initial temperature of the water was 20.5ºC, and the final temperature of the metal and water was 25.1ºC. The calorimeter constant for the coffee-cup calorimeter was 13.5 J/ºC.  What was the specific heat of the metal?

Q: Adding 5.47 g of to 140 g of water in a coffee-cup calorimeter (with stirring to dissolve the salt)…

A: According to the question, we are adding 5.47 g of NH4NO3 to 140 g of water in a coffee-cup…

Q: 1. A 5.000 g sample of methanol, CH,OH, was combusted in the presenmce of excess oxygen in a bomb…

A: The given data : The mass of methanol = 5.000 g The mass of water = 4000 g The initial temperature…

Q: performs an experiment to determine the heat of reaction in a cold pack. A Styrofoam calorimeter…

A: When a salt is dissolved in the water, some energy may be gained or released.this energy is…

Q: A 2.855 g2.855 g sample of a new organic material is combusted in a bomb calorimeter. The…

A:

Q: A 2.821 g sample of a new organic material is combusted in a bomb calorimeter. The temperature of…

A:

Q: A 45.90 g sample of pure copper is heated in a test tube to 99.40°C. The copper sample is then…

A: We have 45.9 g of Cu metal at 99.4°C, also, 61.04 g of water , temperature of calorimeter…

Q: A 30.14-g stainless steel ball bearing at 117.82°C is placed in a constant-pressure calorimeter…

A: In this process, the heat absorbed by the water is equal to heat release by the stainless steel…

Q: 28.0g of a substance with a molecular weight of 52.0 g/mol is placed in a bomb2 calorimeter with a…

A:

Q: the change in enthalpy for the reaction of sodium hydroxide with hydro chloric acid is -57.9 kJ. if…

A:

Q: In an ideal calorimeter, 250.0 mL of water at 50.O °C and 150.0 mL of water at 20.0 °C are mixed,…

A: Concept  According to calorimetry  Heat absorbed = Heat released

Q: A piece of iran, which has a specific heat capacity of 0.452 J-g1. C, with a mass of 54.3218 g is…

A: Specific heat capacity of iron (C) = 0.452 J.g-1 oC-1                          Mass of iron (m) =…

Q: Two aircraft rivets, one iron and the other copper, are placed in a calorimeter that has an initial…

A: Given: Initial Temperature=20°C

Q: A 31.55 g iron rod, initially at 22.7 °C, is submerged into an unknown mass of water at 63.2 °C, in…

A:

Q: A 0.5736 g of unknown substance is burned in a constant – volume bomb calorimeter that has a heat…

A: Given: Mass of substance = 0.5736 g Heat capacity of calorimeter = 1.674 kJ/°C temperature increased…

Q: 12. A 44.0 g sample of unknown metal at 99.0 °C was placed in a constant-pressure calorimeter, with…

A: The formula for specific heat can be written below in which q represents the heat energy in Joules,…

Q: A quantity of 1.435 g of naphthalene (C10H8), a pungent-smelling substance used in moth repellents,…

A: The formula of heat is given by: q = m×c×∆T where q is the heat c is the specific heat and ΔT is the…

Q: 5.04 x 10-3 mole of a compound is added to 41.0 g of water in a styrofoam cup and stirred until it…

A: Given,Mass of water = 41.0g.Temperature change = 23.4600C – 23.4200C…

Q: A student heats 84.17 mL of water to 95.27°C using a hot plate. The heated water is added to a…

A:

Q: A calorimeter contained 83.0 g of water at 15.43°C. A 165-g sample of iron at 64.80°C was placed in…

A: Heat Capacity (C) is the amount of Heat required to increase the temperature of 1 gram mass of…

Q: A 1.231 g sample of a new organic material is combusted in a bomb calorimeter. The temperature of…

A:

Q: A coffee cup calorimeter contains 156.02 g of water at 22.50 °C. A 65.468 g piece of iron is heated…

A:

Q: A lead pellet having a mass of 26.47 g at 89.98 °C was placed in a constant-pressure calorimeter of…

A: Given data: The mass of the lead pellet=26.47 g. The temperature of the lead pellet=89.93°C. The…

Q: A 50.0 mL sample of 0.5 M AgNO3(aq) is mixed with a 50.0 mL sample of 0.5 M NaI(aq) in a…

A:

Q: When 10 g of citric acid was burned in a calorimeter containing 1500 g of water, a temperature rise…

A: Step 1: We know that,

Q: When 1.911 grams of sucrose (Molar mass 342.3 g/mol) is burned in a bomb calorimeter, the…

A: Given that :  Mass of sucrose = 1.911 g Molar mass of sucrose = 342.3 g/mol Initial temperature =…

Q: A 432.00 sample of an unknown metal at 101.93°C is placed in a calorimeter containing 131.00 mL of…

A: Solution :    The specific heat capacity is defined as the amount of heat required to change the…

Q: In a constant-volume calorimeter containing 1500.0 mL of water, a 143.9-gram piece of iron (Fe) rod…

A: Given: Volume of water = 1500.0 mL  Mass of iron = 143.9 g. Initial temperature of water = 17.11 oC…

Q: A 5.006 g sample of methanol, CH3OH, was combusted in the presence of excess oxygen in a bomb…

A: Since the question number is not mentioned, we will answer both the questions.

Q: In an experiment, 28.0 g of metal was heated to 98.0°C and then quickly transferred to 150.0 g of…

A:

Q: piece of metal weighing 45.0 g was heated to 95.0oC, and the hot metal was added to 50.0 g of cold…

A: We know that the heat lost by the metal will be equal with the heat gained by the water.  Thus…

Q: A 328.00 sample of an unknown metal at 87.78°C is placed in a calorimeter containing 136.00 mL of…

A: The principle of the calorimeter is the heat energy transferred between the water in the calorimeter…

Q: A 2.673 g sample of a new organic material is combusted in a bomb calorimeter. The temperature of…

A: Tf = 28.80°C  Ti = 25.03° C ΔT = Tf - Ti = 28.80° C - 25.03 ° C                                =…

Q: A quantity of 2.314 g of naphthalene (MM = 128 g/mol), a pungent-smelling substance used in moth…

A: Given: Heat capacity of bomb = 5.170 KJ/oC = 5170 J/oC                             (Since 1 KJ =…

Q: A 3.623 g sample of a new organic material is combusted in a bomb calorimeter. The temperature of…

A: Given, The weight of sample is 3.623 g. The given temperature values are 23.53 ˚C and 30.40 ˚C. The…

Q: A lead pellet having a mass of 28.47g at 98.89°C was placed in a constant-pressure calorimeter of…

A:

Q: student mixed 50.0 mL of water containing 0.010 moles of HCI (weighing 50.0 g) with 60.0 mL of water…

A: Initial temperature = 25°C  Final temperature = 26.20°C Change in temperature = 26.20 - 25 = 1.20°C

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

A: Here we are required to find the final temperature of water using the principle of calorimetry

Q: A calorimeter contained 79.0 g of water at 15.91°C. A 105-g sample of iron at 65.26°C was placed in…

A: Given data :  Mass of iron = 105 g  Mass of water = 79 g  Final temperature of metal = 18.88°C…

Q: When a 13.3 g sample of NaOH(s) dissolves in 394.0 mL water in a coffee cup calorimeter, the…

A:

Q: A 10.7 ml sample of 0.947 M NaOH is mixed with 15.9 ml of 0.955 M HCl in a coffee-cup calorimeter.…

A: Given: Concentration of NaOH = 0.947 M Volume of NaOH solution = 10.7 mL = 0.0107 L…

Q: A 1.917 g sample of a new organic material is combusted in a bomb calorimeter. The temperature of…

A:

Q: A student heats 84.17 mL of water to 95.27°C using a hot plate. The heated water is added to a…

A: It is given that 84.17 mL of hot water at a temperature of 95.27°C is added to 73.92 mL of cold…

Q: A 5.1-gram piece of gold jewelry is removed from water at 100.0°C and placed in a coffee-cup…

A:

Q: A 44.0 g sample of unknown metal at 99.0°C was placed in a constant-pressure calorimeter, with a…

A: Given : Mass of water = 80.0 g Mass of metal = 44.0 g Initial temperature of water = 24.0 oC Final…

Q: A 3.59°C increase in temperature occurs when a 0.232 g sample of benzoic acid (C7H6O2) is combusted…

A: Heat of combustion if benzoic acid = -26.37 KJ/mol Mass of benzoic acid = 0.232 g Heat releases =…

Q: A student did an experiment to determine the specific heat capacity of a metal alloy. The student…

A: The temperature v/s time curve of water is given as,

Q: A 10.0-g sample of ammonium nitrate, NH4NO3, is added to 100.0 mL of water (density = 1.00 g/mL) in…

A: Given values: Mass of NH4NO3 = 10 g Density of water = 1 g/mL Inital temperature of calorimeter = 25…

Q: A 432.00 sample of an unknown metal at 101.93°C is placed in a calorimeter containing 131.00 ml of…

A: Mass of water can be calculated using the density formula: Density=MassVolume Mass=1.00 g/mL×131.0…

Q: When a solid dissolves in water, heat may be evolved or absorbed. The heat of dissolution…

A: The heat of dissolution of MgCl2=heat absorbed by calorimeter+Heat absorbed by the solution.…