iven 45moles of C2H8  how many grams of this substance do I have

Q: If 454 g of NH4NO3 decomposes, how much N₂O and H₂O (in grams) are formed? mass of mass of

A: Late of conservation states that sum of masses of reactant is equal to total mass of products.…

Q: When calcium carbide is placed in a beaker of water, the reaction produces an unknown hydrocarbon…

A: #(a): Given % C = 92.2% %H = 7.8%

Q: Consider the reaction between NiS2 and O2: 2 NiS2 (s) + 5 O2 (g) ---------> 2 NiO (s) + 4 SO2 (g)…

A: The objective of the question is to determine the limiting reactant, the theoretical yield of NiO,…

Q: if 7.49g of S, 5.97g of O2 and 6.75g of H2O react, how many grams of H2SO4 will be formed?

A: Answer :- mole concept :- For any substance weight (g) divided by its molecular weight( g/mol ) is…

Q: A cereal contains 11.0 grams of sucrose (C12H22011) per 60.0 grams of cereal. How many grams of…

A: Given :-  Mass of sucrose present in 60.0 g cereal = 11.0 grams  To calculate :-  Mass of cereal…

Q: When burning 180 g of glucose in the presence of 192 g of oxygen, water and carbon dioxide are…

A: Given that : Mass of glucose = 180g Mass of oxygen = 192g Mass of water = 108g Carbon dioxide…

Q: Given the following reaction:  C3H8+5O2 = 3CO2+4H2O Using dimensional analysis: If 20.0 g of C3H8…

A:

Q: If a 2.530g magnesium sulfate hydrate sample was heated and the final mass of anhydrous magnesium…

A: Mole concept is applied to find out the quantity of any compound in moles when the mass of that…

Q: how many liters of CO2 can be produced?

A: Number of moles = mass/molar mass  1 mol gas has 22.4 L volume (at STP)

Q: Given the following balanced equation: 2 KHCO3 (s)  -->  K2CO3 (s)  +  H2CO3 (g) Molar mass of…

A: This reaction is an example of decomposition reaction Where a molecule forms several other compounds…

Q: 65.8 grams of C3H8 reacted with excess oxygen. The percent yield of water was 35.0%. How many grams…

A:

Q: A cereal contains 11.0 grams of sucrose (c12H22O11) per 60.0 grams of cereal. How many grams of…

A: Given, mass of sucrose in 60 g of cereal is = 11.0 g            moles of sucrose needed to consume =…

Q: If 10.0 grams of methane (CH4) are combusted and the percent yield of carbon dioxide is 92.0%, how…

A: The combustion reaction of methane (CH4) can be expressed as,                                CH4  +…

Q: A cereal contains 11.0g of sucrose (C₁₂H₂₂O₁₁) per 60.0 grams of cereal.How many grams of cereal…

A: The molar mass of sucrose (C12H22O11) is 342.2965 g/mol. According to the question, 11 g of sucrose…

Q: How many moles of NH4NO3 are present in a mass of 16.54 g of NH4NO3? Show work.

A: Find the moles of NH4NO3 are present in a mass of 16.54 g of NH4NO3

Q: How many molecules are in 5.6g of H2O?

A: Mass = 5.6 g Molar mass of water molecule = 18.01528 g/mol

Q: How many particles are contained in a 1.55L sample of gaseous HNO₂ @STP? Use only the following…

A: The given information is as follows:                      The volume of sample of gaseous HNO2 =…

Q: How many moles of CF4 are there in 171g of CF4

A: No. Of moles = given mass / molar mass  Given mass is 171g  Molar mass is calculated in 2 step.

Q: When 15.00 g of iron reacts with 68.0 g of sulfur. What mads of FeS is formed?

A: Limiting reagent It is the reactant that completely consumed in a reaction to form the product. The…

Q: How many molecules of glucose are present in 27.4 grams?

A: The expression for number of moles is given by, Number of moles =MassMolar mass 1 mole of a…

Q: How many grams of C are present in 1.0 mole of C2H4O2?

A: Given : The compound is C2H4O2. And moles of C2H4O2 = 1.0 mol.

Q: Given the following equation: 2 C4H10 + 13 028 CO₂ + 10 H₂O How many grams of C4H10 are needed to…

A: Given is combustion reaction of butane.Given data:Mass of H2O produced = 54.3 g

Q: How would I find the mass of Fe in 25.0g of Fe2O3

A:

Q: A cereal contains 11.0 grams of sucrose (C₁₂H₂₂O₁₁) per 60.0 grams of cereal . How many grams of…

A: Moles of sucrose is 0.0424  Grams of cereals that contains 0.0424 moles =?

Q: 3) How many grams of MgO are produced when 40.0 grams of O2 react completely with Mg?

A: The reaction is:

Q: Consider the following unbalanced equation: C2H6(g) + O2(g) → CO2(g) + H2O(g) Which amount…

A: The number of moles of any substance is defined as the ratio of mass given of that substance with…

Q: A 5.31g sample of a compound that contains only hydrogen and sulfur was combusted and yielded 10.0g…

A: Let the compound be SxHy. SxHy undergoes combustion to give SO2 and H2O. The reaction taking place…

Q: The first two steps in the industrial synthesis of nitric acid produce nitrogen dioxide from…

A: When a reaction is reversed then it's equilibrium constant is reciprocated.  When a reaction is…

Q: What is the mass (kg) of 18.32moles of aluminum carbonate?

A: The question is based on the concept of moles . we have to calculate mass of aluminium carbonate.

Q: Calculate the weight of oxygen required to yield 46.6 grams of carbon dioxide according to the…

A: Given :- mass of CO2 = 46.6 g  To calculate :- mass of O2 required (in g)  number of moles =…

Q: f the actual yield associated with the synthesis of aspirin is 4.42 grams and the theoretical yield…

A:

Q: A 6.32 gram sample of potassium chlorate was decomposed according to the following equation: 2KCIO32…

A: Given -> 2KClO3 ----> 2KCl + 3O2 Weight of KClO4 = 6.32 gm

Thermochemistry

Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.    

Exergonic Reaction

The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.