Question When 20 grams of a salt is dissolved in 95 grams of water, the temperature of the solution decreases from 40°C to 30°C. How much heat is evolved? The specific heat of the solution is 1.1 cal/g°C. 5060 cal 880 cal O 40°C -5060 cal

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: What is the final temperature of 600.1 g of water (specific heat = 4.18 J/g.°C) at 24.2°C that…

A: • Specific Heat Capacity = qm ∆T J/g.     q → heat.    m → mass of substance. ∆T → Tf-Ti →…

Q: What is the final temperature (in °C) of 470.1 g of water (specific heat = 4.184 J/g･°C) at 24.20°C…

A:

Q: Explain why the curve has two segments in which heat is added to the water but the temperature does…

A:

Q: A calorimeter is pictured below. When substances are dissolved in water, they can absorb or release…

A:

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

A:

Q: Assuming that Coca-Cola has the same specific heat as water [4.18 J/(g⋅∘C)J/(g⋅∘C)], calculate the…

A: given, specific heat (c) = 4.18 J/(gm.°C) mass of the substance(m) = 350 gm initial temperature=…

Q: how many grams of water  would require 2.20 x 104 calories of heat to raise its temperature from…

A: Using formula for specific heat we have solved this problem.

Q: 5) The specific heat of water is: A. 5 Cal per g per C B. 2 Cal per g per C C. 3 Cal per g per C D.…

A: Introduction: The heat capacity of a matter is the quantity of heat required to increase the…

Q: How many calories of heat must be required to raise 990 grams of water at 18 °C to 97 °C?

A: Given: Mass of water, m=990 g Initial temperature, Ti=18°C Final temperature, Tf=97°C

Q: How many kilojoules are released when 8.2g of water condenses at 100 C and cools to 15 C?

A:

Q: Using the molar heat of solution provided in the question above: determine how many g solid sodium…

A: The molar heat of the solution of sodium hydroxide is = -445.1 kJ/mol The volume of the water is =…

Q: What is the final temperature (in °C) of 150.1 g of water (specific heat = 4.18 J/g･°C) at 24.2°C…

A: Interpretation: The final temperature of 150.1 g of water at 24.2°C that absorbed 950.0 J of heat is…

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: What would be the final temperature if 500 J of heat were transferred into 20. 0 g of Methanol…

A:

Q: What is the final temperature (in °C) of 100.1 g of water (specific heat = 4.18 J/g･°C) at 24.2°C…

A: Heat is the form for energy and is defined in joule.   Heat flow from high temperature to low…

Q: when 20 grams of salt is dissolved in 95 grams of water the temperature of the solution decreases…

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

A:

Q: How much heat, in joules and in calories, must be removed from 1.75 mol of water to lower its…

A: The heat removed from any substance is a function of quantity of substance used and the gap in…

Q: how many calories are required to heat 93.6 g of menthol from -35C to 55C specific heat of…

A:

Q: Question 7 A 25.00 gram sample of an unknown metal initially at 99.0 degrees Celcius is added to…

A:

Q: 1. The high specific heat of water is responsible for the following, except: A. helps moderate…

A: A multiple choice question based on intermolecular forces that is to be accomplished.

Q: Questions: 1. A coffee cup calorimeter having a heat capacity of 451 J/'C was used to measure the…

A: Since you have asked multiple question, we will solve the first question for you.If you want any…

Q: How much heat, in joules and in calories, must be removed from 2.13 mol of water to lower its…

A: Given information is as follows: The number of moles of water = 2.13 mol The initial temperature…

Q: A 115.4 g sample of water absorbs 97.48 kJ of heat. If its initial temperature is 7°C, what will the…

A:

Q: What is the final temperature (in °C) of 850.1 g of water (specific heat = 4.184 J/g･°C) at 24.20°C…

A:

Q: Question 16 A 2.30 g sample of NaOH (s) is mixed with 18.0 g water at 13.5° C in a coffee-cup…

A: Mass of NaOH taken = 2.30 g Molar mass of NaOH = 40 g/mol Mass of water taken = 18.0 g Total mass of…

Q: An ice cube with a temperature of -6.5\circ∘C is added to a glass of tea with an initial temperature…

A: Whenever two bodies at different temperature are places in contact with each-other,heat flows from…

Q: Question 3 What mass of water will change its temperature by 3°C when 525 J of heat is added to it?…

A:

Q: How much heat is absorbed by liquid water that weighs 270 grams as it is heated from 35˚C to 105˚C?…

A: Water absorbs Heat energy to elevate temperature from an initial value to a final value. This…

Q: How much heat, in joules and in calories, must be removed from 1.75 mol of water to lower its…

A: Formula used: Q=mcΔT  C = 1.00cal/g∘C  or  4.186J/g∘C moles of water to grams…

Q: When heated, the temperature of a water sample increased from 15°C to 39°C. It absorbed 4300 joules…

A:

Q: < Question 2 of 5 Calculate the energy change (with the correct sign) when the temperature of 100.0…

A: Temperature of 100.0 mL liquid water increased by 3.30◦C . We have to calculate the energy change of…

Q: What type of phase change is water in the liquid state turning into water in the solid state?…

A:

Q: 4. How many kilojoules are required at 0°C to melt an ice cube with a mass of 25 g? 5. How many…

A: 4.) We would use heat of fusion of ice to calculate heat .  5.) First we would Calculate heat…

Q: When 20 calories of heat is added to 2.0 grams of water at 15 degrees Celsius the temperature of…

A:

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: What is the final temperature (in °C) of 230.1 g of water (specific heat = 4.184 J/g°C) at 24.20°C…

A:

Q: QUESTION 10 When 79.63 grams of fictional compound X is added to water to make 291.6 grams of…

A: We can solve the problem in 2 steps. At first we need to calculate the heat absorbed or released…

Q: Question 1 Given the reaction below and its standard enthalpy change, if 0.639 moles of CaCl2 is…

A: Given that, 0.639 mol of CaCl2 into water. The total volume is 464 mL. The initial temperature is T1…

Q: Assume that 1 gram of liquid water is at a temperature of 20°C. How many calories (or joules) of…

A: The amount of heat required to increase the temperature of one kilogram of a substance by one degree…

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: What is the ∆ T for 40.0 grams of water that absorbs 1400 scientific calories at room temperature?…

A: Given:- q = 1400 calories m = 40.0 grams c = 1 calorie/g°C

Q: If 14.5 kJ of heat were added to 485 g of liquid water, how much would its temperature increase?…

A: Given: Specific heat of water = 4.18 J/g⋅∘C. Mass of water = 485 g. Heat energy = 14.5 KJ

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: 11. The heat of solution ( Δ Hsoln) is the algebraic sum of the heat of mixing (Δ Hmix), the heat of…

A:

Q: When substances are dissolved in water, they can absorb or release heat. Describe how you would use…

A: A calorimetry is a technique/apparatus used in laboratories which helps us in determining whether…

Q: The heat of dissolution of a solid substance was determined using an insulated calorimeter…

A: Given: Weight of water = 150 g Initial temperature = 27.4°C Final temperature = 32.8°C Specific heat…

Introduction to chemistry

Chemistry is a branch of science that deals with the analysis of material and the substances that comprise it. It also manages the properties of these substances and their reactions to form new substances. It is basically centered on particles and atoms that make up components and mixtures. These chemical species will in general connect using bonds.