Calorimeter mass  162.2 g Mass of calorimeter + cold water 226.6 g Initial temperature of cold water 22°C Temperature of hot water before mixing 85°C Final temperature of the mixture 46°C Mass of calorimeter + mixture 302.7 g Specific heat of water = 1cal/ g °C 15- Heat absorbed by cold water = q = mass of cold water x 1 cal /g ° C X ∆T cold H2O = ___________________ 16- Heat given up by hot water= q = Mass of hot water x 1 cal /g ° C X ∆T H2O hot = _________________________ 17- Heat of the calorimeter q system = q hot water + q cold water + q calorimeter Q system = 0 (isolated system) qcalorimeter = - (q hot water + q cold water)

Q: A calorimeter contained 81.0 g of water at 15.49°C. A 104-g sample of iron at 63.54°C was placed in…

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Q: 23. Use the following information to determine the enthalpy for the reaction shown below. CS2(1) +…

A: C(graphite) + 2S(s) → CS2(l)                        Formation of CS2(l)= ∆H∘(CS2)= 87.9 kJ    CS2(l)…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 124.0 g sample…

A: We are assuming no any phase change during additon of heat .  Change in temperature  = 9.9 -(-2.6)…

Q: what is the heat evolved

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Q: Nitromethane (CH3NO2) burns in air to produce significant amounts of heat.…

A: Molar mass of nitromethane = 61.04 g/mol

Q: a 30.0 g sample of chromium is heated to 100.0°C in a boiling water bath. the sample is added to a…

A: From law of conservation of energy,heat gained by cold body = heat lost by heat body        MCr =…

Q: רPi How much heat will be released (AH) if 0.2037 mol of NH3 are mixed with 0.20 mol of O2 in the…

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Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 418.0 mg sample…

A: Given, mass of sample of C2H2Cl2 = 418.0 mg = 0.418 g Initial temperature (Ti) = -5.8°C = (-5.8 +…

Q: mass of metal=56.100g mass h2o=82.69g ti water=20.9c ti metal=92.7c tf metal and water=25.5c ^t of…

A: The heat transferred during the reaction can be determined from the given equation. The temperature…

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: Heat loss by hot water = heat gain by cold water + heat gain by calorimeter density = massvolume

Q: Consider the following reactions:                  C2H6 (g)  +  7/2 O2 (g)  →  2 CO2 (g)  +  3 H2O…

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Q: The temperature of a sample of silver increased by 23.4 °C when 273 J of heat was applied. Substance…

A: Given: Increase in temperature, ∆T = 23.4°C Heat given, q = 273 J Specific heat for silver = 0.235…

Q: heated to 89.5°C and placed in a calorimeter containing 159 g of water at 22.8°C.  If the heat…

A: Mass of Cu(mCu) = 455 g Mass of Water (mw) = 159 g Heat capacity of water(Cw)= 4.184 J/g-°c Hewt…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 0.54 kg sample…

A: Mass=0.54kg =540 gm (1 kg = 1000gm) T1=-2.9°C= (-2.9+273)K=270.1K  T2=10.5°C=(10.5+273)K=283.5K…

Q: How many litres of C6H14(I), measured at 20 C, must be burned to provide enough heat to warm 25.3 m3…

A: Given ,Objective :

Q: 96 %24 %23 Saved A student has two containers - one with 19.0 g of sand and one with 19.0 g of…

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Q: A system releases 75 J of heat. And the same time 19 J of work is done on the system by the…

A: The formula foe finding Internal energy is, ∆U=q+w where ∆U is the change in internal energy, q is…

Q: The temperature of a sample of iron increased by 23.7 when 261 J of heat was applied. What is the…

A: Given :- change in temperature "∆T" = 23.7°C amount of heat absorbed "q" = 261 J specific heat for…

Q: Calculate the energy required to heat 330.0 mg of silver from -9.8 °C to 12.9 °C. Assume the…

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Q: A 148.9-g sample of a metal at 74.0°C is added to 148.9 g H20 at 14.4°C. The temperature of the…

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Q: A calorimeter contained 67.0 g of water at 15.51°C. A 130.-g sample of iron at 65.76°C was placed in…

A: The heat capacity of the calorimeter is 396.24 J/°C Below attached file showing the details answer…

Q: The amount of energy needed to heat 2.00 g mercury from 50.0°C to 85°C is 9.87 J. The specific heat…

A: Given: Mass of mercury=2.00 g Temperature change, ∆T=(85-50.0)°C=35 °C Heat needed q =9.87 J…

Q: When pure sulfuric acid is dissolved in water, heat is evolved. 10.65 g of pure sulfuric acid at…

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Q: 2 Calculate the temperature reached when 100 g of water at 18.2°C absorbs 9.45 kJ of heat energy.…

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Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 0.55 kg sample…

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Q: 1. What is energy? What are the various units that energy is measured in

A: Nkte: According to our guidelines we are supposed to answer first question only.

Q: The temperature of a sample of copper increased by 24.7 °C when 257 J of heat was applied. What is…

A: • The values provided in the question are:-  i) Temperature change of a sample of copper, ∆T = 24.7…

Q: xperiment 2: The dissolution of NaOH(s) 1 point 1 The temperature of 96.954 g of an aqueous solution…

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Q: In an experiment to determine the specific heat of a metal, 50.0 g of a metal has been heated to…

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Q: The specific heat of a certain type of metal 0.128 J/(g⋅∘C). What is the final temperature if 305 J…

A: Specific heat capacity is defined as the quantity of heat absorbed by 1 g of substance to raise the…

Q: A 74.5 g piece of metal at 88.0°C is placed in 137 g of water at 21.0°C contained in a calorimeter.…

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Q: ormation to answer Questions 6-9: A sample of NH4NO3 with a mass of 5.0 g is dissolved in 40.1 g of…

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Q: A 21.74 g sample of a substance is initially at 24.4 °C. After absorbing 2903 J of heat, the…

A: A numerical problem based on thermodynamics that is to be accomplished.

Q: The specific heat capacity of solid copper metal is 0.385 J/gK. How many joules of heat are needed…

A: Specific heat capacity of Copper metal = 0.385 J/gK mass of block of copper (m) = 1.15 kg = (1.15 ×…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 192.0 g sample…

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Q: A scientist measures the standard enthalpy change for this reaction to be 2863.2 kJ/mol. 6CO2(g) + 6…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: 125 g of water are mixed with 10.5 g of KBr. The initial temperature was 24.2 °C and the final…

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Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 0.19 kg sample…

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Q: A calorimeter holds 50 g water at 22.0°C. A sample of hot iron is added to the water. The final…

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

Q: The specific heat of a certain type of metal is 0.128 J/(g-°C). What is the final temperature if 305…

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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: The amount of heat transferred in a thermodynamic system is calculated as follows,…

Q: ow much heat is required to warm 1.20 Lof water from 20.0 ∘Cto 100.0 ∘C? (Assume a density of…

A: Amount of heat absorbed 'q 'to raise the temperature is found by the following equation,…

Q: Acetylene, C,H2, is used in welding torches. It releases a lot of energy when burned in oxygen. The…

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