1. A 0.656 g sample, initially at a temperature of 30 deg. C, of naphthalene was ignited in a bomb calorimeter. In a separate calibration experiment, a sample of 0.825 g sample of benzoic acid produced a temperature rise of 1.94 deg. C. Use this information to determine the final T in the naphthalene experiment.

Q: What is the purpose of filling the calorimeter with oxygen? Explain. (maximum of 2 sentences).

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

Q: The complete combustion of salicylic acid releases 21.90 kJ of energy per gram of salicylic acid. In…

A: We have to calculate the energy of combustion per gram of unknown compound.

Q: 2. A 1.07 g sample of sulfur was burned in a bomb calorimeter with calorimeter constant of 2.03…

A: Mass of sulfur sample = m = 1.07 g Calorimeter constant = C = 2.03 Kcal/°C Temperature change = ∆T =…

Q: The reaction of hydrochloric acid and sodium hydroxide is a very rapid and exothermic reaction. The…

A: Given:Molarity of HCl (MHCl) = 1.125 M.Volume of HCl (VHCl) = 50.0 mL= 0.05 L.Molarity of NaOH…

Q: f 112g of water at 54oC is mixed in a calorimeter with a 95g sample iron at 139oC, what is the final…

A: Given data: Mass of water(m1) = 112 gms       Its temperature(T1) = 54°C Mass of iron(m2) = 95 gms…

Q: A 2.800 g sample of acetylene is found to release 830 kJ when burned. If the same size sample is…

A:

Q: 35g of Gold (sp = 0.0308 cal/goC) at 100oC is added to 40g of Water at 22oC in a Coffee-Cup…

A: Given, Mass of gold, mgold = 35 g Initial temperature of gold, Tgold = 100 °C Specific heat of gold,…

Q: A 1.800-g sample of phenol 1C6H5OH2 was burned in a bombcalorimeter whose total heat capacity is…

A: Given: Phenol 1 mole of C6H5OH2 was burned in a bomb calorimeter.

Q: Briefly explain: - why is it necessary to revise the heat capacity of the calorimeter when a solid…

A: A question based on thermochemistry that is to be accomplished.

Q: You fill the calorimeter with 55.5g of water at 16.5°C, heat the 15.5 g “silver” coin to 100.0°C,…

A: =15.5 × 0.240 ×(100-22) J =291.096 J

Q: 3. Naphthalene (C1,Hg), which has a heat of combustion equals to -5183 kJ/mol was used as standard…

A: Heat of combustion of naphthalene = -5183 KJ/mol Temperature change = 0.51 ℃ = 0.51 K We have to…

Q: 7 A 2.200-g sample of quinone (C,H4O2) is burned in a bomb calorimeter whose total heat capacity is…

A:

Q: When 0.514 g of biphenyl, C12H10, undergoes combustion in a bomb calorimeter, the temperature rises…

A: Given : Mass of C12H10 combusted = 0.514 g Initial temperature of calorimeter and water = 25.8 oC…

Q: What will be the final temperature of a 418−g sample of water, initially at 15.0 °C, after 61.7 kJ…

A:

Q: a calorimeter is to be calibrated: 51.203g of water at 55.2 C is added to a calorimeter containing…

A: Given: The quantity of water added to the calorimeter is 51.203 g. The temperature of water added to…

Q: A 2.200-g sample of quinine is burned in a bomb calorimeter whose total heat capacity is 7.854 KJ/o…

A: Given,Mass of quinine sample = 2.200g.Heat capacity = 7.854kJ/0C.Initial temperature = 23.440C.Final…

Q: The complete combustion of salicylic acid releases 21.90 kJ of energy per gram of salicylic acid. In…

A:

Q: Two solutions, initially at 24.60°C, are mixed in a coffee cup calorimeter (Ccal = 155 J/ °C). When…

A: Given, Initial temperature, Ti=24.60°C Heat capacity of calorimeter, Ccal=155J°C Volume of…

Q: The addition of hydrochloric acid to a silver nitrate solution precipitates silver chloride…

A:

Q: Two solutions, initially at 24.60°C, are mixed in a coffee cup calorimeter (Ccal = 155 J/ °C). When…

A:

Q: Thermochemistry - Measurements in constant pressure calorimeter The calculation of the error in the…

A: The device which is used to determine the enthalpy change of a chemical reaction is known as…

Q: 18) A 6.55 g sample of aniline (C6H5NH2, molar mass = calorimeter. If the temperature rose by…

A:

Q: extrapolation of a curve. 2. A student determined the calorimeter constant of the calorimeter, using…

A:

Q: The amount of heat energy released when zinc metal reacts with hydrochloric acid: Zn(s) + HCl(aq) →…

A: In a process, if heat is absorbed then the sign of ∆H will be positive.

Q: A student constructs a coffee cup calorimeter and places 50.0 ml of water into it. After a brief…

A: IMPORTANT POINTS: Heat absorbed or lost (Q)has the formula:          Qabs/lost =m*C*△T      ;…

Q: Calculate the heat capacity of Al in J/mol °C.

A:

Q: Temperature of cold water (°C) 3.0 Temperature of hot water (°C) 89.0 Volume of cold water (mL) 95.1…

A: The heat gained/lost by water is given by the equation- q=m x c x dT where, q is the heat…

Q: 1. Why are styrofoam cups often used as improvised calorimeter? What would be the effect on the…

A: We know that, The specific heat capacity of Styrofoam is calculated experimentally as 1.131 J/goC.…

Q: A quantity of 1.922g methanol, CH3OH was burned in bomb calorimeter. Consequently, the temperature…

A: Given:The amount of methanol is 1.922 g The change in temperature is 4.20oC The heat capacity of the…

Q: 1. Determination of heat capacity of calorimeter: 50.0 mL. H2O at the initial temperature of 23.5 °C…

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

Q: Enter your answer in the provided box. A quantity of 1.922 g of methanol (CH,OH) was burned in a…

A: The heat released by the burning of the methanol is gain by the calorimeter and the temperature of…

Q: Under constant-volume conditions, the heat of combustion of glucose is 15.57 kJ/g. A 3.500-g sample…

A:

Q: of the calorimeter was evious experiment to be 892.3 J/

A: Dear student I have given answer to your question in the image format.

Q: A bomb calorimeter is supplied with 25.0 kJ of energy, and a 1.75 oC increase in temperature…

A: Energy E = 25.0 kJ  Change in temperature ∆T = 1.75 °C  When unknown fuel undergoes combustion Heat…

Q: The addition of hydrobromic acid to a silver nitrate solution precipitates silver bromide according…

A: we need to calculate ∆Hrxn

Q: Two solutions, initially at 24.60°C, are mixed in a coffee cup calorimeter (Ccal = 155 J/ °C). When…

A:

Q: A 0.500 g sample of C7H5N2O6 is burned in a calorimeter containing 600. g of water at 20.0∘C. If the…

A: The molar mass of the compound is 213.12 g/mol. The number of moles of the compound is calculated…

Q: A 125 mL sample of 1.33 M HCl and 225 mL of 0.625 M NaOH, both initially at 24.4 C are allowed to…

A: HCl + NaOH → H2O + NaCl          ΔH = -57.2 kJ (125 mL) x (1.33 M HCl) = 166.25 mmol HCl( 225 mL) x…

Q: A 1.10 g sample of octane, C8H18, is combusted in a bomb calorimeter and the temperature rises by…

A: The mass of octane in the reaction is 1.10 g The change in temperature of the reaction is 62oC The…

Q: Measurements show that the energy of a mixture of gaseous reactants increases by 316. kJ during a…

A: The relation between change in enthalpy, work, and internal energy is given as: ∆H=∆U+w…

Q: 6, A 0.213 g sample of an organic compound with a molar mass of 386.0 g/mol was burned in the bomb…

A: D) -1.9×104 KJ/mol Given that, Mass of organic sample = 0.213 g Moles of organic sample n = 0.213…

Q: Consider the reaction.   Al (s) + HCl (aq) → AlCl3 (s) + H2 (g)   The following data were…

A: The calorimeter is an object used for calorimetry, or a device used to quantify the heat of chemical…

Q: Consider a mixture of air and gasoline vapor in a cylinder with a piston. The original volume is 36…

A:

Q: A student has calibrated his/her calorimeter and finds the heat capacity to be 14.8 J/°C. S/he then…

A:

Q: When 1.151 grams of sucrose (Molar mass 342.3 g/mol) is burned in a bomb calorimeter, the…

A: The molecular formula of sucrose is C11H22O11. The molecular weight of sucrose = 342.3 g

Q: A new material was created in the lab.  In order to determine the molar heat capacity, Cm, of the…

A:

Q: 9.5x10^4 cal

A: Heat content (q) = ms□T   Where  , m = mass  s = heat capacity  □T = Temperature change  Heat…

Q: 100.0 mL of 3.0 M HCl can be neutralized with exactly 200.0 mL of 1.5 M NaOH. If this reaction is…

A: