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Suppose you burn a 2.9 g sample of potato chips. You use the heat given off from that process to heat 33.7 g of water from 16.2 oC to 20.9 oC. What is the caloric value (in kcal/g) of the potato chips?
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Suppose you burn a 2.9 g sample of potato chips. You use the heat given off...
. A 0.68-g sample of vegetable oil is placed in a bomb calorimeter and combusted. If the heat produced in the bomb calorimeter raised the water (50. g) temperature by 90.3oC, what is the caloric value of the vegetable oil in kcal/g?
QUESTION 2 The specific heat of lead is 0.11 yg-C. How much heat is given off by lead with a mass of 85 g to decrease its temperature from 200 °C to 10°C a -0.0071J b.0.0071 Oc 1776.5 d.-1776.5 QUESTION 3 A 55.0-g sample of hot metal initially at 99.5°C was added to 40.0 g of water in a Styrofoam coffee cup calorimeter. The water and calorimeter were initially at 21.0°C. If the final temperature of mixture was 30.50C, calculate...
7.44 Determine the amount of heat energy given off when the temperature of a 23.9-g sample of each of the following substances drops by 15.8°C (a) Gold (b) Iron (c) Water
Temperature and Specific Heat sub Rice Chest 3,205 g no ni 103.20 C. Energy and Nutrition 1. Type of food sample 2. Mass of aluminum can 3. Mass of aluminum can and water 4. Mass of food 5. Initial temperature of water 6. Final temperature of water 7. Mass of ash or food remaining Calculations 10.520g 22.00€ 23.5 o 2,2 coe 8. Mass of water (3 - 2) 9. Temperature change for water (6-5) 10. Heat gained by water (Show...
PLEASE SHOW ALL YOUR WORK 37.- A 0.250 g sample of a pretzel is burned. The heat it gives off is used to heat 50.0.g of water from 18.0°C to 42.0 °C. What is the caloric value of the pretzel in koal/g? 38.- If we add 450. cal of heat to 37.0 g of ethanol at 20.0°C, what is the final temperature? (SpH ethanol - 0.583 cal/g°C)
Suppose you analyze a 33.7 g sample of bleach and determine that there are 2.63 g of sodium hypochlorite present. What is the percent of sodium hypochlorite in the bleach sample?
How much heat is absorbed by a 22.0 g sample of water in going from liquid at 28.5 oC to steam at 118 oC and a pressure of 1.00 atm? Use the data in the followingtable . Express your answer in kilojoules.specific heat of water = 4.18delta H vaporization (kj/mol at 100 C) = 40.6please help this is a homework problem due i will rate!
Use the Information given below, calculate the heat change of the system when 33.7 g of water at 32.5 degree C is converted to steam at 129.1 degree C. (C = specific heat capacity) Delta H_fusion for H_2O = 6.20 kJ/mol C_ice = 2.087 j/g degree C Delta H_vaporization for H_2O = 40.7 kJ/mol C_water = 4.184 J/g degree c molar mass H_2O = 18.01 g/mol C-steam = 1.966 j/g degree C (please include the appropriate sign in your answer)
(4.) Suppose you are running a manufacturing plant building computer chips for smart phones. You supply K chips per day to your customer. The manufacturing process is not perfect, however, and with probability p each chip produced is faulty (the state of all chips are mutually independent). Unfortunately it is not known whether a chip is faulty until the customer assembles it into a phone. As a result, you must reimburse the customer Sr for each faulty chip. Suppose that...
What is the amount of heat, in calories, given off from a 5 g piece of aluminum when it cools from 80°C to 20°C? The specific heat capacity of aluminum is 0.215 cal/g∙°C. Show your work.