7. If you add a 120 °C platinum piece with a mass of 2.34 g (c = 0.126 J/g°C) to 100 g of 5.2 °C water in a calorimeter that will absorb no heat. What is the final temperature of the water? 09 ort evie

Q: A 113.25 gram sample of gold is initially at 100.0 °C. It gains 20.0 J of heat from its…

A: Heat formula will be used to calculate the final temperature of gold. Here it is: Heat = Mass of…

Q: an

A: Heat flow from high temperature to the low temperature Q= mc(T2-T1)

Q: Calculate the energy (in kJ) required to heat 0.789 grams of water from 10.4 ℃ to 86.0 ℃.

A: weight of water = 0.789 gm initial temp. = 10.4 ℃ final temp. = 86.0 ℃ energy = ?

Q: A sample of metal weighing 9.323 g was heated to 99.15 °C. It was then placed in a calorimeter…

A: Given data, The mass of water = 35.5 g The mass of metal = 9.323 g The initial temperature of  H2O =…

Q: In the laboratory a student uses a "coffee cup" calorimeter to determine the specific heat of a…

A:

Q: coffee-cup calorimeter contains 50 mL of water with an initial temperature of 24.8°C. An unknown…

A: All the necessary calculations have been done in the following step.

Q: A 40.5 g silver spoon at 17.7°C is placed in a cup of coffee at 89.3°C. How much heat does the spoon…

A:

Q: A 20.8 g piece of metal has a specific heat of 0.52 J/g°C. It was heated to 9.5°C then placed inside…

A: Formula used :  -q(lost) = q(gained) If no heat is lost to the surrounding.

Q: A 15.0 g piece of graphite is heated to 100.0 degrees C and placed in a calorimeter. The graphite…

A: The specific heat of graphite is calculated by using the following expression,

Q: How many joules are required to heat 180g of water from 20c to 35c. The specific heat of water is…

A:

Q: The table lists the specific heat values of several substances. Substance Specific heat (cal/g.°C)…

A: Heat energy is given by q = m * C * ΔT where q = heat energy m = mass of the substance C = specific…

Q: Instead of chasing the Roadrunner, Wile E. Coyote thinks he may have found his retirement plan! He…

A: Answer is explained below.

Q: Calculate the initial temperature of a 332.5g sample of water that released 32,000J of heat and had…

A: Given: The final temperature is 3.57 °C. The heat released is 32000 J. The mass of water is 332.5 g.…

Q: 0.26g CH4 are burned and all the heat added to a silver cup with 90g H2O(l) inside. If the water was…

A: The combustion reaction of CH4 is => CH4 + 2 O2 --------> CO2 + 2 H2O Since the ΔH of reaction…

Q: In the laboratory a student uses a "coffee cup" calorimeter to determine the specific heat of a…

A: Mass of chromium, m1 = 18.5 g Mass of water, m2 = 81.3 g Temperature of chromium, T = 98.04 °C…

Q: A 55-gram aluminum spoon (specific heat 0.88 J/g°C) at 54°C is placed in 150 mL of coffee at 105°C…

A:

Q: What would be the final temperature of 1 gallon of water (3.785 L) if you added 1.218 x 103 kJ of…

A: we need to find the final temperature of water under given conditions

Q: A bomb calorimeter, or a constant volume calorimeter, is a device often used to determine the heat…

A: Given, Mass of quinizarin - 0.6677 g. Temperature change(dT) - 26.86 oC to 29.43 oC =  Mass of water…

Q: 6.117 What is the temperature of a 125-g sample of tin, initially at 26.2°C, if 155 J of heat is…

A:

Q: A 5.00 sample of a brownie was burned in a bomb calorimeter containing 2025 g of water. The…

A:

Q: A 2.57 kg piece of granite with a specific heat of 0.803 J g¹ °C-¹ and a temperature of 81.1 °C is…

A: Using Heat conservation , Heat loss by metal =Heat gain by water  (m.s.∆T)m = (m.s.∆T)w Where,  m =…

Q: A student heats 68.15 grams of silver to 98.73 °C and then drops it into a cup containing 78.21…

A: All the information is given in question  Mass of silver and temperature  Mas software water and…

Q: Calculate the quantity of heat, in kilojoules, required to raise the temperature of 9.25 L of water…

A:

Q: 5. If you hold snow, the snow begins to melt and your hand feel cold. This is because melting snow…

A:

Q: How many milliliters of water at 3.16°C with a density of 1.00 g/mL must be mixed with 180 mL (about…

A:

Q: 5) A 70.0-g piece of metal at 80.0 °C is placed in 100 g of water at 22.0 °C contained in a…

A: Introduction: Specific heat of a substance is defined as the heat required by the unit mass of…

Q: 4) You are told that a chemical reaction is exothermic. How could you test whether the statement is…

A:

Q: Copper is sometimes coated on the bottom surface of cooking pans. Copper has a specific heat of…

A: Concept introduction: Heat capacity is the amount of heat required to raise the temperature by 1oC…

Q: How much heat (in J) is required to raise the temperature of a block made of pure copper was a mass…

A:

Q: Knowing that liquid water has a much higher specific heat capacity than the metal lead, which sample…

A: Q = m . s . ∆T Where, Q = heat absorbed; m = mass of substance; s specific heat capacity and ∆T =…

Q: 4) Calcium chloride (CaCl2) emits heat when dissolved in water. CaCl2e) → Ca- 2+ (aq) + 2Cl (aq) ΔΗ.…

A: First of all you need to find the amount of heat required to raise the temperature of water. For…

Q: 20 gr piece of metal at 100 °C is placed in a calorimeter containing 50.7 gr of water at 22 °C. The…

A: Here we are required to find the specific heat capacity of metal piece

Q: 7. Calculate the specific heat of gold if it required 48.0 joules of heat to warm 25.0 grams of gold…

A:

Q: When 156 g of water at a temperature of 22.5°C is mixed with 65.1 g of water at an unknown…

A: This is a question from mixing of substances.

Q: A student measures the following data regarding the heat of fusion of ice: 24.8 g ice at 0.0°C is…

A: Given: Heat capacity of calorimeter = 15.4 J/oC Initial temperature of calorimeter and water = 21.5…

Q: Given a 49.8-g49.8-g sample of this substance with a specific heat of 59.0 J/(kg·°C),59.0 J/(kg·°C),…

A: A sample whose temperature is changed from 180°C to 256°C, whose quantity of heat energy released is…

Q: A student heats a 5.0 g sample of an unknown metal to a temperature of 207∘C, and then drops the…

A:

Q: Calculate the amount of heat required to raise the temperature of an 91g sample of water from 39 ∘C…

A: The heat required to raise the temperature of a substance can be expressed as:

Q: What will the final temperature be if a 5.00-g silver ring at 37.0℃ gives off 25.0 J of heat to its…

A:

Q: How much heat is needed to raise the temperature of 81.0 gof water from 35.0 °C to 94.0 °C? 289000 J

A:

Q: An 80.0 g sample of metal, initially at 96.0°C, is placed into 150. g of water initially at 26.0°C…

A: The unknown metal is initially at a higher temperature, so it will lose heat on being dropped into…

Q: A coffee cup calorimeter, including that water it contains, has a heat capacity of 425 J/K, and is…

A: Formula: q = C × ∆T where , q = heat  C = Heat Capacity ∆T = Change in temperature   The Heat lost…

Q: How much heat is required to raise the temperature of 85.0 grams of water by 15.0 degrees C?…

A:

Q: A student heats a 5.0 g sample of an unknown metal to a temperature of 211 °C, and then drops the…

A: Given, Mass of sample metal = 5.0 g Mass of water in calorimeter = 66.0 g The initial temperature of…

Q: A 43.9 g spoon made of pure silver (c = 0.235 J/g C) at 20.1 celcius is used to stir an 8 oz. (240…

A:

Q: If 4.168 kJ of heat is added to a calorimeter containing 75.40 g of water, the temperature of the…

A:

Q: Calculate the energy in kilojoules required to heat 0.134 g of water from 46.8 Celsius to 105.4…

A: Given,mass of water = 0.134 g = 1.34 x 10-4 kg. From literature,heat capacity of liquid water =…

Q: C3H6O) is quite flammable. If a bottle of nail polish (187 mL) burns, how much heat is released? The…

A: The mass of acetone=187 mL×0.788gmL=147.36gin a chemical reaction, some bonds are broken and some…

Q: A glass contains 250.0 g of warm water at 78.0°C. A 50.0 g piece of gold at 2.30°C is placed in the…

A: