Initial mass of food sample (g) 1.93 Final mass of food sample (g) 0.4: Initial temperature of water (°C) 22.00 Final temperature of water (°C) 23.97 113.65 g Mass of water (g) Temperature change of water (°C). Do not include a negative sign. 1.97 °C

Q: A coffee-cup calorimeter contains 70 mL of water with an initial temperature of 24.9°C. An unknown…

A: Given that, For water, Volume of water = 70 ml Density of water = 1 g ml-1 Mass of water = 70ml × 1…

Q: Data Mass of water: 100.4701g Initial mass of food: 8.7910h Initial temperature of water: 23 degree…

A:

Q: How do I calculate the final temperature of a mixture? Mass of empty cup and lid: 9.94 g  Mass of…

A:

Q: A 131.9 g piece of copper (specific heat 0.380 J/g･°C) is heated and then placed into 400.0 g of…

A: Mass of Cu = 131.9 g = MCuSpecific heat of Cu = CCu = 0.38 J/g°CIntial temperature of Cu = TcMass of…

Q: A 130.3 g piece of copper (specific heat 0.38 Jig °C) is heated and then placed into 400.0 g of…

A: The heat released by the piece of copper is equal to the heat absorbed by the water. The initial…

Q: A 89.5 g piece of copper (specific heat 0.380 J/g･°C) is heated and then placed into 400.0 g of…

A:

Q: An unknown mass of each substance, initially at 22.0C, absorbs 1980 J of heat. The final temperature…

A: Interpretation-  To determine the mass of each substance when initially given temperature  22.0C,…

Q: A 101.9 g piece of copper (specific heat 0.380 J/g･°C) is heated and then placed into 400.0 g of…

A: Given Mass of cu = 101.9 g Mass of water = 400 g Initial temperature of water = 20.7 oC Final…

Q: A block of copper is heated to 357 °C and then is dropped into a coffee cup calorimeter containing…

A:

Q: A 87.9 g piece of copper (specific heat 0.380 J/g･°C) is heated and then placed into 400.0 g of…

A: Please find the solution in image attached below.

Q: Computation of Calories per Mass of Food Mass of can (g) 12.63 Mass of can and water (g) 111.47…

A: The data given is,

Q: food sample   Peanut Marshmallow Mass of Water  50g  50g Initial Mass of Food Sample and…

A:

Q: A 120.7 g piece of copper (specific heat 0.38 J/g･°C) is heated and then placed into 400.0 g of…

A:

Q: An unknown mass of each substance, initially at 23.0°C, absorbs1.95 * 103 J of heat. The final…

A:

Q: An 80.0 g sample of metal, initially at 96.0°C, is placed into 150. g of water initially at 26.0°C…

A: This is the thermo-equilibrium situation.  Loss of heat of the metal = Gain of heat by the water

Q: A 1.22-kg piece of iron at 126.5 °C is dropped into 981 g water at 22.1 °C. The temperature rises to…

A: here the question is given,

Q: A 130.3 g piece of copper (specific heat 0.38 Jig. C) is heated and then placed into 400.0 g of…

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

Q: 1.A 125 - g sample of cold water and a 283-a sample of hot water are mixed in an insulated thermos…

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

Q: When one mole of gaseous ethanol, C 2H 5OH, reacts with three moles of gaseous oxygen, two moles of…

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: When a solid dissolves in water, heat may be evolved or absorbed. The heat of dissolution…

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

Q: A 145.9 g piece of copper (specific heat 0.380 J/g･°C) is heated and then placed into 400.0 g of…

A: Mass of water(m1) = 400.0 g Change in Temperature (ΔT1) = 22.2-20.7 °C = 1.5 °C Mass of Copper (m2)…

Q: piece of unknown metal with a mass of 24.31 g is heated in boiling water to 90.51°C and then dropped…

A: The solution is provided in the next step: Given data: * Mass of metal is 24.31 g. * Mass of water…

Q: A 128.7 g piece of copper (specific heat 0.38 J/g･°C) is heated and then placed into 400.0 g of…

A: The heat absorbed by the system is given by the following equation. q= mC△T q-Heat absorbed or…

Q: Data for Calorimetry Part A: Mass of Unkown metal sample = 20.331 g Mass of empty calorimeter =…

A:

Q: A coffee-cup calorimeter contains 70 mL of water with an initial temperature of 24.9°C. An unknown…

A:

Q: A 130.3 g piece of copper (specific heat 0.380 J/g•°C) is heated and then placed into 400.0 g of…

A:

Q: A 118.7 g piece of copper (specific heat 0.38 J/g･°C) is heated and then placed into 400.0 g of…

A:

Q: A coffee cup calorimeter with a heat capacity of 28.9 J/°C is set up to analyze an unknown metal…

A: we need to determine the identity of the metal according to the given data

Q: coffee-cup calorimeter contains 30 mL of water with an initial temperature of 24.8°C. An unknown…

A:

Q: A 133.5 g piece of copper (specific heat 0.380 J/g·°C) is heated and then placed into 400.0 g of…

A:

Q: A 133.5 g piece of copper (specific heat 0.380 J/g•°C) is heated and then placed into 400.0 g of…

A: According to law of conservation of energy,  Heat released by the copper = Heat absorbed by water.

Q: In the laboratory a student finds that it takes 28.7 Joules to increase the temperature of 13.1…

A: we have to calculate specific heat of mercury

Q: A 142.7 g piece of copper is heated and then placed into 400.0g of water initially at 20.7 C. The…

A:

Q: A 50-g block of aluminum metal (S=0.89 J/g-°C), initially with a temperature of 180°C, was dropped…

A: Given in question, Mass of aluminum block = 50 g Specific heat capacity of aluminum = 0.89  J/g-°C…

Q: A 150.0 g block of lead at 100.0 °C is placed in a calorimeter with 50.0 g of water at 22.0 °C. The…

A:

Q: A 2.15-gram raw cashew nut is burned. The heat released raises the temperature of a 100.0-gram…

A: Given : Mass of water = 100.0 g Mass of cashew = 2.15 g Initial temperature of water = 18.2 oC Final…

Q: A piece of iron (specific heat, 0.444 J/g•°C) is added to 127.31 grams of water (specific heat,…

A:

Q: Find the heat of metal and the specific heat capacity (below are the values) Mass of metal…

A: According to the law of conservation of energy, heat can neither be created nor destroyed, it can be…

Q: A piece of unknown metal with a mass of 23.78 g is heated in boiling water to 97.4°C and then…

A: Specific heat  of substance defined as the heat capacity  of  sample of  substance  is divided by…

Q: In the laboratory a student finds that it takes 62.2 joules to increase the temperature of 10.3…

A: Given data,Heat=62.2JMass of Fe=10.3gInitial temperature=23.7oCFinal temperature=38.4oC

Q: A coffee-cup calorimeter contains 50 mL of water with an initial temperature of 24.8°C. An unknown…

A: Given: Volume of water = 50 mL  Initial temperature of water = 24.8 oC And the final temperature of…

Q: A 113.9 g piece of copper (specific heat 0.38 J/g･°C) is heated and then placed into 400.0 g of…

A: Q = m . s . ∆T Heat given = heat taken

Q: A calorimetry experiment was done on a mystery piece of metal and the data was recorded in the table…

A: The given data : The mass of the mystery metal = 89.20 g The initial temperature of the metal =…

Q: Computation of Calories per Mass of Food Mass of can (g) 12.62 Mass of can and water (g) 102.04…

A: The heat is given by: Q = m×c×ΔT Q = heat m = mass c = specific heat ΔT = temperature change

Q: A sample of aluminum (c = 0.900 J/g°C) is heated from 20.8°C to 38.7 °C using 3,750 J of energy.…

A: * Specific heat capacity of  aluminium ; C = 0.900 J/g°C  * ∆T = change in temperature = T2 - T1 T2…

Q: A 102.8g sample of a metal initially at 183.0 C is placed in 35.0 ml of water initially at 25.0 C.…

A:

Q: m cold Mass of cold water (g) = 50 g %3D Tic Initial temperature of cold water =15 C m hot Mass of…

A: When the hot and cold water mixed together then the intermediate temperature is the final…

Q: the laboratory a student finds that it takes 35.9 Joules to increase the temperature of 11.7 grams…

A:

Q: A sample of cobalt (CpCo = 0.101 J/g˚C) at 200.˚C is dropped into a calorimeter containing 50.0…

A: Specific heat capacity of Cobalt (CpCo ) = 0.101Jgram.°C Initial temperature of Cobalt (CoTi) =…

States of Matter

The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates). 

Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.