Name Data Sheet 1. Data Table TA Laboratory Date Section Experiment 1-Preparing a Heating Curved Time (min) Temperature (°C) Time (min) Temperature (°C) 0 18 اما 1 2 3 55 19 64 20 67 ما 21 69 71 45 8 22 73 10 23 75 6 11 24 76 7 15 25 77 8 18 26 9 25 27 78 10 29 28 79 11 34 29 80 12 38 30 80 13 44 31 80 14 48 32 80 15 52 33 80 16 55 34 17 59 35 80 80 15 Temperature when last piece of ice melts °C From Chemistry 1505L: General Chemistry Laboratory for the Allied Health Sciences, 2nd edition, revised printing by Michael Serra. Copyright © 2006 by Kendall/Hunt Publishing Company. Excerpted and adapted by permission. 13 5 10 10 15 Time (min) 20 20 Temperature (°C) 25 30 35 2. Graphing the Heating Curve Caled

Heating Curve for Water from -35C to 115C 140 120 100 80 60 40 Water 20 0. 10 20 30 40 50 60 70 80 -20 -40 -60 Heat Added (kl) (a) Mark an X on the section of the graph that depicts ice melting. (b) Using the graph, calculate the mass of H2O that this data was calculated for. Please use two significant figures in your answer. Temperature (Degrees Celcius)

What is the melting point of the substance modeled by this heating curve? F 150 135 120 D E 105 90 75 C 60 45 30A 15 Heat (kJ) Created by E. Lee for Virtual Virginia (2021) Temp. (°C) B

1-In recovery boilers the bottom ash is removed as molten ash in temperature of about a. 400-500 °C b. 500-600 °C c. 600-700 °C d. 700-800 °C

O ||| Use the observation in the first column to answer the question in the second column. soft C W W Microsoft Microsoft 6.52.210... OSTATES OF MATTER Understanding the connection between vapor pressure, boiling... esc The enthalpy of vaporization of Substance E is smaller than that of Substance F. observation At 1 atm pressure, Substance A boils at -47. °C and Substance B boils at -8. °C. At 72 °C, Substance C has a vapor pressure of 80. torr and Substance D has a vapor pressure of 100. torr. Explanation ! 1 Q 2 Check 9,088 W question At any temperature where both substances are liquid, which has the higher vapor pressure? 280 Substance E Substance F Neither, E and F have the same vapor pressure. It's impossible to know without more information. Which has a higher enthalpy of vaporization? Substance A Substance B Neither, A and B have the same enthalpy of vaporization. It's impossible to know without more information. Which has a higher enthalpy of vaporization? #m 3 Substance C…

13 14 15 16 17 18 19 20 2 A liquid will expand to take the shape of its container. O True O False

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200 100% d. 150 e 88 lapse 100 50 b 20 30 00 a -50 Time (min) The figure above is a heating curve for a hypothetical substance. Starting at point a, the substance is heated at a constant rate. The amount of he flowing into the substance during line segment will equal the AH vaporization of this substance. ef de cd ab bc acer 00000 Temperature (C)

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A pure metallic solid has an atomic radius of 1.9 Angstrom, an FCC crystal structure and has a density of 9.72 g/ml. Calculate its molar mass in g/mol. Round your answer to 0 decimal places Please answer the question ASAP. I need the answer in 35min. Thank you.