of water at room temperature. A solution is prepared by dissolving 42 g in 100 mL of water at 80 ∘∘C. The solution is then cooled slowly to room temperature without any solid precipitating. The solution is  Group of answer choices unsaturated at room temp. supersaturated at room temp. supersaturated at 80 ∘∘C

Q: If the specific heat of a solution is 4.18 J/goC, and you have 161 mL (1.03 g/mL) which increases in…

A: Mass of solution in grams is determined as follows,

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: 2. Write down the chemical reaction for the heating of the hydrated form of copper II sulfate. The…

A: Mass of hydrated copper sulphate = 4.1g  Mass of anhydrated copper sulphate = 2.6g  Mass of water =…

Q: The salt magnesium chloride is soluble in water. When 0.530 g of MgCl, is dissolved in 106.00 g of…

A:

Q: Joules Using the data below, calculate the heat of dissolution, AHsoln, in units of Assume the…

A: In the given question we have to calculate the Heat of dissolution (∆Hsoln)  first of all, we have…

Q: Imagine that a hypothetical life form is discovered on our moon and transported to Earth. On a hot…

A:

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

A:

Q: Two types of pure substances are O compounds and homogeneous solutions. elements and homogeneous…

A: Mixture can be homogeneous or heterogeneous.

Q: The amount of heat absorbed by the solution can be found using the equation q = m x SH x AT. It can…

A: A multiple choice question based on heat absorbed, which is to be accomplished.

Q: A student dissolves 11.5 g of sodium chloride (NaCl)in 200. g of water in a well-insulated open cup.…

A: The reactions in which there is heat produced during the reaction are called exothermic reactions.…

Q: 1. Br2 (1 equiv) ethanol (solvent) 2. NaOH, heat

A:

Q: A solution is made by mixing 212.0 mL of ethanol initially at 10.0 C with 212.0 mL of water…

A:

Q: A hot cup of tea placed near an open window to cool. Which of the following statements best…

A: Given: Hot cup of tea placed near an open window to cool.

Q: 100.g of Cu at 100 degrees C is added to 150.g of H2O at 10 degrees C. If the specific heat of…

A: From the question,Mass of Cu =100 g.The temperature of Cu = 100˚C.Mass of  H2O = 150 g.The…

Q: Two aqueous NaCl solutions of equal volume and concentration were kept in flasks and held at…

A:

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: student is asked to determine the heat of solution in J/g for the compound ammonium nitrate…

A:

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: A solid is dissolved in a coffee cup calorimeter. Which of the observations suggest that the process…

A: The given process is endothermic as solid is dissolved in a coffee cup calorimeter.

Q: Imagine that a hypothetical life form is discovered on our moon and transported to Earth. On a hot…

A: The heat of vaporization of hypothetical extraterrestrial life = 259 cal/g. The heat of vaporization…

Q: 1. 1 N NAOH .N. 2. aq. HCl (workup) H3C `CO2Et

A:

Q: An organic chemist measures the temperature T of a solution in a reaction flask. Here is the result.…

A:

Q: A student dissolves 13.8 g of lithium chloride (LİCI)in 200. g of water in a well-insulated open…

A: Given the mass of LiCl taken = 13.8 g mass of solvent water taken, m = 200 g temperature rise, ∆T =…

Q: A solution is made by mixing 197.3 g of ethanol initially at 10.5°C with 250.0 g of water initially…

A: We know that, according to the law of conservation of heat energy, energy gained or loss by the…

Q: 4) Calcium chloride (CaCl2) emits heat when dissolved in water. CaCl2e) → Ca- 2+ (aq) + 2Cl (aq) ΔΗ.…

A: First of all you need to find the amount of heat required to raise the temperature of water. For…

Q: Use the information provided to determine ΔH°rxn for the following reaction:   ΔH°f (kJ/mol)…

A: According to Hess´s law for the reaction:

Q: Solve this

A: Introduction: Specific heat: The quantity of heat required by a 1 mole of a substance to raise the…

Q: A list of the calorie content of foods indicates that an enchilada contains 230. Calories. Express…

A: A list of the calorie content of foods indicates that an enchilada contains 230. Calories. We have…

Q: Calculate the amount of heat required to raise the temperature of 950.0 mL of a solution from 22.5…

A:

Q: When 0.800 grams of NaOH is dissolved in 100.0 grams of water, the temperature of the solution…

A: Given that,mass of NaOH ,ms= 0.8 gmass of water, mw = 100 gInitial temperature = T1 = 25oCFinal…

Q: A hot cup of tea placed near an open window to cool. Which of the following statements best…

A: The given statement is : A hot cup of tea placed near an open window to cool.

Q: . A 25.00 gram sample of barium chloride was dissolved in 75.00 grams of water. If the calorimeter…

A: The question is based on the concept of chemical thermodynamics. we have to calculate heat produced…

Q: +3 CO(g) 2 Fe(s) + 3 CO2(g) 3 02(g) → 2 Fe203(s) AH = -1648 kJ → 2 CO(g) + 02(g) AH= +565.4 kJ

A: (1) 4Fe + 3O2----> 2Fe2O3, □H = -1648 kJ (2) 2CO2 ----> 2CO + O2, □H = +565.4 kJ (3) Fe2O3 +…

Q: Which of the following accurately describes the conditions of an isolated system? a. Both energy and…

A: Isolated system, as the name suggests, is something where no matter and no energy can be…

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: M9SO4 Mass of salt, g 15.0 Molar mass of salt, g/ 120.366 mol Moles of salt, mol 1.25x10^-1 Volume…

A: The data given is,

Q: How much heat, in joules (J), must be added to a 75.0-g iron block with a specific heat of 0.449 J/g…

A: Given: Mass of iron block =75.0 g Specific heat of iron =0.449 J/g oC Initial temperature(T1) =25 oC…

Q: HNO, 1. HCI, Fe NANO, 1. HBF. 2. NaOH H,SO, 2. heat .F

A: When benzene is treated with Mixture of concentrated nitric acid and Sulfuric acid, then nitro…

Q: )Which of the following cannot leave or enter a closed system: heat, work, or matter? Which cannot…

A: The system consists of those molecules which are reacting.The surroundings are everything else; the…

Q: A volume of 0.25 L is acquired when you combine 0.2 g of Mg metal with HCl. Assuming the solution…

A: Given, Volume of HCl solution = 0.25 L Mass of Mg metal = 0.2 g Temperature changes from 24.1 degree…

Q: A student dissolves 12.0 g of lithium chloride (LiCI)in 300. g of water in a well-insulated open…

A: The balanced equation is   LiCl (aq)  ------> Li+ (aq) +  Cl– (aq) Number of moles of LiCl =…

Q: 1. Which of the following accurately describes the conditions of a closed system? a. Both energy and…

A: Please note: According to the guideline, in one session only three parts of a question can be…

Q: What is the proper set up to find how much heat in kJ is released when 147 grams of NO2 (g) is…

A: In a chemical reaction bond making and bond breaking takes place and while during the formation of…

Q: A student dissolves 14.6 g of lithium chloride (LiCI)in 250. g of water in a well-insulated open…

A: Given : Mass = m1 = 14.6 g Mass  = m2 = 250 g T1 = 21.0°c T2 = 33.5 °c Time = 6.3 min   Finds : To…

Q: A student dissolves 13.2 g of lithium chloride (LICI) in 200. g of water in a well-insulated open…

A: Introduction In a particular reaction, the evolution (release) of heat indicates that the reaction…

Q: Question 3

A: Given,Mass of barium chloride = 25gMass of water = 75gCalorimeter constant = 120J/degree Celsius.

Q: 2. In the determination of water of crystallization for the hydrated salt BaCl2.2H20, the following…

A: Here we are required to find the experimental percent of water

Q: If 5.0125 g of calcium chloride (CaCl2) is dissolved in 100.0 mL of water, the following data are…

A: