Molecules of Co2 that have a lot it energy can do two different things with this energy. What are these two things?

Q: Which statement is true of energy in reactants during an endothermic reaction? The energy found in…

A:

Q: The reaction of hydrogen and nitrogen gases produces 5.00 g of ammonia and releases 3250 cal of…

A:

Q: 1) A calorimeter is used to measure the heat released when a sample of sodium hydroxide is dissolved…

A: 1) a) Given that: Mass of water (m) = 100.0 g Initial temperature (T1) = 10.0°C Final temperature…

Q: 8. What is the best fuel? Order the three samples according to the amount of heat released when 1.00…

A: General formula to calculate heat released in a combustion reaction in a calorimeter ----

Q: The specific heat of a substance is the amount of heat required to raise the temperature of one gram…

A: Given --> Q = 357 J  S = 0.362 J/g°C T1 = 24.1°C T2 = 80.6°C

Q: Write the overall reaction equation of steam methane reforming. b. Calculate the overall Keq of…

A:

Q: lacmillan Learning Carbohydrates serve as a vital source of chemical energy to the human body.…

A: 1 KJ = 0.239 Kcal  So  119 KJ = 119 X 0.239 Kcal             =  28.44 Kcal

Q: How much heat is released when 1.4 moles of hydrogen fluoride are produced? H2 (g) + F2 (g) → 2HF…

A:

Q: A 8.17 g sample of an unknown salt (MM = 116.82 g/mol) is dissolved in 150.00 g water in a coffee…

A:

Q: In winemaking, microorganisms break down the sugar in grapes into ethanol (grain alcohol) and carbon…

A: The molar mass of ethanol = 46 g  2 moles of ethanol , which weights 92.16 g produces 16.6 kcal  of…

Q: Coal power plants burn large amounts of coal, C(s), in an O2(g) atmosphere to generate electricity.…

A: For the reaction.,  C(s)  + O2(g)  -------> CO2(g) Mass of carbon burnt = 102 metric tons Oxygen…

Q: A serving size of four cookies contains 7 g of fat, 16 g of carbohydrates, and 5 g of protein. If…

A: A gram of fat has about 8  kilocalories  so 7 gm of fat is equivalent of 8*7=56 kilocalories =…

Q: The heat released when one mole of water is formed from the elements is 1,198 kJ. An experiment was…

A: A question based on chemical thermodynamics that is to be accomplished.

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 5.29 g sample of an unknown salt (MM = 116.82 g/mol) is dissolved in 150.00 g water in a coffee…

A: Given information: Mass of unknown sample = 5.29 g Mass of water = 150.00 g Heat gained by solution…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 0.29 kg sample…

A: 0.45 or 4.49 * 10-1 J/g K

Q: 7. Applying the principles of green chemistry requires some consideration of the way in which they…

A:

Q: Which of the following is the formation reaction for Na2CO3 (s)?   A. 2 Na(s) + C(s, graphite) + 3…

A: To give this answer we should know the characteristics of heat of formation reaction for Na2CO3:…

Q: When 1.75 g of CaCl2 dissolves in 125 g of water in a coffee-cup calorimeter, the temperature…

A:

Q: Consider the combustion of liquid C5H in oxygen gas to produce carbon dioxide gas and water vapor.…

A: According to the Law of conservation of mass " all atoms of different elements must be equal on both…

Q: 22.9 mL of an unknown acid was neutralized by mixing it with 50.3 mL of NaOH in an aqueous solution.…

A: Since the temperature of the solution is increased from 22.0 oC to 35.2 °C, heat is released by the…

Q: The combustion of one mole of liquid ethanol, CH3CH2OH,produces 1367 kJ of heat. Calculate how much…

A: The chemical reaction for the combustion of ethanol is represented as:

Q: A 6.61g sample of an unknown salt (MM=116.82g//mol) is dissolved in 150.00g water in a coffee cup…

A: GivenMass of unknown salt = 6.61 gMolar mass = 116.82 g/mol

Q: .A sample of solid sodium was reacted with chlorine gas to give 4.36 g of pure NaCl.  The energy…

A: Heat of formation of a compound is the heat change when one mole of that particular compound formed…

Q: 2. Carbon tetrachloride can be formed by reacting chlorine with methane: CH4 + 2 Cl2 → CCL4 + 2 H2…

A: CH4 + 2Cl2-----> CCl4 +2H2 ∆Hof (CH4) = -75 kJ/mol ∆Hof (CCl4 ) = -135 kJ/mol

Q: When sulfuric acid dissolves in water, a great deal of heat is given off. The enthalpy change for…

A: Answer:-This question is answered by using the simple concept of calculation of heat released using…

Q: 6. Calculate the amount of heat released when 1.26 x 104 grams of ammonia NH3 are produced according…

A: The given amount of ammonia is 1.26×104 g. The chemical reaction that takes place for the production…

Q: . When carbon disulfide,CS2, forms from its elements, heat is absorbed. How much heat would be…

A: Given,The reaction is →C+2S →CS2 , ∆H = +89.3 kJthis shows that when one mole of CS2 is produced ,…

Q: Write a balanced chemical equation based on the following description: solid sodium reacts with…

A: The objective of the question is to write a balanced chemical equation for the reaction of solid…

Q: 2. A solid substance has a mass of 250 grams. It is cooled by 25.00°C and loses 4.937 kJ of heat.…

A:

Q: During an experiment a student mixed two chemicals together and noted that the beaker felt warm to…

A: Introduction Thermodynamics is a branch of physical chemistry that deals with the relationships…

Q: Vanillin is a natural constituent of vanilla that is also manufactured for use in artificial vanilla…

A: Given the mass of vanillin taken for combustion = 1.013 g Since the temperature of the calorimeter…

Q: Liquefied petroleum (LP) gas burns according to the following exothermic reaction: C3H8 (g) + 502(g)…

A: Given: The specific heat capacity of water, (C)= 4.18 J/g0C The volume of water, (V) = 1.7 L= 1700…