When 1.045 g of CaO is added to 50.0 mL of water at 25.0 ∘C in a calorimeter, the temperature of the water increases to 32.3 ∘C. Assuming that the specific heat of the solution is 4.18 J/(g⋅∘C) and that the calorimeter itself absorbs a negligible amount of heat, calculate ΔH

Q: In a constant‑pressure calorimeter, 65.0 mL of 0.350 M Ba(OH)2 was added to 65.0 mL of 0.700 M HCl.…

A: Given:65.0 mL of 0.350 M Ba(OH)265.0 mL of 0.700 M HCl.Ba(OH)2 + 2 HCl → BaCl2 + 2 H2O

Q: Determine the mass of CO2CO2 produced by burning enough carbon (in the form of charcoal) to produce…

A: The balanced chemical reaction is  C(s)+O2 (g)→CO2(g); ΔrH∘=−393.5 kJ-mol-1  The mass of CO2…

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

A: The specific heat can be defined as the amount of heat per unit mass that is needed to raise the…

Q: When a 4.25-g sample of solid ammonium nitrate dissolves in 60.0 g of water in a coffee-cup…

A: Given,Mass of sample = 4.25-gInitial temperature = 22 degree CelsiusFinal temperature = 16.9 degree…

Q: When 0.596 g of biphenyl (C12H10) undergoes combustion in a bomb calorimeter, the temperature rises…

A: Mass of biphenyl =0.596 g Change in Temperature(T) = 30.4°C —26.4°C = 4.0°C heat capacity of the…

Q: If a system has 475 kcal475 kcal of work done to it, and releases 5.00×102 kJ5.00×102 kJ of heat…

A:

Q: When 5.40 g of a solid mixture composed of NH4Cl and CaCl2 was dissolved in 100.0 mL of water, the…

A: Given Mass of NH4Cl = 1.78 g Mass of CaCl2 = 3.26 g

Q: Phthalates used as plasticizers in rubber and plastic products are believed to act as hormone mimics…

A: Given data,ΔHcomb for dimethyl phthalate is –4685 kJ/molThe mass of the dimethyl phthalate is 1.10…

Q: Phthalates used as plasticizers in rubber and plastic products are believed to act as hormone mimics…

A: ΔHcomb =   Ccalorimeter ΔT nNote :  this formula is used in order to maintain the consistency of the…

Q: When 0.500 g of 1-propanol, C3H8O, is burned in a bomb calorimeter, the temperature rises by 11.2 ∘C…

A:

Q: CI F C-CI F-F + CI- -Cㅡ-CI -C-F F-F CI-CI ČI +

A: Given- CCl4(g)+2F2(g)->CF4(g)+2Cl2

Q: Phthalates used as plasticizers in rubber and plastic products are believed to act as hormone mimics…

A: heat of combustion is the heat released during combustion process

Q: hthalates used as plasticizers in rubber and plastic products are believed to act as hormone mimics…

A:

Q: Two pollutants that form in auto exhaust are CO and NO. An environmental chemist must convert these…

A: The question is based on the concept of Hess's law.   It states that the net enthalpy change during…

Q: A 100.0 mL sample of 0.300 M NaOH is mixed with a 100.0 mL sample of 0.300 M HCl in a calorimeter.…

A:

Q: Calculate the value of ΔH (in kJ) for the reaction, 2AR3 (g) + Q (s) → A2R4 (g) + QR2 (s) given…

A: According to law of Laplace and Lavoisier: If any thermochemical balanced reaction is reversed, then…

Q: Consider the following reaction: 2 Mg(s) + O2(g) ⟶⟶ 2 MgO(s)…

A: There is a  the  reaction  :- 2 Mg(s) + O2(g) ------------> 2 MgO(s).…

Q: oxygen in a bomb calorimeter. The calorimeter, which alone had a heat capacity of 2.67 kJ/oC,…

A: Heat(q) = m.c..□T Using energy conservation,  Heat loss by Acid = Heat gain by water + Calorimeter…

Q: If a system has 225 kcal225 kcal of work done to it, and releases 5.00×102 kJ5.00×102 kJ of heat…

A: Given, w = 225 kcal q = - 5.00*102 KJ The negative sign indicates the energy is released by the…

Q: Methanol (CH3OH) is often used as a fuel in high-performance engines in race cars. Using the data in…

A: Combustion :- The process of burning a compound in excess of air or oxygen is called combustion The…

Q: When 1.045 g of K2O is added to 50.0 mL of water at 25.0 ∘C in a calorimeter, the temperature of the…

A: Information of question

Q: A piece of metal weighing  5.10 gg   at a temperature of  48.5 ∘C∘C   was placed in a calorimeter in…

A:

Q: Calculate the value of ΔH (in kJ) for the reaction, 2AR3 (g) + Q (s) → A2R4 (g) + QR2 (s) given…

A: The enthalpy of reaction of given equation can be find using Hess's law of thermodynamics.…

Q: 5.00 g of potassium hydroxide (molar mass = 56.1 g/mol) dissolves in 100.0 g of water and the…

A: The question can be solved by giveb formula,  Q=m×C×dT where Q = heat energy (Joules, J),  m = mass…

Q: Phthalates used as plasticizers in rubber and plastic products are believed to act as hormone mimics…

A: Heat absorbed by calorimeter=Ccaloimeter(Tf-Ti)Molar mass of  dimethylphthalate (C10H10O4)=191.184…

Q: When 0.418 gg of pentene, C5H12C5H12, is burned in a bomb calorimeter the temperature rises by…

A: The objective of this question is to calculate the combustion energy (ΔE) for pentene, C5H12, when…

Q: Write the balanced equation (total ionic) for the

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Q: 49.85 grams of solid silver carbonate is dissolved in the calorimeter and the temperature goes from…

A:

Q: When 1.045 g of CaO is added to 50.0 mL of water at 25.0 PC in a calorimeter, the temperature of the…

A:

Q: When 1.553 g of liquid hexane (C6H14C6H14) undergoes combustion in a bomb calorimeter, the…

A: The reaction taking place can be written as (C6H14 = hexane), => C6H14 + O2 -------> CO2 + H2O…

Q: The heat of combustion of 1,4-butanediol (C4H10O2) at 298.15 K, determined in a bomb calorimeter is…

A: Given  Heat of combustion 1,4-butadiene = 43.5 KJ/g

Q: 1.87 g sample of acetic acid (HC2H3O2) was burned in excess oxygen in a bomb calorimeter. The…

A: Mass of acetic acid = 1.87g Molar mass of Acetic acid = 60g/mol Heat capacity of calorimeter =…

Q: 10.00 mL of 1.00 M HCl solution i mperature rises from 22.45 °C to 23 same as that of 125 g of…

A:

Q: A cylinder contains a mixture of gases under constant atmospheric pressure. The gases undergo a…

A: It is given that a cylinder contains a mixture of gases at constant atmospheric pressure and the gas…

Q: When 0.475 g of biphenyl (C12H10)  undergoes combustion in a bomb calorimeter, the temperature rises…

A: Answer: Bomb calorimeter is a constant volume calorimeter. Therefore, heat exchange calculated in it…

Q: 150 mL of a 0.728 M HCl aqueous solution is mixed with 150 mL of 0.364 M Ba(OH)2 aqueous solution in…

A: Answer:This question is based on the principle of energy conservation where energy lost during the…

Q: Consider the following reaction:   2 HCl(aq) + Ba(OH)2(aq)  ⟶⟶ BaCl2(aq) + 2 H2O(l)          ΔH=…

A: When the acid and base that is one equivalent to both of the components undergoes neutralization…

Q: Calculate the change in internal energy (ΔU) for a system that is giving off 25.0 kJ of heat and is…

A: The first law of thermodynamics states that the change in internal energy of a system equals the net…

Q: A 2.50 g sample of powdered zinc is added to 100.0 mL of a 2.00 M aqueous solution of hydrobromic…

A: Given weight of Zn = 2.50 g [HBr] = 2M Volume of HBr = 100mL= 0.1 L No. Of moles of HBr = 2 x 0.1 =…

Q: When 1.55 g of liquid pentane (C5H12) combusts in a bomb calorimeter, the temp rises from 26.0ºC to…

A:

Q: If we measure the heat change (q) of everything in a system except the calorimeter, we can use the…

A: Given: mass of hot water = 5.59 g mass of cold water = 5.62 g C = 4.186 J/g°C Temperature of hot…

Q: When 1.022 g of anthracene, C14H10, is combusted in a bomb calorimeter that has a water jacket…

A: It  involves usage of calorimetry technique to calculate enthalpy change for the reaction.…

Q: Determine the change in enthalpy for the following reaction: SnO2(s) + 2 H2(g) → Sn(s) + 2 H2O(l)…

A: Given data: ∆Hac,SnO2(s) = -1381.1 kJ/mol ∆Hac,Sn(s) = -302.1 kJ/mol ∆Hac,H2(g) = -435.3 kJ/mol…

Q: A critical reaction in the production of energy to do work or drive chemical reactions in biological…

A: Consider the reaction,