A list of the calorie content of foods indicates that a cup of frozen strawberries contains 224 Calories. Express this value in kJ and in J. 9.37E-1 kJ 937 J 1 cal = 4.184 J
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Is there a reason those sig figs are wrong or are my calculations just completely off?
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- 2.5 X Bb Quiz 8- Blackbox X Ya SOLUTION: A per X eploymentid=5735112480241329813180832311&eISBN=9781305862883&id=1774598910&snapshot!... Use the References to access important values if needed for this question. A bomb calorimeter, or a constant volume calorimeter, is a device often used to determine the heat of combustion of fuels and the energy content of foods. In an experiment, a 0.3163 g sample of azulene (C1₁0Hg) is burned completely in a bomb calorimeter. The calorimeter is surrounded by 1.061x10³ g of water. During the combustion the temperature increases from 23.18 to 25.79 °C. The heat capacity of water is 4.184 J g-¹°C-1. MindTap - Cenga X References The heat capacity of the calorimeter was determined in a previous experiment to be 797.7 J/°C. Molar Heat of Combustion = Submit Answer Assuming that no energy is lost to the surroundings, calculate the molar heat of combustion of azulene based on these data. C10Hg(s) + 1202(9) 4 H₂O(1) + 10 CO₂(g) + Energy ab Calorimeter…The specific heat of silver (Ag) is 0.245 J/°C g. Determine the energy required to raise the temperature of 350. g of Ag from 293 K to 400 K. > View Available Hint(s) O 9.17 kJ O 8.99 J O 400. J O 8.99 MJ Submit < Return to Assignment Provide Feedback Wo.- B. * amazon Do. 388 Type here to search cer B-1080Normal text Times New. - 12 BIUA + E- 1E = E - E - EEX ... .. 2 3 1 4 I I. c. Water from the sodium hydroxide solution 15 I . 16 ... I7 .. 6. Students collected the following temperature data for a coffee cup calorimetry experiment: Table 1. Temperature of solution with time for the reaction of baking soda with vinegar as measured in a coffee cup calorimeter. Time since start of reaction Temperatu re (°C) nent will (min) 24.6 0.5 20.9 1.1 20.1 1.4 19.3 1.7 18.5 2.1 18.4 2.5 18.3 2.9 18.2 3.5 18.4 a. Calculate AT and show your work. b. Is the reaction endothermic or exothermic? MacBook Air DII F6 80 F4 F3 &. $ 23 5 4 2 3 Y W K H G F S M V CO
- Exp 4. Results Benzoic Acid Champi Sample Weight of sample 0.4997 g 0.4107 g Pressure in the container 3000 kPa 3000 kPa Measured heat of combustion 26.28 kJ/g or 6.281 kcal/g 11.74 kJ/g or 2.806 kcal/g Table 1. Parameters obtained during the determination the heat of combustion of the sample. a. Calculate the calorific value of the sample in KJ, kcal and cal units. b. Cite the advantages and disadvantages between constant-pressure and constant-volume calorimeter. c. When 3.12 g of glucose, C6H12O6, is burned in a bomb calorimeter, the temperature of the calorimeter increases from 23.8 °C to 35.6 °C. The calorimeter contains 775 g of water, and the bomb itself has a heat capacity of 893 J/°C. How much heat was produced by the combustion of the glucose sample?How does the answer in the first example include a 0 when its not a sig fig. but in the second one it does notCD app.101edu.co I Brightspace Walmart - Hiring Ce.... # What is the specific heat of a 75.01 g piece of an unknown metal that exhibits a 45.2 °C temperature change upon absorbing 1870 J of heat? + t 4 O F3 3 E . F4 144 $ R F5 5 F6 P T A 6 Y F8 Question 5 of 12 & 7 F9 8 F10 1 ( K F11 PO O ) F12 P 7 +/-
- % Error formula : true- exp x 100 true Part 1: Calculate the specific heat of Bronze using coffee cup calorimeter. Bronze Data Mass Of Metal (Bronze) Timetal) Mass Of Water |Ti120) Tawater & metal) (5 pts) 19.9797 g 200 °C 150.00 g 25.00 °C 27.32 °C Calculations: You must show ALL work here. 1. Calculate qH2O QH20 = mH,0 x SH#,0 x AT Qh,0 = 2. Calculate the specific heat of Bronze. QH20 = -qmetal = 9metal = mmetal X SHH20 x ATmetal 9metal SHmetal (massmetal x AT) (19.9797 g x (27.32 – 200.00)°C) SHmetal g°C 3. % error Calculation (the true value for SHbronze is 0.435 g°C81 REPORT FOR HESS'S LAW EXP. (cont.) Jasmin Gonzaler NAME С. Experimental Enthalpy of Formation of Magnesium Oxide by Summation Eq. Balanced Chemical Equations (see Introduction) AHan (kJ/mole) AH, = (experimental) ΔΗ- (experimental) AH3 = (from text) ΔΗ- (by summation) SAMPLE CALCULATIONStab File esc ns lock Ooop X 39 c) x Gheat heat X Ⓒliquid X N. AskYX N. AskYX A ALEK X b STAT X CI Che X C www-awu.aleks.com/alekscgi/x/lsl.exe/1o_u-IgNslkr7j8P3jH-IvTqeviKFP6W0cqJcWJdIACROQwyw24GWHIn7gZDVjOY1PIGdwmoRjhTWafIMXzDVQ21WWbzcCZqUs09eN... Omall O YouTube Maps View History bookmarks Profiles 180 window Help O STATES OF MATTER Sketching a described thermodynamic change on a phase... pressure (atm) aleks X 1 Explanation ← v The pressure on a sample of pure X held at -40. °C and 2.09 atm is decreased until the sample melts. The pressure is then held constant and the temperature is increased by 61. °C. On the phase diagram below draw a path that shows this set of changes. Q A 2 Z 200 temperature (K) Check W 400 S # 3 X C с H E D 600 $ 4 C X R F % 5 S G Search or type URL stv V T F MacBook Pro 6 G 4 Y B & 7 H ☆ U N * 8 J + O▬▬▬▬0/5 Ⓒ2022 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center | Accessibility XO AO W ( 9 M ( @ K O 0 Calcu X < 1 He 60% L M Math X Aa Wed…
- Measurement Trial #1 Trial #2 Trial #3 mass of water/calorimeter/lid 82.73g 82.02g 84.46g mass of empty calorimeter & lid: 8.12g 8.16g 8.18g Mass of Water 74.61g 73.86g 76.28g Tf of water (in calorimeter) 26.8c 26.1c 26.4c Ti of distilled water: 20.6c 20.4c 20.3c ΔT water 5.48c 5.7c 6.1c Determine the amount of heat transferred from the metal cylinder to the water in the calorimeter for each trial using the equation below. The change in temperature used for this calculation is the change in temperature of the water (ΔTwater). Show your work. Do not round your answers for these calculations. qwater = mwater ´ Cp of water ´ ΔT waterGAO GAO-03 X x M MHE Re X G calculato x Content X 0 mySigTa XB Karl's Sn X M (no subj X b Answere X delta ec X New Tab now.com/ilrn/takeAssignment/takeCovalentActivity.do?locator=Dassignment-take [References] In a coffee-cup calorimeter, 110.0 mL of 1.3 M NAOH and 110.0 mL of 1.3 M HCl are mixed. Both solutions were originally at 20.5°C. After the reaction, the final temperature is 29.2°C. Assuming that all the solutions have a density of 1.0 g/ cm° and a specific heat capacity of 4.18 J/°C g, calculate the enthalpy change for the neutralization of HCl by NaOH. Assume that no heat is lost to the surroundings or to the calorimeter. ΔΗ- kJ/mol %3D Submit Answer Try Another Version 3 item attempts remaining Previous Next Email Instructor Save and Exit20 F3 $ 00 DOD DOD Part A F4 one cup of popcorn that produces 155 kJ when burned in a calorimeter Submit Part B IVE ΑΣΦ Submit Provide Feedback % Request Answer a sample of butter that produces 30.6 kJ when burned in a calorimeter 15. ΑΣΦ Request Answer F5 < étv N O MacBook Air F6 HER & A kcal F7 kcal ▶11 F8 W X F9 F10