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- Calculate the amount of heat needed to boil 151. g of acetic acid (HCH,CO₂), beginning from a temperature of 17.0 °C. Round your answer to 3 significant digits. Also, be sure your answer contains a unit symbol. 0 0.Calculate the amount of heat needed to boil 45.2g of acetic acid (HCH3CO2), beginning from a temperature of 57.1°C. Round your answer to 3 significant digits. Also, be sure your answer contains a unit symbol.The large specific heat of water limits large fluctuations in temperature near bodies of water during the summer months. True False
- Dr. Lussier enjoys a bath after a long day. After filling his tub with exactly 216.0 L of hot water, he finds that the initial temperature is 63.3°C - which is far too hot. If he would like his bath to be 34.2°C, how many kilograms of ice at exactly 0.00°C must he add? Assume: The density of water is O.991 g mL-1, Cwater = 4.18 J g-1 °C•1, and AfusH° (ice) = 6.02 kJ mol1, molar mass water: 18.02 g mol-1 %3DYou are asked to calibrate a 25.00 mL volumetric pipet. You determine the temperature of your distilled water is exactly 30 degrees celsius. You carefully determined the mass of a clean, dry beaker and found it was 60.1703 g. You pulled the water up to the mark and transferred this to the beaker and found that the new mass was 85.2263 g. What is the actualy volume of the pipet? I tried answering the question above by doing 85.2263 - 60.1703 = 25.056 g I then used 25.056 and multipled it with .995646 (which is the density of water at 30 degrees celsius I believe) The answer I got is 24.947 I am not sure if I am just doing the problem wrong or if it is simply my signifcant figures that are off? Please help :))Given the following thermochemical equations: 2 OF2 (g) →→→ 02 (g) + 2 F2 (g) 2 CIF (g) + O2 (g) → C120 (g) + OF2 (g) CIF 3 (g) + O2 (g) → Cl20 (g) + 3/2 OF2 (g) AH = -49.4 kJ AH = +205.6 kJ AH = +266.7 kJ Calculate the enthalpy change (in kJ) for this reaction: CIF (g) + F2 (g) → CIF3 (g) Show your complete solution. Express your answer in two decimal places.
- Calculate the amount of heat needed to melt 98.7 g of solid acetic acid (HCH,CO) and bring it to a temperature of 70.5 °C. Be sure your answer has a unit symbol and the correct number of significant digits. 0Calculate the amount of heat needed to melt 46.4 g of solid acetic acid (HCH,CO,) and bring it to a temperature of 70.9 °C. Be sure your answer has a unit symbol and the correct number of significant digits. 00 x10 dlo Ar9.0 g of cream at 13.2 °C are added to an insulated cup containing 150.0 g of coffee at 94.6 °C. Calculate the equilibrium temperature of the coffee. You may assume no heat is lost to the cup or surroundings, and that any physical properties of cream and coffee you need are the same as those of water. Be sure your answer has 3 significant digits. x10 ?