How many grams of methanol must be combusted to raise the temperature of 377 g of water from 23.5°C to 44.16°C? Assume that the transfer of heat from the methanol flame to the water is 100% efficient. g

Q: 5. A 60.0 g sample of H20 at 275 K is mixed with a 20.0 g sample of H2O at 320 K. Calculate the…

A: Since there is no heat lost in the surroundings. Hence we can say the lost by warm water is being…

Q: Ametal radiator is made from 25.0 kg of iron. The specific heat of iron is 0.449 Jg °C. How much…

A: Given  mass = 25kg  c = 0.449J/gC  Temp change = 15°C to 63°C  We have to find heat

Q: Potassium nitrate, KNO3, has a molar mass of 101.1 g/mol. In a constant-pressure calorimeter, 23.4 g…

A:

Q: Consider the dissolution of CaCl₂: CaCl₂(s) → Ca²⁺(aq) + 2Cl⁻(aq) ∆H = -81.5 kJ/mol A 15.0-g sample…

A: Given reaction is: CaCl₂(s) → Ca²⁺(aq) + 2Cl⁻(aq)      :∆H = -81.5 kJ/mol Mass of CaCl2 = 15.0 g…

Q: When 59.52 grams of fictional compound X is added to water to make 553.5 grams of solution, the…

A: given mass of solution = 553.5 g mass of X = 59.52 g molar mass of X = 69.14 g/mol initial…

Q: A 5.000 g sample of methanol, CH3OH, was combusted in the presence of excess oxygen in a bomb…

A: Step : 1             calculate the heat produced by the combustion of methanol.

Q: hen 92.00 grams of fictional compound X is added to water to make 531.0 grams of solution, the…

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Q: A 30 g ice cube at 0 °C is put in an equal mass of 98 °C water in an insulated container, and…

A:

Q: A 87.3 g chunk of concrete (specific heat: 0.85 J/g°C) is heated to 371.2 °C and dropped into a…

A: Using the heat capacity formula we can find final temperature , q = m x Cs x (Tf-Ti)  m = mass  Cs=…

Q: A chemist dissolves 2.452 g of urea in 43.627 g of water. The temperature goes from 21.52 degrees…

A: Given that -  Mass of urea = 2.452 g  Mass of water = 43.627 g  Temperature change = 21.52 °C…

Q: A generic solid, X, has a molar mass of 84.1 g/mol.84.1 g/mol. In a constant‑pressure calorimeter,…

A: Given: The mass of solid and water is 22.3 g and 213 g, respectively. The initial and final…

Q: When an alloy containing 20 g aluminum (c = 0.900 J g⁻¹ K) and 29 g copper (c = 0.385 J g⁻¹ K⁻¹) at…

A: Given that;   Mass of aluminum MAl  = 20g Heat capacity cAl  = 0.900 J/g°C  (unit correction)  Mass…

Q: The balanced combustion reaction for C,H, is 20,H,1) + 150,(g) → 12CO, (g) + 6 H,0(1) + 6542 kJ f…

A: Mass of C6H6  = 5.700 g    No.of moles =  mass / molar mass   Molar mass of C6H6=6 × MM of C + 6×MM…

Q: A 5.000 g sample of methanol, CH3OH, was combusted in the presence of excess oxygen in a bomb…

A: Since you have posted  multiple questions in a single session, we are entitiled to answer only first…

Q: Potassium nitrate, KNO,, has a molar mass of 101.1 g/mol. In a constant-pressure calorimeter, 20.9 g…

A: Given data : Molar mass of KNO3 (MK)= 101.1 g/mol Mass of KNO3 (mK) = 20.9 g Mass of water (mw) =…

Q: When 24.89 grams of fictional compound X is added to water to make 314.9 grams of solution, the…

A: Given: Mass of compound added = 24.89 g. Molar mass of compound = 123.72 g/mol. Initial temperature…

Q: Potassium nitrate, KNO,, has a molar mass of 101.1 g/mol. In a constant-pressure calorimeter, 34.4 g…

A: Given that: Mass of KNO3 = 34.4 g, mass of water = 217 g, initial temperature of water, Ti = 23.00⁰C…

Q: A 225-g sample of aluminum was heated to 125.5 oC, then placed into 500.0 g water at 22.5 oC. (The…

A: Here we have:           mass of aluminiun, mAl = 225 g             mass of water , mH2O = 500.0 g…

Q: A piece of metal weighing 71.35 g was heated to 96.6oC and then put into 42.95 g of water (initially…

A: The heat released or absorbed (q) when the temperature of any substance is raised is calculated as:…

Q: The human body "burns" glucose (CgH120 for energy. Burning 1.00 g of glucose produces 15.7 kJ of…

A:

Q: Determine the final temperature of a system when 100.g of water at 82.7 C is mixed with 35.0g of…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: When 51.96 grams of fictional compound X is added to water to make 348.0 grams of solution, the…

A: Mass of compound X is = 51.96 g Molar mass of compound X is = 92.68 g/mol Specific heat of solution…

Q: A piece of metal weighing 59.047 g was heated to 100.0 °C and then put it into 100.0 mL of water…

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Q: 4. How much heat is required to raise the temperature of 854 g of H2O from 23.5 oC to 85.0 oC?

A: As per student demand solution for question 4 follow as:  Given that: Mass of Water(m) = 854g…

Q: Ten pounds of CO2 at room temperature (80 °F) are stored in a fire extinguisher that has a volume of…

A:

Q: 50.0 mL of hot water (49.6 oC) is added to 50.0 mL of cold water (24.7 oC).  Upon mixing the water…

A: Mass of hot water = 50 mL =50g Temperature of hot water = 49.5°C Mass of cold water = 50 mL = 50 g…

Q: A piece of metal weighing 5.10 g at temperature of 48.6oC was placed in calorimeter in 20.00 mL of…

A:

Q: Consider the dissolution of CaCl₂: CaCl₂(s) → Ca²⁺(aq) + 2Cl⁻(aq) ∆H = -81.5 kJ/mol A 15.0-g sample…

A: The reaction given in the question-                                               CaCl₂(s) →…

Q: When 59.59 grams of fictional compound X is added to water to make 330.6 grams of solution, the…

A: Given that, the mass of the fictional compound added = 59.59 grams. And the mass of the water =…

Q: A piece of iron (mass = 25.0 g) at 368 K is placed in a styrofoam coffee cup containing 25.0 ml of…

A:

Q: When 1 mol of CS2(l) forms from its elements at 1 atm and 25 ° C,  89.7 kJ  is absorbed, and it…

A: Hess law of constant heat summation: This law states that regardless of the multiple stages or steps…

Q: When 56.47 grams of fictional compound X is added to water to make 404.5 grams of solution, the…

A: Given 56.47 grams of fictional compound X 404.5 grams of solution T1=20.05°C T2=72.12°C specific…

Q: A piece of metal with a mass of 59.047 g was heated to 98.0°C and then put into 100.0g of water…

A: Given: Mass of the metal = 59.047 g The initial temperature of the metal = 98.0 oC The mass of water…

Q: You want to quickly set up a temporary water bath in your lab with a volume of 10.0L and a…

A: Q = mc∆T Temperature of hot water = 55.20C Temperature of cold water = 220C Final temperature =…

Q: CaCl₂(s) → Ca²⁺(aq) + 2Cl⁻(aq) ∆H = -81.5 kJ/mol A 15.0-g sample of CaCl₂ is dissolved in 265.0 g…

A: Energy released by dissolution of CaCl2 will leads to increase in temperature of water.

Q: If a reaction causes 25.0 g of water to decrease temperature by 14.24 oC at constant pressure, what…

A:

Q: Calculate the amount of coke, (carbon) needed to be burned in order to heat 500.kg of water from 20…

A: The amount of energy for a particular amount of matter present at specific temperature with specific…

Q: You want to quickly set up a temporary water bath in your lab with a volume of 10.0L and a…

A: Total volume = 10 L = 10000 mL Initial temperature for hot water = 50.5°C Initial temperature for…

Q: A gold coin whose mass is 8.47 g is heated to 138.9oC and then quickly dropped into an ice…

A: Given: The mass of a gold coin is 8.47 g. The initial temperature of the coin is 138.9°C. The molar…

Q: If a 50.0 g piece of brass rod at 98.0°C is placed in 150.0 g of water at 25.0°C, what is the final…

A: Given, For brass, Mass of brass (mbrass) = 50.0 g Specific heat capacity of brass (Cpbrass) = 0.38…

Q: A 30.0 g sample of water at 280 K is mixed with 50.0 g water at 330 K. Calculate the final…

A: The final temperature of mixing is given by, Tf=nATA+nBTBnA+nB

Q: When 30.87 grams of fictional compound X is added to water to make 438.9 grams of solution, the…

A: Given : Mass of compound X = 30.87 g Molar mass = 130.58g.mol-1 Heat capacity = 4.18J/g°C. Initial…

Q: How many grams of methanol must be combusted to raise the temperature of 407 g of water from 13.5°C…

A: You have amount of water, m = 407 g Initial temp = 13.5 oC Final temp = 49.98 oC dT = 49.98 - 13.5 =…

Q: When 40.00 grams of fictional compound X is added to water to make 236.0 grams of solution, the…

A: Mass of compound = 40.00 g Molar mass = 73.87 g/mol Moles = Mass ÷  Molar mass Moles=40 g ÷ 73.87…

Q: Two students perform an experiment to determine the molar enthalpy of sucrose (C HO, molar mass =…

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Q: Suppose 2.32 kJ of heat is added to 25.4 g of ethanol at 18.71 °C. The specific heat capacity of…

A:

Q: 30.0 g of a substance (molar mass: 46 g/mol) required 262 J of heat to raise its temperature from…

A:

Q: When 53.14 grams of fictional compound X is added to water to make 522.1 grams of solution, the…

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Q: 1.15 g of LiCl (42.39 g/mol) is dissolved in 25.0 g H2O in a constant-pressure calorimeter and the…

A: Given that 1.15 g LiCl was dissolved in 25.0 g water. Number of moles can be calculated from the…

Micelles and Biological Membrane

Micelles are the type of lipid molecules that organize themselves in spherical shape in aqueous solutions. The production of the micelle is a reply to the amphipathic behavior of fatty acids. It means that they consist of both hydrophobic regions and hydrophilic regions. In micelles, polar head groups (hydrophilic groups) produce an outer layer associated with water whereas nonpolar tails (hydrophobic groups) are organized in the interior.