After absorbing 1.690 kJ of energy as heat, the temperature of a 0.500-kg block of copper is 43 °C. What was its initial temperature? (The specific heat capacity of copper is 0.385 J/g ⋅ K.)

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 194.0 g sample…

A: Mass of sample = 194 gram Initial temperature = - 8.3℃ Final Temperature , T2 = 4.5 ℃ Change in…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 216.0 g sample…

A: The mass of the sample is = 216.0 g The increase in the temperature is = 19.1 - 1.3 = 17.8oC = 17.8…

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 182.0 mg sample…

A:

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 186.0 mg 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 25.0-mL sample of benzene at 20.4 °C was cooled to its melting point, 5.5 °C, and then frozen. How…

A:

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 576.0 mg sample…

A: Given that, for a 576.0 mg of pure substance, 10.1 J of heat is required to raise the temperature…

Q: A piece of a mysterious metal has a mass of 455g. It was determined that its heat capacity is 34.3…

A: The heat capacity of a given substance is defined as the amount to heat required to raise the…

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 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: A chemist carefully measures the amount of heat needed to raise the temperature of a 198.0 mg sample…

A: Each chemical reaction is associated with the liberation or intake of a certain quantity of heat.…

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

A:

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 1.59 kg sample…

A:

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 1.00 kg sample…

A: Given,  Mass of the substance in kg = 1.00 kg  Initial temperature = Ti = 54.4 0C  Final temperature…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a  1.80kg…

A: The question is about calculating the Specific Heat Capacity of the Substance. Firstly, let's write…

Q: What is the kinetic energy (in J) of a 2240-pound automobile traveling at 67.8 km per hour? x 10 J

A: For an Automobile, Mass, m = 2240 pound  Velocity = 67.8 km hr-1  Kinetic Energy, Ek = ?

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 732.0 mg sample…

A:

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 623.0g sample…

A: • The values provided in the question are:-  i) Mass of a sample of a pure substance, m = 623.0 g…

Q: What can the chemist report for the specific heat capacity of the substance?

A:

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 415.0 mg sample…

A: The amount of heat absorbed or released is equal to the product of mass of substance with specific…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 697.0 mg sample…

A: We will calculate specific heat. Mass= 697mg=0.697g

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 161.0 g sample…

A: A chemist carefully measures the amount of heat needed to raise the temperature of a 161.0 g sample…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 1.21 kg sample…

A: Please find your solution below : Calorimetry is a process which is used to measure the amount of…

Q: A 15.0-mL sample of benzene at 21.0 °C was cooled to its melting point, 5.5 °C, and then frozen. How…

A: Calculate the mass of benzene from density,

Q: A block of iron weighing 207 g absorbs 1.50 kJ of heat. What is the change in temperature of the…

A: Given,

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 823.0g sample…

A: Given;

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 677.0 g sample…

A: When we heat a substance the temperature of the substance increases. The required amount of heat to…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 682.0 mg sample…

A: • The values provided in the question are:-       i) Mass of a substance, m = 682.0 mg = 0.6820 g {…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 228.0 mg sample…

A: The formula to calculate heat is as follows: Q= ms∆T Q is heat released/absorbed. m is mass of the…

Q: 1. When 145.6 J of heat are added to 13.0 g of mercury in a thermometer, the temperature increases…

A: Here we have to determine specific heat of  mercury if 13 g of Hg absorbed 145.6 J heat energy so…

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

A:

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 1.79 kg sample…

A: Answer is given below

Q: To determine whether a shiny gold-colored rock is actually gold, a chemistry student decides to…

A: Given information: Mass = 4.9 g Heat required = 54.4 J Initial temperature = 25 oC Final temperature…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 614.0 mg sample…

A:

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

A:

Q: If 1495 J of heat is needed to raise the temperature of a 357 g sample of a metal from 55.0°C to…

A:

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 1.45 kg sample…

A: Given,  Mass, m = 1.45 kg = 1450 g  Initial temperature, Ti = 36.3 °C  Final temperature, Tf = 56.3…

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: how much energy in joules is needed to heat 200.0 g of water by 10.0 degrees celsius? the heat…

A: The energy in joules that is needed to heat 200.0 g of water by 10.0 degrees Celsius is to be…

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 1.65kg sample…

A: Molar Heat Capacity: The molar heat capacity of a chemical substance is the amount of energy that…

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 0.57 kg sample…

A:

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 1.63 kg sample…

A:

Q: A 15.0-mL sample of benzene at 21.3 °C was cooled to its melting point, 5.5 °C, and then frozen. How…

A: Given, density of benzene = 0.80 g/mL Volume of the solution = 15.0 mL  Mass of benzene = Density x…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 0.91 kg sample…

A: Mass of the substance = 0.91 kg 1 kg = 1000 g