How much lead shot needs to be heated to 389 degrees C when placed in 78.6 g water that started at 22.5 degrees C to reach a final temperature of 94.8 degrees C?

Q: Suppose that 240 mL of water changes in temperature from 57.62°C to 56.32°C. What is qwater in…

A: Dear student I have given answer to your question in the image format.

Q: On which temperature scale (F, C, or K) does 1 degree represent the smallest change in temperature?

A:

Q: The combustion of a peanut releases 6 kcal of heat. Convert this energy to J.

A: Thermodynamics is the branch of chemistry which deals with the study of heat and other forms of…

Q: If a 25.0 g sample of copper shot at 458 degrees C is placed into 125 g water at 19.6 degrees C,…

A: Given: Mass of copper= 25.0 g Mass of water= 125 g Initial temperature of copper= 458 C Initial…

Q: How many milliliters of water at 23 °C witha density of 1.00 g/mL must be mixed with 180 mL of…

A: Given information, Initial temperature of the water = 23oC Final temperature of the water = 45oC…

Q: Equal masses of the 3 substances were left to sit in the sun at the same time and for the same…

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Q: Convert 65°C to kelvins.

A: Degree Celsius and Kelvin are the unit of temperature. Degree Celsius is defined by the…

Q: A 3.00 kg sample of water is heated from 14 degrees celsius to 53 degrees celsius. How much energy…

A: Given,Mass of water = 3kgInitial temperature = 14 degrees CelsiusFinal temperature= 53 degrees…

Q: Which of the following represents an increase in kinetic energy? O A. Cooling steam from 165°C to…

A: When the temperature of an object increases, the average kinetic energy of its particles increases.…

Q: After heating up in a teapot, a cup of hot water is poured at a temperature of 209°F. The cup sits…

A: Given: Ta = the temperature surrounding the object = room temp.= 68oF To = initial temperature of…

Q: The specific heat capacity of liquid mercury is 0.14 J/g-k. How many joules of heat are needed to…

A: Given: The specific heat of Hg = 0.14 J/g-K or J/g-0C The initial temperature, (T1) =22.1 0C. The…

Q: An 85.0 g piece of copper is heated to 98.7 degrees C.The copper is then quickly put in to water…

A: Answer:- This question is answered by using the simple concept of calorimetry which states that heat…

Q: 9) How many joules are released when 450 grams of water are cooled from 4x 10"°C (the hottest…

A: Specific heat formula is The equation for the amount of energy in Joules (J), needed to change the…

Q: Which of the following units are used to measure heat? Select all that apply. Kelvin Celsius…

A: Heat is a type of energy and the heat of a system can be measured by measuring the temperature of…

Q: How is kinetic and potential energy differ?  How are they related?  Please cite an everyday…

A: When an object is at rest the body is said to possess potential energy. in another case when the…

Q: You burn a 0.6 g jellybean to warm 13 g of water, which increases the temperature of the water 2 °C.…

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Q: What are the 4 states of matter?

A: To identify: 4 states of matter.

Q: Explain the difference between heat and temperature. Does 1 L of water at 65°F have more, less, or…

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Q: A student's thermometer reads 102.2°C when placed in boiling water. The student then used the same…

A: a). Actual temperature of the solution:

Q: The combustion of 45.0 g of methane (natural gas) releases 2498 kJ of heat energy. How much energy…

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Q: What is the mass of a piece of iron that releases 134.60 joules of heat as it cools from 93.13…

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Q: Iculate the amount of heat needed to melt 123. g of solid acetic acid (HCH,CO,) and bring it to a…

A: Calculation as shown below

Q: Directions: Convert the following temperature scales. 1. 55 °C to K 2. 288 K to °C 3. 28 °C to OF 4.…

A: The different units of temperature are related to each other as; °F=95°C + 32…

Q: Calculate the amount of heat needed to melt 93.3 g of solid hexane (C,Hj4) and bring it to a…

A: Heat absorbed or released in a chemical reaction(Q) is related with specific heat(c) related as Q =…

Q: A sheet of gold metal that has a mass of 100.0g and has a temperature of 18.0 degrees C is placed…

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Q: 250 grams of water, initially -15 C, is added to coke (240 grams) at 35 C, if all the ice melts,…

A: The final temperature of the coke is

Q: A 150-lb person burns about 2700 Calories to run a marathon. How much energy is burned in kJ? Assume…

A: A conversion factor is multiplied to change from one unit to another.

Q: 62. List the energy conversions that occur in the process from the time water is about to enter a…

A: The law of conservation of energy states that energy can neither be created nor destroyed it can…

Q: 1. Two pans of water are on different burners of a stove. One pan of water is boiling vigorously,…

A: The amount of energy required to convert some amount of liquid water to gas or steam at constant…

Q: 5. Seawater can be made into drinking water by boiling the seawater, collecting the steam, and con…

A: Given that : Sea water can be made into drinking water by boiling the seawater, collecting the steam…

Q: Which change will lead to a larger change in the kinetic energy of an object,doubling its mass or…

A: Ek      =   ½mv2

Q: Convert 780. J to kJ

A: Given :  We have to convert 780 J to KJ.

Q: If you combine 440.0 mL of water at 25.00 degrees celsius and 130.0 mL of water at 95.00 degrees…

A: Upon mixing water samples of different temperatures, the mixture obtained has a temperature…

Q: How much energy is required to raise the temperature of 47.05 mL of water from 25.52°C to 27.89°C?…

A:

Q: DUIem 3.100 9of 12 When 10 g of gasoline burns, it releases 11 kcal of heat The density of gasoline…

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Q: What is the mass of a piece of iron that releases 396.40 joules of heat as it cools from 64.28…

A:

Q: Dr. Lussier enjoys a bath after a long day. After filling his tub with exactly 216.0 L of hot water,…

A:

Q: Calculate the amount of heat needed to boil 15.5 g of hexane (C,H4), beginning from a temperature of…

A:

Q: A student's thermometer reads 105.2°C when placed in boiling water. The student then used the same…

A: The boiling point of water is 100oC under normal conditions. But the thermometer reading is 105.2oC.…

Q: Calculate the amount of heat needed to boil 11.8 g of hexane (CH4), beginning from a temperature of…

A: We have to calculate the amount of heat needed to boil 11.8 gm of hexane beginning from a…

Q: When a 43.0 g piece of aluminum was placed in 250. g water at 20.4 degrees C, the temperature raised…

A: Given data: Mass of the aluminium, M = 43.0 g Specific heat of the steel, Caluminum = 0.900 J/g/oC…

Q: Convert 51.7 calories to Joules. Answer in units of J.

A: One calorie is equal to 4.184 joules, 1 cal = 4.18 joules

Q: A 45-kg sample of water absorbs 345 kJ of heat.  If the water was initially at 22.1 degrees celsius,…

A: Change in temperature is determined using the given formula,Specific heat of water is 4.184 kJ/kg.oC

Q: If 2400 J of heat melts a piece of solid mercury, what is the mass of the mercury

A: The heat required to melt a substance is calculated as: Q =m.Lf where Q is the heat required to melt…

Q: How many joules of heat are required to change 563 grams of solid ice with a temperature of 260…

A:

Q: How many kilocalories are lost when 580g of water cools from 67 degrees celsius to 22 degrees…

A: Given : Mass of water = 580 g Initial temperature of water = 67 oC And final temperature of water =…

Q: a. 7.5 x 10' J to kilojoules b. 3.9 X 10 mg to decigrams c. 2.21 × 104 dL to microliters

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

Q: How many joules are required to boil 200 grams of water?

A: Given,  The heat energy required to boil of 200g of water is:

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.