A solid is dissolved in a coffee cup calorimeter. Which of the observations suggest that the process is endothermic?     A temperature of the solution dereases     A temperature of the solution increase     A temperature of the solution stays

Q: Are the following processes exothermic or endothermic?a. Fuel oil is burned in a furnace.b. When…

A: A chemical process can either be exothermic or endothermic depending upon whether the energy in the…

Q: A Chemistry teacher is preparing solutions for a classroom activity. For the scenarios below,…

A: Here we have to predict whether the following dissolution of the ionic compounds in water are…

Q: 10.0g of ice at 0.00*C is mixed with 25.0 g of water at 35.00*C in a calorimeter. What is the final…

A: Here we need to calculate Tf means final temperature. msample= 10.0g  c is the specific heat of…

Q: Determine the final temperature when a 25.0 g piece of iron at 85.0 °C is placed into 75.0 grams of…

A: The amount of heat released from iron is absorbed by the water to raise its temperature. Let the…

Q: A student is using calorimetry to determine the heat of solution for various salts. When the student…

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Q: Sodium chloride, the table salt (NaCl) is added in cooking to enhance the flavor of the food.  When…

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Q: A 100.0 g sample of water at 90 oC is added to a 500.0 g sample of water at 10 oC. The final…

A: It is given that a 100 g sample of water initially at a temperature of 90°C is added to 500 g of…

Q: exothermic Is the reaction exothermic or endothermic? x10 endothermic up Does the temperature of the…

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Q: What is the specific heat of an object that goes from 25.2 Celsius to 31.4 Celsius Celsius when it…

A: Given: Amount of heat absorbed = 250 cal. Initial temperature = 25.2 oC Final temperature = 31.4 oC…

Q: 3. Is solid → liquid → gas an endothermic or exothermic process? Describe how this energy change…

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Q: Knowing that its specific heat capacity is 1 calorie/(g•°C), how much would the temperature of 16.0…

A: Solution :       Specific heat capacity is defined as the amount of heat required to raise the…

Q: Is heaven exothermic or endothermic? Is hell exothermic or endothermic?

A: Given We know about the  exothermic or endothermic

Q: Suppose you burn a 2.6 g sample of potato chips. You use the heat given off from that process to…

A: Given: The mass of the potato chips burned = 2.6 g The amount of water = 26.0 g The initial…

Q: Dissolution is an endothermic process when 100 mL of water dissolves 5 grams of a solid compound.…

A: Dissolution is a endothermic process when 5g solid is dissolved into 100 ml of water.  Direction of…

Q: The change in enthalpy (heat of solution) for ammonium nitrate dissolving in water is 25.7 kJ/mol.…

A: Given,  The change in enthalpy (heat of solution) for ammonium nitrate dissolving in water is 25.7…

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: Your lab partner asks you to make 100 mL of a 1.50 M HCl solution for an experiment she would like…

A: Please find the below attachment.

Q: 29. In a calorimetry experiment, 7.46 g of potassium chloride is dissolved into 100.0 g of water at…

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

Q: Is the reaction of magnesium metal with water exothermic or endothermic? How do you know?

A: A type of reaction in which heat is absorbed is known as endothermic reaction. While a type of…

Q: A 100.0 g sample of water at 90 oC is added to a 100.0 g sample of water at 10 oC. The final…

A: The final temperature after mixing is given by. Tf=mhchTh+mcccTcmhch+mccc where m is the mass, T is…

Q: Sodium sulfate and a blue solid known as copper(II) hydroxide, form when a solution of copper(II)…

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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: a coffee cup calorimetry, a 20.0 g of CaCl₂ is dissolved in 300 mL of water in a coffee cup…

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Q: 7. Using specific heat as your justification, why is the poolside concrete hotter than the pool…

A: Cement may be a solid, comparatively dark (compared to polished metal), and a comparatively…

Q: Determine the final temperature of a 32.3 mL salt solution initially at 21.05ºC when 1.93 kJ of heat…

A: Volume of solution(V) = 32.3 mL Density of solution(d) = 1.235 g/mL Mass = V × d   = 32.3 × 1.235 =…

Q: In a coffee cup calorimeter, the temperature 35.0 g of water drops from 20°C to 15.6°C when 9.0 g…

A: Given: Mass of water= 35.0 g Mass of KBr= 9.0 g The initial temperature of water= 20°C The final…

Q: Given: Mass of Gold (g) -51.1557 g Volume of H2O (mL) - 100mL Mass of H2O (g) - 99.8g Initial…

A: Given: Mass of gold = 51.1557 g mass of water = 99.8 g Initial temperature of gold = 200.0 oC…

Q: For this question, you are trying to determine which beaker will have more heat absorbed and why.…

A: Answer:- This question is answered by using the simple concept of calculation of heat absorbed by…

Q: In order to determine the identity of a metal, its specific heat is found.  When 28 g of the metal…

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Q: Which of the following suggests that the process of dissolving a solid sample in a constant-pressure…

A: Given: To explain how can we know that the dissolving of a solid sample in a constant-pressure…

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: An unknown metal has a mass of 61.3 g. When 672 J of heat Metal Specific heat (J/g C) are added to…

A: Given: Mass of metal = 61.3 g Heat added = 672 J Change in temperature = 24.4°C

Q: Salt A and salt B were dissolved separately in 100-milliliter beakers of water. The water…

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

Q: In a particular reaction, a coffee cup calorimeter absorbs 487 J of energy while the temperature…

A: Using the formula of specific heat capacity , and using heat capacity of water we have solved this…

Q: A sample of 0.750 g of peanut butter was burned in a calorimeter filled with 300.0 g of water. The…

A: NOTE: The increase in the temperature should be 14.6 oC and not 146 oC because the water will…

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: 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: Which of the following is true about the following system? CSNO3 (s) CSNO3 (aq) + heat > the volume…

A: The given reaction clearly indicates the reaction is exothermic that means heat is releases by the…

Q: A solution is made by mixing 287.0 mL287.0 mL of ethanol initially at 13.1 ∘C13.1⁢ ∘C with 287.0…

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Q: 2. A solution is formed by combining 10 mL of solution A and 40 mL of solution B. Find out the heat…

A: 2). given : 10 ml solution of A  40 ml solution of B

Q: A dilute solution of hydrochloric acid with a mass of 606.46 g and containing 0.37376 mol of HCl was…

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Q: Use the following information to answer Questions 6-9: A sample of NH4NO3 with a mass of 5.0 g is…

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Q: The addition of hydrochloric acid to a silver nitrate solution precipitates silver chloride…

A: A calorimeter is a device used to measure the heat of a reaction . A coffee-cup calorimeter works at…

Q: 50 g of solid sodium hydroxide is dissolved in 175 mL of water. Using a coffee-cup calorimeter, the…

A: According to guidelines i can answer only 1st question. Please repost the other questions…

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: heat change of the reaction Al2Cl6(s) + 6 Na(s) ⎯→ 2Al(s) + 6 NaCl(s) is –256.2 kcal.  The heat of…

A: Given, □Hrxn = -256.2 kcal □Hf(NaCl) = -98.3 kcal □Hf(Al) = Hf(Na) = 0 kcal ( in standard state…

Q: 2.568 g of a Strontium chloride was dissolved in 150.0 mL of water.  The initial temperature of the…

A: The heat of solution is given as:

Q: The addition of hydrochloric acid to a silver nitrate solution precipitates silver chloride…

A: Given: The volume of AgNO3 and HCl is 50.0 mL. The total volume is 100 mL. The concentration of…