Sodium acetate dissolves readily in water according to the following equation. NaC2H3O2 (s) –→ NaC2H3O2 (aq) AH = -17.3 kJ Classify this process as either exothermic or endothermic and explain how you determined it. в I 0 / 10000 Word Limit 4 5 7 8 9 10 11 12 13 Nex

Q: What is the independent and dependent variable? Does the mass of a bouncy ball affect how much…

A: Dependent variable: A variable which depends on the other variable say, independent variable. It is…

Q: Which has more kinetic energy: a 0.0018-kg bullet traveling at 403 m/s or a 5.3  107-kg ocean liner…

A: As we know kinetic energy involved the motion. Therefore the formula we are going to use to…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 886.0 g sample…

A: The heat (q) absorbed or evolved can be calculated by the mass (m) of the compound, temperature…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 153.0 mg sample…

A: Given data,  Mass of the sample of a pure substance= 153.0 mg = 153.01000gm= 0.153 g Temperature…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 480.0 mg sample…

A: Given: Mass of mercury=480.0 mg=0.4800 g Temperature change, ∆T=(48.8+273)-(35.2+273)=13.6 K Heat…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 267.0 g sample…

A: Mass of substance = m = 267.0 g Change in Temperature( ΔT)  = 7.3 - (-5.2) = 12.5 °C = 285.5 K Heat…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 333.0 g sample…

A:

Q: Identify each of the changes as either path dependent or path independent. Path dependent Path…

A: The heat and work changes are path dependent. Volume and internal energy changes are path…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 221.0g sample…

A: Specific heat capacity: The amount of heat required to increase the temperature of one gram of a…

Q: Question is attached

A: Specific heat, ratio of the quantity of heat required to raise the temperature of a body one degree…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 1.91kg sample…

A: Given: mass of substance = 1.91 kg = 1910 g Temperature change = 0.6°C to 15.5°C Heat needed = 3.96…

Q: How many times more kinetic energy does the dump truck have than the car?

A: Given: Mass of sub compact car =1.6×103 Kg Mass of dump truck =1.70×104 Kg Speed of both truck and…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 1.87 kg sample…

A:

Q: How much heat is given off to the surroundings when 7 g of aluminum reacts according to the…

A: The enthalpy of the reaction is considered as the state function that is it depends only on the…

Q: 125 mL of H20 is initially at room temperature (22.0°C). A chilled steel rod at 2.0°C is placed in…

A:

Q: Q3) Consider the following thermochemical equation: 2NO + OzR) 2 ΝΟω AH = -114.1 kJ If 3.00 x 102 g…

A: Nitrogen monoxide reacts with oxygen to form nitrogen dioxide. The thermochemical equation for this…

Q: 125 mLmL of H2OH2O is initially at room temperature (22.0∘C∘C). A chilled steel rod at 2.0∘C∘C is…

A:

Q: Sodium acetate dissolves readily in water according to the following equation. NaC2H3O2 (s) →…

A: Given that, sodium acetate dissolves in water according to the following chemical equation as…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 1.68 kg sample…

A: The mass of the substance is = 1.68 kg The increase in the temperature of the substance is =…

Q: Calculate the energy required to heat 778.0 g of iron from -4.0 °C to 8.2 °C. Assume the specific…

A:

Q: A sample of gas is cooled, releasing 94 J of energy. The change in internal energy for the gas is…

A: According to the first law of thermodynamics, the energy of the universe remains constant. For a…

Q: A 1489 kg1489 kg car is traveling down the road at 100.2 km/h.100.2 km/h. While traveling at this…

A: Mass = m= 1489kg. Velocity v = 100.2km/h = 100.2×5/18 = 27.7m/s (1km/h =5/18 m/s).

Q: Using A chemical reaction takes place inside a flask submerged in a water bath. The water bath…

A: The formula used is :-  Q = mc∆T  Q = heat released  m = mass of water  c = specific heat capacity…

Q: mixture of xenon and hydrogen gas is expanded from a volume of 16.0 L to a volume of 35.0 L, while…

A:

Q: Which one of the following is an endothermic process? A) ice melting B) Hydrochloric acid and barium…

A: Ans - C both ice melting and boiling soap  In a reaction if heat release it is exothermic process or…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 126.0 g sample…

A: Specific heat capacity is the amount of heat required to raise the temperature of a substance by 1…

Q: A metal radiator is made from 13.96 kg of iron. The specific heat of iron is 0.449 J/g °C. How much…

A: Given;

Q: predict the final temperature of an object (in celsius) if the object is 236.36 g, has a specific…

A: q= cm∆T q= heat lost  m is mass of substance ∆T is change in temperature.

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 623.0g sample…

A: • The values provided in the question are:-  i) Mass of a sample of a pure substance, m = 623.0 g…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 697.0 mg sample…

A: We will calculate specific heat. Mass= 697mg=0.697g

Q: What is the specific heat capacity of iron (in J/(g°C)), if 51.5 J is required to raise the…

A: We will calculate specific heat

Q: Which one of the following is an endothermic process? A Hydrochloric acid and barium hydroxide are…

A: The energy difference of the products and reactants is known as the energy change of a reaction.

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 161.0 g sample…

A: A chemist carefully measures the amount of heat needed to raise the temperature of a 161.0 g sample…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a  338.0mg…

A: The mass of the pure substance in kilogram can be written as 338.0 × 10-6 kg. The specific heat…

Q: If a system has 225 kcal225 kcal of work done to it, and releases 5.00×102 kJ5.00×102 kJ of heat…

A: The internal energy change is expressed as follows, From given information it is clear that work is…

Q: The heat involved in a temperature change can be calculated using the following equation. Q (heat)…

A: Given : Initial temperature of water = 20 oC Final temperature of water = 24 oC Mass of water = 50.0…

Q: What is the Kinetic energy of a 2000-Ib car traveling at 59 miles per hour? (Ib =0.4536 kg, 1 mi=…

A: The Kinetic energy of a 2000-lb car traveling at 59 miles per hour is calculated as,1lb =0.4536…

Q: A metal radiator is made from 25.07 kg of iron. The specific heat of iron is 0.449 J/g °C. How much…

A: The mass of iron metal is = 25.07 kg The heat capacity of iron metal is = 0.449 J/goC Increase in…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 823.0g sample…

A: Given;

Q: 900 J of heat are added to a system and 200 J of work are done on the system. What is ∆E?

A: For this problem We have to find the change in internal energy for the given condition.

Q: O THERMOCHEMISTRY Calculating specific heat capacity A chemist carefully measures the amount of heat…

A: Calculation as shown below

Q: Predict the total quantity of heat that would be required if you wanted to prepare a cup of instant…

A: Volume of cold water is 200 ml and density is 1.0 g/mL.Specific heat of water is 4.18 J.g.-1.°C-1…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 1.75 kg sample…

A: Given: Mass of sample = 1.75 kg Initial temperature = 22.2oC Final temperature = 45.4oC Heat…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 339.0 g sample…

A:

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 839.0 g sample…

A: The mass of the substance is = 839.0 g The raise in the temperature of the substance is = 8.9oC -…

Q: In the laboratory a student determines the specific heat of a metal. He heats 18.4 grams of…

A:

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 191.0 g sample…

A: Thermochemistry is branch of chemistry in which we deal with amount of heat evolved or absorbed by…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 0.46 kg sample…

A: Specific heat--->> The specific heat capacity of a substance is the amount of energy required…

Q: Propane (C3H8) is often used to heat homes. The combustion of propane follows the following…

A: Answer: 172.64 grams

Q: The kinetic energy of a 2000.0 g bowling ball traveling at 8.0 m/s is A) 1.20 x 103 B) 64 C) 11.9 D)…

A: