Which statement describes the following reaction? Select one: It is exothermic and releases 68.3 kilocalories. It is endothermic and releases 68.3 kilocalories. It is endothermic and absorbs 68.3 kilocalories. It is exothermic and absorbs 68.3 kilocalories

Q: Use the following calorimetric values to answer the question: The specific heat capacity of water…

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Q: Initial mass of food sample (g) 1.93 Final mass of food sample (g) 0.4: Initial temperature of water…

A: Given: Mass of Water =113.65g The initial temperature of water= 22.00 oC The final temperature of…

Q: Use the image to answer the question. Which kind of reaction is shown in this image? 1 point warm…

A: It is an endothermic reaction because the system takes energy from the surroundings.Explanation:The…

Q: Question Calculate the Caloric content present in 100 g of brown bread. It contains 54 g of…

A: Calories are the amount of energy released when your body breaks down food. The more calories a food…

Q: 3. The density of water at 25 °C is 0.997 g/mL and the density of vegetable oil at this temperature…

A: Endothermic process: it is a thermodynamic process where the enthalpy (H) of the system icreases.…

Q: What is the temperature change for the calorimeter reaction shown in the graph below? 38.1 30…

A: Chemical processes' enthalpy changes can be computed based on how they affect the surrounding…

Q: Calculate the calories lost when 65g of water cools from 45 degrees Celsius to 25 degrees Celsius.

A: mass of water (m) = 65 g Initial temperature (Ti) = 45°C Final temperature (Tf) = 25°C Amount of…

Q: While digging at the beach, you have come across what looks like a gold Thinking it too good to be…

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Q: Based on the balanced thermochemical equation: 4 NO + 6 H2O → 4 NH3 + 5 O2   ΔH = +(8.880x10^2) kJ…

A: Given, 4 NO + 6 H2O → 4 NH3 + 5 O2   ΔH = +(8.880x102) kJ mass (in grams) of H2O are required to…

Q: The following thermochemical equation is for the reaction of nitrogen(g) with oxygen(g) to form…

A: 66.4 kJ energy will cause reaction of 28 g N2 gas. So, mass of N2 will react by providing 20.8 kJ…

Q: Question: When 5.12 g of NaOH were dissolved in 51.55 g of water in a calorimeter at 24.5 °C, the…

A: Given: Mass of NaOH = 5.12 g Mass of water = 51.55 g Initial temperature of water = 24.5oC Final…

Q: Use the following calorimetric values to answer the question: The specific heat capacity of water…

A: • For water,mass of water (mwater) = ?Specific heat capacity of water (swater) = 4186 J/kg.°C =…

Q: How many calories are required to raise the temperature of a 73.0 g sample of gold from 26.0 °C to…

A: q = mc∆T  q is the amount of heat energy required  m is the mass of substance  c is the specific…

Q: A 2.5 g sample of french fries is placed in a calorimeter with 500.0 g of water at an initial…

A: This problem is based on calorimeter where we need to find out Caloric value of the French…

Q: How much heat, in joules and in calories, must be removed from 2.13 mol of water to lower its…

A: Given information is as follows: The number of moles of water = 2.13 mol The initial temperature…

Q: Quantity Mass of can (g) 12.695 mass of can and water (g) 125.129 Initial mass of food sample (g)…

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Q: Mixing 50 ml of HCI ( 2.0 M) with 50 ml of NaOH ( 2.0 M ) raises the temperature of the calorimeter…

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Q: O Macmillan Learnin A student places a block of hot metal into a coffee cup calorimeter containing…

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Q: How many calories are in 8671 kilojoules ? (1 cal = 4.184 J)

A: The conversion of quantity from one unit system to another unit system is known as unit conversion.…

Q: Use the set of three reactions shown below to answer the questions that follow. 2NO2(g) 2NO (g)O2(g)…

A: Let ‘x’ be the amount of heat released by 50.3g of NO.

Q: If the water in a coffee cup calorimeter absorbed 300 J of energy (q = +300 J) during a reaction…

A: Energy absorbed by water in coffee cup calorimeter = 300 J qwater = + 300 J

Q: Rank the kinetic energy of each from lowest to highest. A 9.5 mg insect moving at 17.6 cm/s.  A 10.3…

A: Kinetic energy of a substance can be using the below mentioned formula,  Where m is the mass of the…

Q: If the initial temperature of 120. g of ethanol is 20.0°C, what will be the final temperature after…

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Q: Answer in joules and calories. Energy required to heat 5.25 g of water from 5.5 °c to 64.8 °c.…

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Q: mass of water

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Q: How many calories are required to heat 100.0 g of water from -15.0 oc to 15.0 oc?

A: Amount of heat required to raise the temperature is given by the following expression

Q: How many calories were absorbed by a reaction if the change in temperature of 55 g solution was -5.6…

A: The specific heat capacity for a given substance refers to the amount of heat that is needed to…

Q: A 1.90 g sample of KCI salt is dissolved in 50.0 g of water in a coffee cup calorimeter. If the…

A: To calculate the heat involved in the dissolution of KCl, you can use the formula:q=mcΔTwhere:q is…

Q: 2

A: The heat in a calorimeter, qcal is given as : The heat change of a reaction in a calorimeter, qrxn…

Q: 5. What is the final temperature after 80.0 calories are absorbed by 10.0 grams of water at 25.0 °c?…

A: The question is based on the concept of specific heat capacity.   amount of heat required to raise…

Q: Peanut Marshmallow Mass of Water  50g  50g Initial Mass of Food Sample and Paper Clip   10.42…

A: As we can see that in this experiment , food was burnt to heat water. Which means the heat released…

Q: What will be the final temperature of a 552-g sample of water, initially at 14.0°C, after 584 kJ…

A: Given,  Mass of water, m = 552 g  Heat, q = 58.4 kJ = 58.4x103 J  Heat capacity of water, Cp = 4.184…

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Q: How many J of energy are needed to raise the temperature of 36.5 g of water from 21.55°C to 57.32°C?…

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