Using the data below, calculate ∆Hrxn for: HCl(aq) + NH3(aq) ® NH4Cl(aq) The reaction of 50.0 mL of 1.00 M HCl with 50.0 mL of 1.00 M NH3 causes a temperature rise of 6.4 ̊C in the resulting 100.0 mL of solution. The NH4Cl solution has density 1.005 g/mL and specific heat capacity 3.97 J/g ̊C. Pay careful attention to sig figs in this problem.

Q: A 25.0 g block of copper (specific heat capacity 0.380 J/g･°C) at 81.2 °C is placed into 500.0 g of…

A:

Q: A 25.0 g block of copper (specific heat capacity 0.380 J/g-°C) at 88.0 °C is placed into 500.0 g of…

A:

Q: 15. Įmagine a glassblower drops 6.1 g of glass (specific heat capacity C:= 0.380 J/g.K) into 20.0 g…

A:

Q: 1) Calculate q when 430 kJ of energy has been released from a system that performed 110 kJ of work:…

A: Hi there! Thank you for the question, but as per our guidelines we can solve only one question at a…

Q: A 455-g sample of nickel at 124oC is placed in 75.0 mL of water at 20.0oC. What is the final…

A:

Q: H.W) How much heat energy is needed to raise the temperature by 15°C of: (1)25 g water (µ=4.148 J/(g…

A:

Q: 15. A 150.0 g sample of a metal at 75.0 °C is added to 150.0 g H20 at 15 °C. The temperature of the…

A: A 150.0-g sample of a metal at 75°C is added to 150.0 g of H2O at 15.0°C H2O. The temperature of the…

Q: A 25.0 g block of copper (specific heat capacity 0.380 J/g °C) at 32.6 °C is placed into 500.0 g of…

A:

Q: A 100. mL sample of 0.100 M HC1(ag) solution is added to 100. mL of 0.200 M NH3(ag) in a coffee-cup…

A:

Q: 5.26 (a) and (b)

A: a. Given: Work done on the balloon, w = 382 J Amount of heat removed from balloon, q = 0.655 kJ

Q: A 25.0 g block of copper (specific heat capacity 0.380 J/g･°C) at 47.2 °C is placed into 500.0 g of…

A: We have to calculate the temperature change for the Copper block.

Q: When 110. g of water at a temperature of 22.3 °C is mixed with 65.9 g of water at an unknown…

A: The final temperature is achieved at equilibrium. According to law of conservation of energy, the…

Q: Two gaseous pollutants that are found in auto exhaust are CO and NO. One way to eliminate these is…

A: The standard enthalpy change in the system explains the heat transferred in a system or the heat…

Q: Limestone, CaCO3, when subjected to a temperature of 900°C in a kiln, decomposes to calcium oxide…

A:

Q: A 25.0 g block of copper (specific heat capacity 0.380 J/g･°C) at 42.4 °C is placed into 500.0 g of…

A: Given, For copper block: Mass of the copper block (mCu) = 25.0 g Specific heat capacity of copper…

Q: A 30.5 g sample of an alloy at 95.0°C is placed into 44.1 g water at 20.9°C in an insulated coffee…

A: Given: Mass of alloy = 30.5 g Initial temperature of alloy, T1 = 950C = (95+273) K = 368 K Mass of…

Q: calculate the amount of heat (in J) necessary to raise the temperature of 23.9 g benzene by 27.0 °C.…

A:

Q: A 25.0 g block of copper (specific heat capacity 0.380 J/g･°C) at 49.2 °C is placed into 500.0 g of…

A:

Q: The process of dissolving ammonium nitrate,NH4NO3, in water is an endothermic process. a)what is…

A: Given Mass of ammonium nitrate = 4.40 g Mass of water = 100 g Heat absorbed by NH4NO3 = 3.30*102 J/g…

Q: A 25.0 g block of copper (specific heat capacity 0.380 J/g･°C) at 59.8 °C is placed into 500.0 g of…

A: Given data is as follows: The mass of copper = 25.0 g The specific heat capacity of copper = 0.380…

Q: Determine the efficiency of a camp stove given the following data: mass of propane burned = 4.48 g…

A: Interpretation- We have to determine the effciency of a camp stove on the basis of data as given…

Q: 58.2 g sample of Sn metal at 91.1°C was dropped into 70.4 g of H2O at 20.7°C, and after the…

A: We will use calorimetry principle

Q: ch.6.2. calculate the internal energy change for a. one hundred(100.) joules of work is required…

A:

Q: A 25.0 g block of copper (specific heat capacity 0.380 J/g･°C) at 36.2 °C is placed into 500.0 g of…

A: We will calculate change in temperature in copper block using: Heat lost by copper block= hear…

Q: Isooctane (C8H18; density = 0.69 g/mL) is one of the many hydrocarbons that make up gasoline. Use…

A:

Q: A 45.0 g sample of an alloy was heated to 90 oC and then dropped into a beaker containing 82.0 g of…

A:

Q: Use the following information to answer the next question. Iron (III) oxide (Fe203) called rust, can…

A:

Q: A chemist mixes 500 g of lead at 500°C with 1,200 g of water at 20°C. She then mixes 500 g of copper…

A: Given : Mass of lead = 500 g Mass of water used for lead = 1200 g Mass of copper = 500 g Mass of…

Q: In an experiment, 30.0 g of metal was heated to 98.0°C and then quickly transferred to 50.0 g of…

A: The heat capacity of the metal is to be calculated.

Q: The value of ΔH° for the reaction below is -482 kJ. Calculate the heat (kJ) released to the…

A:

Q: A 53.0-g metal weight, heated to 88.50°C, is placed into 167 g of water at 19.80°C contained in a…

A: Given that : Mass of metal (mm) = 53.0 g The temperature of metal (Tm)= 88.50°C Mass of water (mw) =…

Q: Calculate q

A:

Q: A 75.0 g piece of iron (CP = 25.09 J/(mol · °C)) was heated to a temperature of 47°C and then placed…

A: Mass of iron piece , mi=75.0 gSpecific heat capacity , Cp=25.09 Jmol.°CInitial Temperature ,…

Q: A blacksmith drops a 1.5 kg piece of iron heated to 525 degrees celcius into 2 kg of water at 15…

A:

Q: Given the balanced equation below for the highly exothermic reaction of aluminum with oxygen to form…

A: Given balanced chemical equation is -

Q: The same quantity of energy is added to 10.00 g pieces of gold, magnesium, and platinum, all…

A: Heat capacity : It is the amount of heat in which the energy is required to raise the temperature of…

Q: The thermite reaction, in which powdered aluminum reacts with iron oxide, is highly exothermic.…

A: Given, The thermite reaction is : 2 Al (s) + Fe2O3 (s) → Al2O3 (s) + 2 Fe (s)   The standard…

Q: 5. A piece of copper metal of mass 6.5 kg is heated from 20.5ºC to 324.3°C. Calculate the heat…

A: The amount of heat absorbed by the piece of metal can be calculated as follows:

Q: Ethanol can be created by reacting hydrogen gas, carbon, and oxygen together. Using the following…

A: The reactions given are,

Q: 1. The neutralization reaction that occurs between baking soda (sodium bicarbonate) and vinegar…

A: The neutrilization reaction between baking soda and vinegar produced water , carbon dioxide and…

Q: A 149.2-g sample of a metal at 74.4°C is added to 149.2 g H20 at 15.5°C. The temperature of the…

A: Given: Specific heat of water = 4.18 J/g. oC Mass of metal = 149.2 g Mass of water = 149.2 g.…

Q: A cold (0.10 °C) piece of copper (4.78 g) was placed into a beaker with 53 mL of water at 31.4 °C.…

A:

Q: Use Hess’s Law to calculate the total enthalpy change for the reactions, given the following…

A: Consider the given reactions is as follows; Reaction: Hg2Cl2 (s) ⟶ 2 Hg (l) + Cl2 (g)…

Q: A 4.70-g sample of aluminum pellets (specific heat capacity = 0.89 J °C- g) and a 10.00-g sample of…

A: Since the heat lost by both metals will be used in increasing the temperature of the water  Q = mCΔT…

Q: See Periodic Table Table sugar (sucrose) is hydrolyzed to form glucose (a simple sugar) according to…

A: By applying Hess’s Law, "total enthalpy change" (delta H) for given reaction can be analyzed. To…

Q: A 5.00 g sample of an unknown substance was heated from 25.2 °C to 55.1 °C, requiring 133 J to do…

A: Mass of sample, m =5.00 g Initial temperature=25.2 °C Final temperature=55.1 °C Temperature…

Q: A 151.6-g sample of a metal at 74.7°C is added to 151.6 g  at 15.9°C. The temperature of the water…

A: Since Q = mCΔT  where Q = heat  m = mass  C = specific heat  ΔT = change in temperature = final…

Q: 6.81 Compounds with carbon-carbon double bonds, such as ethylene, C,H4, add hydrogen in a reaction…

A:

Q: III WICI a process occurs at constant external pressure. a) What is the sign of w for the system? Is…

A: Note : Since you have posted multiple questions, we are entitled to answer the first only. Please…