HEAT OF NEUTRALIZATION NAME: POST LABORATORY QUESTIONS 1. Specific to this experiment, list two reasons why your data contains an experimental error. a. b. 2. A 15.00 gram sample of ammonium chloride (NH4CI) was dissolved in 100.00 grams of water. How much heat is produced by the dissolution (absorbed from the solution) if the solution temperature goes from 22.0 oC to 1.0 oC. The specific heat of the solution is 4.18 J/g °C 3. 300.0 mL of a 2.500 M solution X was mixed with 300.0 mL of a 2.500 M solution Y in a calorimeter. Both of the solutions were at the same temperature initially. Determine the heat of neutralization (kJ/mole) if the temperature goes from 12.0 °C to 29.0 °C. Assume a molar ratio of 1:1.The specific heat of the solution is 4.281 J/g °C. The density of the mixture is 1.050 g/mL. 4. Sketch a crude time-temperature graph for an endothermic reaction.
Question 3
Want to see the full answer?
Check out a sample Q&A here
Related Chemistry Q&A
Find answers to questions asked by students like you.
Q: Design a simple investigation to determine the effect on boiling point or freezing when a solid is…
A: When a solid is dissolved or immersed in water the solution will Boil at Higher temperature then…
Q: the temperature of the salt and water is 23.72 °C. After the salt has completely dissolved, the…
A: Given : Heat gained by the solution = 3116 J
Q: A geochemist in the field takes a small sample of the crystals of mineral compound X from a rock…
A: Given thatvolume of distilled water = 800 mL = 0.8 Lmass of the crystals after drying = 0.032 Kg =…
Q: Discuss how the water in a dam converted its energy. What happens to this energy after conversion?
A: Hydroelectric power is a renewable energy source which uses the power of moving water to produce…
Q: Given that 158.05 g of solution increased in temperature by 4.82 "C. how much heat was gained by the…
A: Given that: Mass of solution=158.05grams Change in temperature=4.82°C Specific heat of…
Q: If 7.5 g of KBr were dissolved in 100. g of water, how much heat (kJ) was involved? (2 Significant…
A: Click to see the answer
Q: If 7.5 g of KBr were dissolved in 100. g of water, how much heat (kJ) was involved? (2 Significant…
A: Click to see the answer
Q: 1.The quantity of heat evolved or absorbed is directly proportional to the mass of the solute that…
A: Hey, since there are multiple questions posted, we will answer first question. If you want any…
Q: At the end of the neutralization reaction of 0.5 mL nitric acid with 0.28 m 18 mL sodium hydroxide…
A: Given: Volume of nitric acid = 0.5 mL Concentration of sodium hydroxide = 0.28 M Volume of sodium…
Q: When 26.6 g of potassium chloride dissolves in 300.0g of water, the temperature drops from 26.1…
A: Chemical equation for solid potassium chloride dissociating into ions when it dissolves in water is…
Q: when 20 grams of a salt is dissolved in 95 grams of water the temperature of the solution decreases…
A: given; mass of water = 95 g temperature change = delta T = 40-30 = 10°C specific heat = 1.1 cal/g…
Q: A geochemist in the field takes a small sample of the crystals of mineral compound X from a rock…
A: Click to see the answer
Q: When 20 grams of a salt is dissolved in 95 grams of water, the temperature of the solution decreases…
A: Given: Mass of salt (m) = 20 g Specific heat capacity (c)=1.1 cal/g°C Initial temperature (T1)= 40°C…
Q: A hydrated barium hydroxide compound is heated to remove all the water of hydration. The mass of…
A: Suppose, number of water molecule present in the hydrated compound is x Molecular weight of barium…
Q: Determine the heat released or abosorbed in J during the dissolving process when calcium chloride…
A: Click to see the answer
Q: When 3.02 g of NH4Cl is dissolved in enough water to make 20.05 mL of solution, the temperature…
A: To find enthalpy change, first find q of reaction by using formula of q. Then divide the calculated…
Q: A 7.37 g sample of an unknown salt (MM = 116.82 g/mol) is dissolved in 150.00 g water in a coffee…
A: Click to see the answer
Q: 1. Consider the combustion of liquid C₅H₈ in oxygen gas to produce carbon dioxide gas and water…
A: #1: Liquid C5H8 undergoes complete oxidation to form CO2(g) and H2O(g) as products. Hence C5H8(l)…
Q: A 7.03 g sample of an unknown salt (MM = 116.82 g/mol) is dissolved in 150.00 g water in a coffee…
A: We know during the process of any reaction, heat gained = heat lost . For above the formula used…
Q: A solution formed by combining 10 mL of solution A and 40 mL of solution B. Find out the heat of…
A: Specific heat ( s) :- The amount of heat required to rise the temperature of 1 g of a substance…
Q: Preparation of 0.25N HCl Objective: Apparatus and Materials: Procedure: Compute for the volume of…
A: 0.25N HCl 1 litre N stands for normality To prepare normal solution, we take gram equivalent weight…
Q: when 20 grams of salt is dissolved in 95 grams of water, the temperature of the solution decreases…
A: When the solute is dissolved in the solution and the amount of heat released is known as the heat of…
Q: If the dissolution of a salt in water is an endothermic reaction, how will the temperature of the…
A: Click to see the answer
Q: marshmellow 13.60g 114.87a 7.3c mmarshmel marshmellc 15.005a 112.20g 0.3c Kind of Food 13.831g…
A: To solve for heat change for water and can (kcal) and the heat released by food kcal/g
Q: If the heat of solution for a chemical was -22,000 cal,g when 2.0 g of solid was dissolved, the…
A: Calculation of Heat of solution.
Q: Heat of Neutralization Reaction between a Strong Acid and a Strong Base In calculating the mass of…
A: According to Q&A guidelines of Bartleby, we are supposed to answer only the first 3 sub-parts of…
Q: Calcium carbonate =135mg Magnesiumcarbonate=100mg Sodium chloride=50mg 10% starch paste qs Magnesium…
A: Enlarge the formulation to make 5 tablets.
Q: Please answer completely with formula, given and complete solution so that i will understand. Tyms❤️…
A: In coffee cup calorimeter heat of reaction is given below. qrxn=-m×Cs×(Tf-Ti) Where m is mass of…
Q: How would I solve for the mass ( in grams )
A: Given,Heat absorbed = 45.5 JMass of sample = ?Specific heat of sample = 0.82 J/g KChange in…
Q: When 20 grams of a salt is dissolved in 95 grams of water, the temperature of the solution decreases…
A: Given, mass = 20 grams + 95 gram = 115 gram ∆T=T2 - T1 = 30-40 =-10 oC c = 1.1cal/g oC ∆Q…
Q: Consider the reactions 3C(graphite) + 4H2(g) → C3H8(g) AH = -103.8 kJ %3D C(graphite) + O2(g) →…
A: The given thermochemical equations are: 3C(graphite) + 4H2(g) ----> C3H8(g) ; ∆H = - 103.8 kJ…
Q: Solubility Curve for KNO3 150 140 130 120 110 100 KNO3 90 80 70 60 50 40 30 20 10 10 20 30 40 50 60…
A: The solution is as follows :
Q: The dissolution of NH4Cl in water is an endothermic process. If the initial temperature of water is…
A: Interpretation - To determine the expected temperature of the aqueous system when the dissolution…
Q: Which of the following is true about enthalpy changes when a salt dissolves in water? if the…
A: Enthalpy of the reaction changes when heat is absorbed or released from the reaction.
Q: If you forget to weigh the calorimeter and contents at the end of a Part 1 run, you will: Select…
A: While performing an experiment, human errors must be avoided. For that, the experiment must be…
Q: The generic reaction X2(g) + Y2(g) → 2XY(g) has an enthalpy of -212 kJ. How many moles of XY were…
A: Given, Chemical Reaction : X2(g) + Y2 (g) ---> 2 XY (g) ∆H = -212 KJ
Q: 1. What is one potential use for substances that have a large amount of chemical potential energy?…
A: Energy can be expressed in various units such as cal, Kcal, Joules, kilojoules etc. The given…
Q: A freshman recorded the temperature of their final solution in "the neutralization of hydrochloric…
A: Click to see the answer
Q: Convert the heat of neutralization of acetic acid from -52.2 kj/mmol to calories per %3D millimole…
A: The heat of neutralization of acetic acid = - 52.2 KJ /mmol We know ; 1 Kilo Joules = 1000 Joules…
Q: How are formation and dissociation constants related? inverses of each other the product of them…
A: Interpretation : We have to explain what is formation and dissociation constant.
Q: Determine the amount of heat (in kJ) given off when 49.0 g of ammonia (NH 3) are produced according…
A: Thermodynamic is the branch of chemistry that mainly deals with the heat transfer between system and…
Q: Write and balance the equation for the complete combustion of ethane, C, H,. Phase symbols and…
A: According to the Law of conservation of mass " all atoms of different elements must be equal on both…
Q: How much energy in kJ is released in burning 2.97 mL of gasoline (assuming that all of it is octane…
A: Click to see the answer
Q: How much energy in kJ is released in burning 2.5 mL of gasoline (assuming that all of it is octane…
A: To solve this problem first we have to calculate the mole of octane by using its volume, density and…
Q: If the solid NaCl is dried and weighed only once, what error will likely happen? How would this…
A: The number of times solid NaCl is dried and weighed whose impact on the result of percent yield is…
Q: How much energy in kJ is released in burning 2.83 mL of gasoline (assuming that all of it is octane…
A: Click to see the answer
Q: The energy diagram shown represents the chemical reaction between solid ammonium chloride and solid…
A: Reaction given 2NH4Cl(s) +Ba(OH)2 ⋅8H2O(s)→2NH3 (aq) +BaCl2 (aq) +10H2O(l) ∆H(reaction) = 54.8 kJ…
Q: The energy diagram shown represents the chemical reaction between solid ammonium chloride and solid…
A: Click to see the answer
Q: 300mL of a 2.500 M solution X was mixed with 300.0 mL of a 2.500 M solution Y in a calorimeter. Both…
A: Given that, Volume of 0.2500 M X solution = 300 mL Volume of 0.2500 M Y solution = 300 mL Total…
Q: How much energy in kJ is released in burning 2.5 mL of gasoline (assuming that all of it is octane…
A: Click to see the answer
