Given the following reaction: 4Fe +302 2Fe₂03 How many grams of Fe2O3 will be produced from 24.0 g of Fe and 5.00 g of O₂? grams (round to three significant figures)

Q: What is the difference in how a simple distillation is performed compared to how a fractional…

A: Distillation method is used to separate the liquid-liquid mixture, the liquid with lower boiling…

Q: For Exercises 11–15, calculate the quantities needed to prepare the solid and semisolid compounds.…

A: The mass of lidocaine cream is = 50 g The concentration of lidocaine cream is = 1.5 % The amount of…

Q: An unknown sält is freezes at a temperature of-1.4C. What is the formula of the unknown salt? Upload…

A: Formula used: ∆Tf = i Kf m

Q: definition of salt please. How can salt thwart intruders using physical force?

A: Salt is a compound formed when an acid reacts with a base. It is an ionic compound made up of…

Q: Sodium hydroxide is a substance that causes severe burns. It is used in many educational laboratory…

A: Contact with very high concentrations of sodium hydroxide can cause severe burns to the eyes, skin,…

Q: Calculate the mass percent of water in the compound Nickel(II) chloride hexahydrate

A:

Q: Imagine that you are making yourself a chocolate milk beverage, using cocoa powder. What could you…

A: The objective of the question is to understand the best way to dissolve cocoa powder quickly and…

Q: How many grams of NaCl are contained in 100.0 mL of a 7.39 M solution? Round to the hundredths…

A:

Q: Explain why doesn't oil and water mi

A: When there is an electronegativity difference between bonded atoms, such types of molecules are said…

Q: What company owns much of the bottled water industry?

A: The company that owns much of the bottled water industry is:

Q: Determine the polarity of this molecule and its solubility in water.

A:

Q: Indicate the most convenient type of distillation to distill each of the following and provide an…

A: A liquid that cannot be distilled of atmospheric pressure is distilled by vacuum distillation.…

Q: solution is prepared by mixing 7.05 grams of benzene (C6H6) in water to create a solution total…

A: Mass of benzene = 7.05 g Volume of solution = 100 mL = 0.1 L Molar mass of benzene= 78.11 g/mol

Q: A prescription calls for 120 mL of 10% codeine solution. Your stock solution of codeine is 50%…

A: Given: Volume of final solution = 120 mL Concentration of final solution = 10 % And concentration of…

Q: Water is a volatile liquid. O True O False

A:

Q: How is a supersaturated solution typically made?

A: Super saturated solution is defined as a solution that contains solute more than the amount present…

Q: Ocean water contains 3.5% NaCl by mass. How much salt is in 467 g of seawater?

A: Ocean water contains 3.5 % NaCl by mass . How much Salt is in 467 g of seawater ?

Q: For Exercises 11–15, calculate the quantities needed to prepare the solid and semisolid compounds.…

A: Given : mass of zinc oxide ointment = 20 gram Percent of zinc powder = 15 % To find : mass of zinc…

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.