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

Q: According to NASA, the space shuttle's external fuel tank for the main propulsion system carries…

A: For determining the amount of limiting reactant or excess reactant, the mole ratio of reactants in a…

Q: Calculate the number of moles of methane needed to complete the heating process.

A: Given information:Mass of ice = 10 kgInitial temperature = -20 °CFinal temperature = 70 °CCp,ice = +…

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: Methane gas , CH 4 , burns in air to produce carbon dioxide and water . What mass of water is…

A: Mass of methane = 500 g  We need to find the mass of water produced by combustion of methane.

Q: How much energy (in kilocalories and kilojoules) is involved in the production of 0.700 mol of NH3?

A:

Q: If 2.00 moles of H2 and 1.55 moles of O2 react how many moles of H20 can be produced in the reaction…

A: The balanced reaction taking place is given as, => 2 H2 (g) + O2  → 2 H2O (g) Given: Moles of H2…

Q: How many grams of FF are in 415415 g CaF2CaF2?

A: Given information: Mass of calcium fluoride = 415 g

Q: When 25.5 grams of C5H10 undergoes combustion with a 75.0 g sample of oxygen, how many grams of…

A:

Q: The AP Biology teacher is measuring out 647.0 g of dextrose (C6H12O6) for a lab. How many moles of…

A:

Q: How many grams would be 4.87 mol of C,H,,?

A: Given :- number of moles of C5H12 = 4.87  To calculate :- mass of C5H12 (in g)

Q: Ascorbic acid (C₆H₈O₆) is also known as Vitamin C. How many molecules of C₆H₈O₆ does a Vitamin C…

A:

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

A: Determination of moles of sucrose as; Mass of sucrose = 11.0 g Molar mass of sucrose = 342.3 g/mol…

Q: Capsaicin, the compound that gives the hot taste to chili peppers, has the formula C18H27NO3. If you…

A: 1 mole of a substance contains Avogadro's number.

Q: How many grams of carbon dioxide will you get if you burn 400 lb of a hydrocarbon that contains…

A: Answer

Q: How many grams of C are in 44.7 g of C6H10S?

A: Mass of 1 mole = molar mass  1 mol AB contain 1 mole A and 1 mole B

Q: How many grams of O are in 565 g of Na, O? mass: g * TOOLS X10

A:

Q: The average nicotine (C10H14N2) content of a Camel cigarette is 1.93 mg. Suppose an individual…

A:

Q: Consider Cl2+F2=CLF3 (ΔH°f = -164.65 kJ/mol) . 1. If 42 g of F2 is combined with 142 g of Cl2, how…

A: Balanced chemical equation: Cl2  +   3F2  ------>   2ClF3 Number of moles = Mass/molar mass

Q: A 85.6 g sample of Fe304 reacts with 18.2 g of CO to form FeO and CO2. FezO4(s) + CO(g) 3FEO(s) +…

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: 1. A sample of 2.8 g of Al(s) reacts with a sample of 4.15 g of Ch(g) according to the following…

A:

Q: what is the mass of a drop of CH3OH containing 2.60x1022 of CH3OH?

A: Given: number of molecules of CH3OH =  2.60 x 1022  To Calculate: Mass of a drop

Q: Consider the chemical equation: C2H5OH + CO2 = C6H12O6. How many grams of C6H12O6 can be produced…

A:

Q: Given the following three sequential reactions:  1) N2 (g) + 3H2(g) -> 2NH3 (g) 2) 4NH3 (g) + 5O2…

A: This is a multi step reaction in which we can find out first number of moles of NO2(g) from the…

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

A: According to the law of conservation of mass, "Total mass of the reactant is equaled to the total…

Q: Which of the major physical laws of chemistry are being tested when you calculate the percent…

A: Percent recovery is calculated by the following formula % recovery = (amount recovered/initial…

Q: A certain nut crunch cereal contains 11.0 grams of sugar (sucrose, C12H22O11) per serving size of…

A: The relation between mass and moles is shown below:Mass in g = (Number of moles) (molar mass)The…

Q: How many molecules of C2H6 are there in 21.4 g of C2H6?

A:

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

A: The objective of the question is to find out the mass of cereal that must be consumed to intake a…

Q: A certain nut crunch cereal contains 11.0 grams of sugar (sucrose, C12H22O11) per serving size of…

A: Number of moles of any substance are obtained by dividing it's mass by molar mass.

Q: Ascorbic acid (C₆H₈O₆) is also known as Vitamin C. What quantity in molecules of C₆H₈O₆ does a…

A: To find molecules of vitamin C, first convert mass in grams then divide it by molar mass to get its…

Q: How many molecules are present in 18.5 g of CH3CH2OH?

A: The mole concept is used for explaining the concentration of atoms molecules or ions in a solution.…

Q: A cereal contains 11.0 grams of sucrose (C12H22O11) per 60.0 grams of cereal. What mass in grams of…

A: Mass of sucrose  per 60 g of cereal = 11.0 gNumber of moles of sucrose consumed = 0.0424 molesMass…

Q: An experiment was done : Synthesis of a potential enzyme inhibitor The product achieved from the…

A: Given that, the reaction of 4-hydroxyacetophenone with methane sulfonyl chloride in presence of…

Q: If I start with 25.0 g of lead (iII) nitrate and 15.0 g of sodium iodide, how many grams of sodium…

A:

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.