1. How many calories of heat (energy) would it take to heat 21.0 g of water from 31.0 °C to 57.0 °C?   q = _____ cal

Q: 3. What is the heat change when 55.0 g of water cools from 60.0 degrees Celsius to 25.5 degrees…

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Q: 4. A marble is added is added to 40.0g of water. The initial temperature of the water is 25 degrees…

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Q: heat in kJ

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Q: A beaker contained 70.3 g of water at 13.51°C. A 102.77-g sample of metal at 72.84°C was placed in…

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Q: 54. Perform each conversion. (a) 345 Cal to kilowatt-hours (b) 23 J to calories (c) 5.7 × 10° J to…

A: Hi, since you have posted questions with multiple subparts we will answer first three subparts for…

Q: How much heat, in units of Joules, is needed to warm 667.7 g of copper from 17 °C to 59 °C? The…

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Q: What is the specific heat of a 41.5g piece of glass, if it takes 17.8 kJ of heat to raise its…

A: ∆H = mS∆T  ∆T = 68.5 - 20 = 48.5 °C

Q: How much heat is required to raise the temperature of 34.0 g of water from-15 °C to 145 °C? heat:…

A: Given mass of water is 34.0g Initial temperature is -15oC. Final temperature is 145oC. How much heat…

Q: 1.) In the laboratory a student finds that it takes 4.75 calories to increase the temperature of…

A: 1) Given: Mass of lead = 10.4 g. Amount of heat added = 4.75 calories. The initial temperature of…

Q: If calorie raises the temperature of 1ml of water by 1ºC, how many calories are needed to raise the…

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Q: What is the specific heat of an object that goes from 20.7°C to 34.3°C when it absorbs 137 calories…

A: 1) Mass of the object is (m)=11.2 g 2) The initial temperature of an object is (Ti)=20.7°C 3) The…

Q: How many calories are required to raise the temperature of 225g of water from 42.0 degrees C to 75.0…

A: Given that, Now, the heat required to raise the temperature is calculated by following equation:…

Q: Expressing amounts of energy in different energy units is necessary to solve many chemistry…

A: Energy can have several units like kJ, kcal, BTU

Q: How many joules of heat are required to heat 125 g aluminum from 19.0°C to 95.5°C?

A: Specific heat: It is defined as the heat required the raise the temperature of 1g of a substance by…

Q: If the same amount of energy in the form of heat is added to 5.00g samples of each of the metals…

A: Specific heat capacity is defined as the amount of heat required to raised the temeperature of 1kg…

Q: heat in kJ

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Q: If the specific heat of water is ca increase the temperature of 75 g of water by 30 °C? 1gx1°C» how…

A: “Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: A student places a block of hot metal into a coffee cup calorimeter containing 163.5 g of water. The…

A: Equation for the heat absorbed ( q )   q  =  m  ×  C  ×  ΔT  m = mass C = Specific heat capacity ΔT…

Q: In the US, nutritional energy is reported in Calories (Cal). One nutritional Calorie is equal to one…

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Q: When 435 J of heat is added to 3.4 g of olive oil at 21 o C, the temperature increases to 85 o C.…

A: Given: q=435 J of heat absorbed by the substance.m=3.4g of olive oil To Solve: Specific heat…

Q: In the laboratory a student finds that it takes 34.3 Joules to increase the temperature of 13.7…

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Q: An average home in Colorado requires 20. GJ of heat per month. How many grams of natural gas…

A: Given, Amount of heat = 20 GJ = 20 x 109 J  (since, 1 GJ = 1 x 109 J) Enthalpy of reaction (△H°rxn)…

Q: How many calories are required to raise the temperature of a 150.g sample of gold from 25 Celsius to…

A: Given data is as follows: The mass of the gold sample = 150 g The initial temperature of gold Ti= 25…

Q: When a 0.67-g sample of olive oil is burned in a calorimeter, the heat released increases the…

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Q: how many calories are required to heat 52.7g of aluminum from 100 celsius to 285 celcius ? specific…

A: The amount of heat required to raise the temperature of the substance by one-degree Celsius is known…

Q: How many calories of heat are needed to raise the temperature of 75g of water from 20 ᵒ C to 80 ᵒ C.

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Q: Perform each conversion between energy units. 3.71×106 kJ to kcal Express the value in kilocalories…

A: 1 Kcal = 1000 cal  1cal = 4.184J 1Kcal = 4.184J

Q: When a 0.69-g sample of olive oil is burned in a calorimeter, the heat released increases the…

A: The amount of energy for a particular amount of matter present at specific temperature with specific…

Q: A piece of metal weighing 59.6 g with a specific heat of 0.59 Jg1°C-! at 1197.5 °C is dunked into a…

A: When the hot metal is dunked into the water, the heat is released by the metal and the equal heat is…

Q: A 125-g piece of metal is heated to 288 °C and dropped into 85.0 g of water at 12.0 °C. The metal…

A: Using the given statement that dropping hot metal into water with given data we conclude that heat…

Q: How much heat is needed to heat 25.00 grams water from 10.00 degrees C to 25.00 degrees C

A: Specific heat capacity (s) :- The amount of heat required to increase the temperature of one gram ia…

Q: A 0.82 g corn chip burns and heats 50 g of water from 22.1 degrees C to 27.8 degrees * C . If 0.23 g…

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Q: 50 g of copper is heated to increase its temperature by 10° C. If the same quantity of heat is given…

A: Given: The mass of copper (Cu) is 50 g The increase in temperature of copper is 10oC The mass of…

Q: If 1369 J of heat are released when 156 g of silicon cools from 37.5 oC to 2.50 oC, what is the…

A: Amount of heat released = 1369 J Amount of heat released (∆H) -1369 J Negative sign indicates heat…

Q: 14.0 g of metal at 24.0 °C has 250 joules of heat added to it. The metal's specific heat is 0.105…

A: We have given that  14.0 g of metal at 24.0 °C has 250 joules of heat added to it. The metal's…

Q: How many calories of heat (energy) would it take to heat 13.0 g of water from 35.0 °C to 55.0 °C? q…

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Q: In the laboratory a student finds that it takes 48.7 calories to increase the temperature of 11.6…

A: Using formula of specific heat capacity and by putting values given we have solved this problem.

Q: 2116.16 J of energy is equivalent to how many calories?

A: Given :- 2116.16 J of energy  To calculate :- Energy in calorie.

Q: 1) A 12 oz. can of soda weighs about 450 grams. How many joules are released when a can of soda is…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: How much heat is required to raise the temperature of 44.0 g of water from -15 °C to 115 °C? heat:…

A: Given,  Initial temperature = Tinitial = -15 0C  Final temperature = Tfinal = 115 0C  Mass of water…

Q: If the specific heat of iron is 0.460J/g°C, how much heat is needed to warm 50.0g of iron from…

A: Mass of Iron, m = 50 g Specific heat of Iron, Cs = 0.460 J/g °C Initial Temperature, Ti = 20°C Final…

Q: classify each of  the following as exothermic or endothermic and give the change in heat, C3H8(g)…

A: Exothermic Reaction: Reaction in which heat is released. ΔH is negative for exothermic reactions.…

Q: heat

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Q: How many kilocalories of heat (energy) would it take to heat 141.0 g of water from 23.0 °C to 85.0…

A: Given How many kilocalories of heat would it takes to heat 141.0g of water from 23.0 °C to 85.0 °C?

Q: Calculate the specific heat of an unknown metal if a 32.5 g sample loses 328 J of heat when it cools…

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Q: When we see that 10 gummy bears are 80 Calories meaning that each bear is 8 Calories, this really…

A: 10 gummy bears = 80 calories.  1 gummy bear = 8 calories. 1 calorie = 4.184 J 1 kJ = 1000 J.

Q: The energy released as heat by a 207g metal as it cools down its temperature by 72 C is utilized to…

A: Given that, The mass of the metal is m1 = 207 g, The mass of the water is m2 = 305 g, The specific…

Q: Propane (C3H8) is often used to heat homes. The combustion of propane follows the following…

A: Answer: 172.64 grams

Q: How many joules of heat are required to heat 150g of aluminum from 48.0 degrees Celsius to 61.5…

A: Heat is given = mc∆T mc(T2-T1) Heat is a form of energy. Heat flow from high temperature to low…