Acoffee-cup calorimeter initially contains 125 g water at 24.2°C. Potassium bromide (10.5 g), also at 24.2°C, is added to the water, and after the KBr dissolves, the final temperature is 21.1°C. Calculate the enthalpy change for dissolving the: salt in J/g and kJ/mol. Assume that the specific heat capacity of the solution is 4.18 J/°C. g and that no heat is transferred to the surroundings or to the calorimeter.

Q: 0.700 moles of an unknown solid is placed into water to make 150.0 mL of solution. The solution's…

A: given data is moles of the sample is 0.700 moles  volume is 150.0ml solution temperature is…

Q: by Leamin When a 6.00 g sample of RbBr is dissolved in water in a calorimeter that has a total heat…

A:

Q: When a solid dissolves in water, heat may be evolved or absorbed. The heat of dissolution…

A: Introduction:When a solid dissolves in water, heat may be released or absorbed. The heat of…

Q: neutralization of 0.28M 18 mL sodium hydroxide with 0.5 mL nitric acid of 42% at the end of the…

A: The volume of nitric acid  = 0.5 mL The volume of NaOH = 18 mL = 0.018 L (since 1 ml=0.001L) The…

Q: When 8.67 g of NaOH are added to 207 g of water in a constant pressure calorimeter, the temperature…

A:

Q: 9.06 g of M9SO, is placed into 100.0 mL of water. The water's temperature increases by 6.70°C.…

A: First, notice that the temperature of the water increased, meaning this is an EXOTHERMIC reaction.…

Q: Sodium acetate is used in many hot packs, which rely on the ability of sodium acetate trihydrate…

A: The details explanation of the question is given below

Q: 250.0 mL of 0.300 M HCl is added to 250.0 mL of 0.300 M NaOH in a coffee cup calorimeter. The…

A:

Q: Calculate equilibrium temperature.

A:

Q: A "coffee-cup" calorimetry experiment is run for the dissolution of 1.50 g of aluminum acetate…

A: To calculate the heat of the dissolution of aluminum acetate, we can use the equation: q = m × c ×…

Q: Suppose 50.0 mL of 0.50 M HCl and 50.0 mL of 0.50 M NaOH, both initially at 21.0°C, are mixed in a…

A: Heat released by a substance or heat added to a substance dpend on the change in temperatrure and it…

Q: A 2.879-gram sample of hobbitine is dissolved in water to form a total of 248.71 grams of solution.…

A: Given, Mass of hobbitine = 2.879 g. Total mass of solution = 24871 g. The change in temperature of…

Q: 7) ) Use the following data to calculate the enthalpy of solution of lithium chloride. chloride =…

A: Hf for solid lithium chloride is given by the process  Li+(g) + Cl-(g) →LiCl (s) The overall process…

Q: In the following experiment, a coffee-cup calorimeter containing 100.0 mL of H2O is used. The…

A: The heat capacity is the ratio of the energy supplied in the form of heat to the rise in the…

Q: 25.0 mL of 1.00 M HCl at 23.5oC react with 25.0 mL 1.00 M NaOH in a styrofoam calorimeter whose…

A: The energy of a system is always conserved. The amount of heat released or absorbed by the reaction…

Q: 150.0 ml. of 0.200 mol/L. HBr is added to 150.0 ml. of 0.200 mol/L. KOH. Ihe temperature of the…

A: 1- calculate the millimoles  apply specific heat capacity  , calculate the difference the…

Q: In a calorimeter, 300 mL of 0.22 mol/L of calcium chloride is mixed with 200 mL of 0.33 mol/L of…

A: The Balanced Chemical reaction equation for the sodium phosphate and calcium chloride 2 Na3PO4 + 3…

Q: When 50.0 g of an aqueous solution of reagent 1 at 24.1oC is added to 100.0 g of of an aqueous…

A: Given : Mass of reagent 1 solution = 50.0 g Mass of reagent 2 solution = 100.0 g Initial temperature…

Q: A system containing a piston goes through two stages. In the first stage, the system is compressed…

A: 1) Initial volume of the system is, (V1)=1.8 L=1.8×10-3 m3 2) The volume of the system after…

Q: In a calorimeter, 100.0 g of water, initially at 21.8 *C, is mixed with 0.300 moles of LiOH. After…

A: Given:Mass of water=100 gMoles of LiOH=0.300 molesInitial temperature=21.8oCFinal temperature=38.7oC

Q: ne salt potassium perchlorate is soluble in water. When 2.32 g KCIO, is dissolved in 104.00 g water,…

A:

Q: Suppose 100.0 mL of 1.00 M HCl and 100.0 mL of 1.00 M NaOH, both initially at 25.0°C, are mixed in a…

A: The question is based on the concept of specific heat capacity.It is defined as the amount of heat…

Q: 200.0 mL of 0.600 mol/L KOH is added to 200.0 mL of 0.600 mol/L HI. The resulting neutralization…

A: Volume= 200mLConcentration= 0.600M Initial temperature= 21.2°C Final temperature= 25.3°C Specific…

Q: A 1.69 g of NaCl are added to 111 g of water in a constant pressure calorimeter, the temperature of…

A:

Q: A 0.692 g sample of glucose (C6H12O6) is burned in a bomb calorimeter. The temperature of 575g of…

A: # The heat released by the burning of glucose will be absorbed by the calorimeter and the water. #…

Q: 0.015L of 3mol/L NaOH mixes in a calorimeter with 0.013L of 3mol/L HCl, the two initially at 295K,…

A: Given : Concentration of NaOH = 3.00 M Concentration of HCl = 3.00 M Volume of NaOH solution = 0.015…

Q: A app.101edu.co A Apps MyUSU O Outlook Canvas Labflow OneNote 101 Chem101 Tophat U USU Tutoring…

A: Given, Moles of an unknown solid = 0.700 mol. Volume of the solution = 150.0 mL. The density of the…

Q: The molar enthalpy of solution is the amount of heat absorbed or released when a mole of that…

A: Answer: This question is based on energy conservation where heat released during dissolution of a…

Q: Consider a substance with a heat of solution (AHon) of -16.7 kJ/mol. 0.00100 mol of this substance…

A: The amount of heat released on dissolution of one mole of the solute in water is equal to 16700 J…

Q: When 2.00 g of sodium hydroxide (NaOH) was dissolved in 150.00 g of water a value of 11.00oC was…

A: Given, mass of sodium hydroxide = 2.00g.            Mass of solution = 150.00g.            ∆T =…

Q: When 50.0 g of an aqueous solution of reagent 1 at 24.1oC is added to 100.0 g of of an aqueous…

A: Calorimetry is a chemical process in which we find out the heat transfer associated with the change…

Q: In a constant-pressure calorimeter, 65.0 ml. of 0,860 M H, SO, was added to 65.0 ml. of 0.420M NAOH.…

A:

Q: 25.0 mL of 1.00 M HCl at 23.5oC react with 25.0 mL 1.00 M NaOH in a styrofoam calorimeter whose…

A: Heat of neutralisation of an acid id defined as the amount of heat evolved when one equivalent of an…

Q: A student performed this experiment by mixing 50.0 mL of 2.0 M NaOH solution with 50.0 mL of 2.0 M…

A: Since the moles of acid reacting = molarity of acid X volume of acid solution in L = 2 X 50 / 1000 =…

Q: When a 6.00 g sample of KSCN is dissolved in water in a calorimeter that has a total heat capacity…

A: Given,Mass of KSCN sample = 6.00 gHeat capacity of calorimeter = 3.74 kJ . K-1Decrease in…

Q: 150 ml of .350M HCl was mixed with 150 mL of .350 M NaOH in a calorimeter of negligible heat…

A:

Q: 4.51 g of MgSO, is placed into 100.0 mL of water. The water's temperature increases by 6.70°C.…

A:

Q: Calculate the heat (AH per mole) of neutralization reaction, when 25 cm³ of 2 M HCI at 23.3°C is…

A:

Q: 1. A student determines the molar mass of acetone, CH,COH., by the method used in this experiment.…

A: It is given that:Mass of solute added = 10.5 gMass of solution = 86.4 g

Q: When 35.0 mL of 0.250 M acetic acid solution, initially at 25.00oC, is added to excess dilute sodium…

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

Q: 1). Write mathematical expression of the first law of thermodynamics. 2). Calculate, how much energy…

A: The first law of thermodynamics∆E =Q + W∆E =change of internal energyQ = Amount of heat absorbed…