Part A In the reaction shown below, kJ of heat are released per mole of carbon dioxide(g) that is produced. C3Hg(g) + 5 02(g) 3 CO2(g) + 4 H20(g) AH = -2045 kJ Express your answer using four significant figures.

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: How much heat is needed to heat 26.9 grams of metal from 19 degrees C to 101 degrees C? The specific…

A:

Q: Copper is heated from 20.2°C to 75.8°C. Calculate the specific heat (c) of copper, given that 4280J…

A: Given data contains, Final temperature is 75.8°C. Initial temperature is 20.2°C. Heat given is 4280…

Q: Determine the heat change (in kJ) when 15.6 grams of ethanol (C2H6O) is raised from -145.7 degrees c…

A:

Q: A 1.37 kg sample of an unknown substance was heated up using 8,011 cal of energy from 45.1 °C to…

A: We are given the sample of unknown  species  mass=1.37 kg=1370 gm Energy Q=8011 cal 1 cal =4.184…

Q: In the following experiment, a coffee-cup calorimeter containing 100. mL of H2O is used. The initial…

A:

Q: 9. If a 85.0°C iron rod that weighs 1.20 kg was placed in 15.2 L of water at 20.0°C, what is the…

A:

Q: A chemist measures the energy change AH during the following reaction: 2 HgO(s) → 2 Hg(1)+O2(g) AH=…

A: Given reaction is, 2 HgO (s)  →  2 Hg (l) + O2 (g)                     ∆H = 182 kJ As,  ∆H is…

Q: Match each of the following with its correct answer In the following thermochemical equation:…

A: Since you have posted multiple question will solve the first question for you to get the remaining…

Q: 11. A combustion reaction releases 1.435 x 10° kJ of heat that is absorbed by 8.00 kL of 22.1 °C…

A:

Q: Question 6

A: Given information:Mass of sample = 1.00 kgAmount of heat or energy added to it = 35.0 kJInitial…

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: Methanol (CH3OH), which is used as a cooking fuel, burns in oxygen to produce carbon dioxide and…

A: Mass of methanol = 74.0 g Heat release for 2 mole methanol = 726 KJ Heat release for 74 g methanol =…

Q: When 50.0 g of 0.200 M NaCl(ag) at 24.1 °C is added to 100.0 g of 0.100 M A9NO3(aq) at 24.1 °C in a…

A: Given: 0.200 M NaCl         mass  of NaCl =50. 0 gram         specific heat = 4.20 J/g C   find:…

Q: How much heat is released (negative value) if 19.955 g of a metal with heat capacity of 0.385 J/g°C…

A: The given mass of the metal (m) = 19.955 g Heat capacity of the given metal (C) = 0.385 J/g  °C…

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: What is the maximum amount of heat (in kJ) that can be released when 27.2 g of hydrogen sulfide gas…

A: Given mass of H2S = 27.2 g molar mass of H2S = 34.1 g/mol

Q: When a 9.01-g sample of solid iron(II) chloride dissolves in 55.7 g of water in a coffee-cup…

A: heat of dissolution is heat released when a salt is dissolved in water and it breaks into ions and…

Q: teaauajajavi When ice at 0°C melts to liquid water at 0°C, it absorbs 0.334 kJ of heat per gram.…

A: Given, Heat absorbed for melting of ice to liquid water at 0oC = 0.334 kJ/g = 334 J/g Mass of ice =…

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 67.4 g piece of titanium (specific heat = 0.523 J/g °C) is heated to 95.8 °C. It is then put in to…

A:

Q: Propane, C3H8 (approximate molar mass = 44 g/mol) is used in gas barbeques and burns according to…

A: Given: Combustion reaction of propane (C3H8) as follows: C3H8 (g) + 5 O2 (g) → 3CO2 (g) + 4H2O (g)…

Q: What is the final temperature if a 43.6 g piece of iron at 356°C is added to 147 g of water at 25°C?…

A: Interpretation- To determine the final temperature if  43.6 g piece of iron at 356°C is added to 147…

Q: Consider the following thermochemical reaction for kerosene: 2 C12H26 (1) + 37 O2 (g) 24 CO2 (g) +…

A: The given balanced chemical equation is: 2 C12H26 (l) + 37 O2 (g)→ 24 CO2 (g) + 26 H2O (l)…

Q: Methane burns with oxygen to produce carbon dioxide and water as a gas. The balanced thermochemical…

A:

Q: If 0.050 mol hydrochloric acid (HCI) is mixed with 0.050 mol of sodium hydroxide (NaOH) in a "coffee…

A: A numerical problem based on chemical thermodynamics, which is to be accomplished.

Q: The thermite reaction in which aluminum metal reacts with iron(III) oxide to produce a spectacular…

A: The reaction is as follows: 2Al(s)+Fe2O3(s)--------->Al2O3(s)+2Fe(l).          ΔH =  -202.9 kcal.…

Q: 6.139 Hydrogen is burned in oxygen to release heat (see equation below). How many grams of hydrogen…

A: To solve this problem first we have to calculate the amount of energy required and then tha mass of…

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 measures the energy change AH during the following reaction: 2 NO,(9) → N,O4(9) AH=-55.3…

A:

Q: Consider the balanced thermochemical equation given below: 2 Mg(s)  +  O2(g)  →  2MgO(s)…

A:

Q: an 33.777g piece of metal is heated in a hot water bath at 98.5°C and then cransferred to a…

A: Given, mass of metal, m =33.777 g temperature of hot water bath T1 =98.5°C Volume of water in coffee…

Q: A 350g sample of aluminum is taken out of the freezer at –20oC and placed into 500g of water at 14.6…

A: Given Mass of water = 500 g Initial temperature = 14.6°C Final temperature = 10°C Mass of…

Q: Methanol is used to heat food. The combustion of methanol can be described by the following…

A:

Q: Consider the following thermochemical equation: 2 NO, 2NO, AH = -114.1 kJ 02(g) (g) 2(9) Choose...…

A: 2NOg    +     O2g       →      2NO2g ∆H = -114.1kJ Molar mass of NO2 = 46gmol

Q: A chemist measures the energy change AH during the following reaction: 2 H₂O(1)→ 2 H₂(g) + O₂(g) ΔΗ=…

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: 22.009 g of a metal at 100.15°C was added to 15.6 g of water at 18.01°C. The temperature of the…

A: The amount of heat transferred in a system is calculated as follows,…

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: A chemist measures the energy change AH during the following reaction: C3Hg(g)+502(g) 3…

A: The given reaction is shown below.

Q: A 30.0g piece of metal is heated to 95.0 °C. The metal is then placed into 45.0 grams of water at…

A: When the heated metal is dipped in water, then heat lost by metal goes to water. Mass of metal= 30 g…

Q: 5. A 465 g chunk of iron is removed from an oven and plunged into 375 gwater in an insulated…

A: The heat transferred during the reaction can be determined the equation, q = mc∆TThe temperature of…

Q: The heat of combustion for ethane, C2H6, is 47.8 kJ/g. How much heat is produced if 9.0 moles of…

A: Mass of ethane is calculated as,

Q: 5. Phosphorus trichloride, PC, is a compound used in the manufacture of pesticides and gasoline…

A: As per student demand, solution for question number 5 follow as  5) given that : Mass of PCl3(m) =…

Q: A 44.0 g sample of an unknown metal at 99.0 °C was placed into a coffee-cup calorimeter containing…

A: Given: Mass of metal, mm=44.0 g Temperature change, ∆T=(99.0-27.9)°C=71.1 °C Specific heat, Cm=?…

Q: 2. Solid nitrogen triiodide decomposes explosively to form gaseous nitrogen (N2) and iodine (I2).…

A: Answer: In the given chemical reaction, decomposition of NI3 in nitrogen and iodine is taking place…

Q: How much heat is given off to the surroundings when 6 g of aluminum reacts according to the…

A: Thermodynamics is the branch of chemistry that mainly deals with the heat transfer between system…

Q: Carbon disulfide reacts with chlorine according to the following reaction equation: CS2(8) + 3…

A:

Crystal Structures

Solids are present all around us. They have different properties and applications. Diamond and graphite are two well-known solids. Diamond is the hardest material in the world and is used in making jewelry. Graphite on the other hand is soft. The lead of your pencil is graphite. Why are they so different in appearance and properties despite the fact they are chemically the same? Both are allotropes of carbon. The answer lies in the structure, the way constituent particles are arranged in the solids.