFinal Temperature =…

Q: Water has a specific heat of 4.184 Jlg°C. Wood has a specific heat of 1.760 J/g°C. What material…

A: The answer is (a) WATER.

UV Visible Spectroscopy

Spectroscopy refers to the absorption or emission of light or other radiations by matter. When a substance or chemical absorbs light or radiation, they reach an excited state followed by de-excitation or emission of the light or radiation forming distinct spectra. UV-visible spectroscopy or  ultraviolet-visible refers to the absorption and emission in the ultraviolet and visible regions of the electromagnetic spectrum.