a 0.2500g sample of a pretzel is burned . The heat it gives off is used to heat 50.00g of water from 18.0 degrees Celcius to 42 degrees C. What is the caloric value of the pretzel in kcal/g?

Q: How many calories of energy does it take to heat a 115.2mL sample of water from 11.0° C to 88.0° C?

A: Since the heat required to heat the water (liquid state) is given by  Q = mC ΔT where  ΔT = change…

Q: If a 6.7892 g sample of Chips is burnt and releases enough heat to raise the temperature of 96.6782…

A: Given: Mass of water = 96.6782 g. Initial temperature of water = 26.4 oC And the final temperature…

Q: Convert between energy units. a. 231 cal to kJ b. 132 x 10* kJ to kcal d. 2.88 x 10* J to Cal c.…

A: Convert between energy units. (a) 231 cal to kj (b) 132 × 104 kj to kcal (c) 4.99 × 103 kj to kWh…

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

A: In this question, the units of energy have to be converted into various other energy units.…

Q: The nutritional information label for food items provides the calorie content and other nutritional…

A: Given: Donuts Composition:  Carbs = 32 g Fats = 12 g Proteins = 2g and Energy Value: Carbs = 17 KJ/g…

Q: How many calories are in 6901 J ?

A:

Q: A runner burns 2.56 x10^3 kJ during a five mile run how many nutritional calories did the runner…

A: Given : energy burned in KJ = 2.56 X 103 KJ

Q: When 1.0 g of gasoline burns, it releases 11 kcal of heat. The density of gasoline is 0.74 g/mL. a.…

A: It is given that:Mass of gasoline = 1.0 gAmount of heat released = 11 kcalDensity of gasoline = 0.74…

Q: a person practicing yoga for one hour burns 285 kilocalories (kcal), how many joules (J) of energy…

A: 1kcal=4184joule 285kcal= 285×4184= 1192440joule

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

A: The heat is related to mass, temperature change, and specific heat of a substance as: q=mc∆T

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: What is the kinetic energy in joules of a 1030-kg automobile traveling at 86 km/h?  What is the…

A: Kinetic energy of the moving particle depend on its mass and velocity .

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: Calculate the energy needed to heat the cube of silver, with a volume of 10.0 cm, from 18 °C to 26 "…

A: Given : Volume of silver cube = 10.0 cm3 = 10.0 mL                                   (since 1 cm3 =…

Q: How much heat, in joules and in calories, is required to heat a 28.4-g (1-oz) ice cube from −23.0 °C…

A: Given : Mass of ice cube = 28.4 g Initial temperature of ice cube = -23.0 oC And final temperature…

Q: 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?…

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

Q: A compound has a mass of 45.632 grams was added to 500.0 ml of water with an initial temperature  of…

A: The density and specific heat capacity of water at standard conditions are 1g/mL and 1 Cal/g.0C.

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

A:

Q: A 1445 kg car is traveling down the road at 96.6 km/h. While traveling at this rate of speed, what…

A: Given : Mass of car = 1445 kg Speed of car = 96.6 km/hr  To calculate :- Kinetic energy (in kJ)

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: 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: equivalent

A:

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

A:

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

A:

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

A: …

Q: The air in an inflated balloon (defined as the system) is warmed over a toaster and absorbs 130 J of…

A: The air in an inflated balloon (defined as the system) is warmed over a toaster and absorbs 130 J of…

Q: A 1467 kg1467 kg car is traveling down the road at 81.0 km/h.81.0 km/h. While traveling at this rate…

A:

Q: Which one of the following is an endothermic process? A Hydrochloric acid and barium hydroxide are…

A: The energy difference of the products and reactants is known as the energy change of a reaction.

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: How many calories are required to heat 731 g of water from 8°C to 74°C?

A: The amount of heat required is given by, q = m.C.∆T where m is the mass , C is the specific heat and…

Q: A 20-mL volume of water lost_J of energy after its temperature decreased by 15°C. The specific heat…

A: We have to find the amount of energy lost after decreasing temperature by 15°C  Given volume(v) =…

Q: A 68.0 kg person uses 214 kJ of energy to walk 1.00 km. This energy comes from “burning" glucose…

A:

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…

A:

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

A: Calories are required to raise the temperature of 225g of water from 42.0 degrees Celcius to 75.0…

Q: How many calories are needed to heat a pot of 1,600 g of water from 25 °C to 100. °C?

A: Specific Heat capacity is the amount of heat required to raise the temperature of 1 g of substance…

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…

A:

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

A:

Q: How much heat, in joules and calories, is needed to heat up 253 mL of water from 13.3 °C to 85.2 °C?…

A: Given : Volume of water = 253 mL Density of water = 1.00 g/mL Initial temperature of water = 13.3 °C…

Q: What is the heat joules required to raise the temperature of 25 grams of water from 0 degree C to…

A: We have to calculate the heat in joules and calories require to raise the temperature of water.…

Q: Let’s assume that a gallon of gasoline contains pure octane (C 8H 18) and has a density of 0.700…

A: Gasoline are hydrocarbons and they are made up of only carbon and hydrogen. Hydrocarbon on burning…

Q: heat

A:

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: The heat from a candy bar's Calories can raise the temperature of a 4.50 kg bucket of water from 4°C…

A:

Q: A 2.9-g sample of rice is placed in a calorimeter. When the sample is burned, 23 kJ is given off.…

A: Given:- 2.9 g rice on burning gives 23 kJ energy.                            2.9 g gives=> 23 kJ…

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: A 40 g sample of water is raised 10 celcius, with water having a specific heat of 4.184 J/g*C, what…

A:

Q: A nutritional bar contains 8575 nutritional calories. How many joules of energy is this?

A:

Q: If the energy in a serving of food can heat up 450,000 g of water 1 degrees C how many calories are…

A: Calories served can be calculated using the following equation: Q = m.s.ΔT Where Q = energy per…

Q: A typical candy bar contains 281 food Calories, which is 281 kcal. How many kilojoules are contained…

A: Given that : Energy provided by one candy bar = 281 kcal. We have to calculate the kilojoules of…