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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…
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Q: If 7.5 g of KBr were dissolved in 100. g of water, how much heat (kJ) was involved? (2 Significant…
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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…
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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…
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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…
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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…
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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…
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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…
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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…
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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…
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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