A chemist carefully measures the amount heat needed to raise the temperature of a l53.0 g sample of a pure substance from -1.2 °C to 10.9 °C. The experiment shows that 831. J of heat are needed. What can the chemist report for the specific heat capacity of the substance? Round your answer to 3 significant digits. -1 -1

Q: A chemist carefully measures the amount of heat needed raise the temperature of a 488.0 g sample of…

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Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 886.0 g sample…

A: The heat (q) absorbed or evolved can be calculated by the mass (m) of the compound, temperature…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 153.0 mg sample…

A: Given data,  Mass of the sample of a pure substance= 153.0 mg = 153.01000gm= 0.153 g Temperature…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 0.46 kg sample…

A: The solution is provided below;

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 643.0 mg sample…

A:

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 0.85 kg sample…

A: Given: Mass of sample = 0.85 Kg = 850 g                              (Since 1 Kg = 1000 g) Initial…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 480.0 mg sample…

A: Given: Mass of mercury=480.0 mg=0.4800 g Temperature change, ∆T=(48.8+273)-(35.2+273)=13.6 K Heat…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 385.0 g sample…

A:

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 267.0 g sample…

A: Mass of substance = m = 267.0 g Change in Temperature( ΔT)  = 7.3 - (-5.2) = 12.5 °C = 285.5 K Heat…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 333.0 g sample…

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Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 674.0 mg sample…

A:

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 0.53 kg sample…

A: We know that  Q = m*s*ΔT        ----------(1) Where, Q is heat energy               m is mass of…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 273.0 g sample…

A:

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 1.91kg sample…

A: Given: mass of substance = 1.91 kg = 1910 g Temperature change = 0.6°C to 15.5°C Heat needed = 3.96…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 1.87 kg sample…

A:

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 569.0g sample…

A:

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 438.0 mg sample…

A: The given data contains, mass = 438 mg = 0.438 gInitial temperature =19.3°C =292.3 KFinal…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 749.0 mg sample…

A: Given: The mass of the sample = 749.0 mg The initial temperature of the sample = -3.1 oC The final…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 562.0g sample…

A:

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 282.0 g sample…

A: We know that , amount of heat (Q) -  Q = m.s.∆t

Q: A chemical substance has a specific heat of 0.897 J/g-ºC. If an unknown mass of this substance is…

A: Answer:- This question is answered by using the simple concept of calculation of heat using the…

Q: 1/5 A chemist carefully measures the amount of heat needed to raise the temperature of a 1.72 kg…

A: Given : mass = 1.72 kg

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 1.68 kg sample…

A: The mass of the substance is = 1.68 kg The increase in the temperature of the substance is =…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 1.25 kg sample…

A:

Q: hemist carefully measures the amount of heat needed to raise the temperature of a 886.0 mg sample of…

A: Specific heat capacity is amount of heat needed to increase one gram of substance by one degree

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 1.08 kg sample…

A: Amount of heat energy is required to raise the temperature of 1 g substance by 1° C is called…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 126.0 g sample…

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

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 162.0 g sample…

A: Answer: When heat is added to a substance, its temperature rises but the value of temperature rise…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 1.82 kg sample…

A: Answer: Whenever a substance absorbs the heat, its temperature rises but the magnitude of that…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 0.99 kg sample…

A: Given-> Weight of sample = 0.99 Kg = 0.99×1000 gm…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 631.0 g sample…

A:

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 206.0mg sample…

A: Given : Mass of sample = 206 mg = 0.206 g…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 663.0 mg sample…

A: Given Mass = 663 mg = 663 x 10-3 g Heat = 12.8 J T1 = 0°C T2 = 21.4°C

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 446.0 mg sample…

A: Given, mass of a sample,m = 446.0 mg = 446.0×10-3 g The temperature rise from T1 = -3.8 oC  T2 =…

Q: O THERMOCHEMISTRY Calculating specific heat capacity A chemist carefully measures the amount of heat…

A: Calculation as shown below

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 741.0 g sample…

A:

Q: A sample of a metal weighing 18.3 g was heated to 99.9°C, then placed into a calorimeter containing…

A:

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 1.75 kg sample…

A: Given: Mass of sample = 1.75 kg Initial temperature = 22.2oC Final temperature = 45.4oC Heat…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 339.0 g sample…

A:

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 839.0 g sample…

A: The mass of the substance is = 839.0 g The raise in the temperature of the substance is = 8.9oC -…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 744.0 mg sample…

A: mass = 744mg = 0.744g Initial Temperature = -7.8oC Final Temeprature = 12.8oC Heat = 3.60J

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 0.61 kg sample…

A: We have to calculate the specific heat.

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 251.0 mg sample…

A: m = 251 mg = 0.251 g T1 = -9.6 oC T2 = 6.1 oC  q = 1.77 J C = ? ΔT = T2 - T1 = (6.1 + 273) - (-9.6 +…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 309.0 g sample…

A: Given: The mass of the given sample, (m) = 309 g. The initial temperature, (T1) = -2.9 0C=…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 191.0 g sample…

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

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 500.0 mg sample…

A:

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 284.0 mg sample…

A:

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 0.46 kg sample…

A: Specific heat--->> The specific heat capacity of a substance is the amount of energy required…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 799.0 mg sample…

A:

Q: A chemist carefully measures the amount of heat needed to ralse the temperature of a 1.48 kg sample…

A: Molar heat  capacity of a substance is the change in heat when one mole of substance is heated and…

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.