Answered

Before arc welding was developed, a displacement reaction involving aluminum and iron(III) oxide was commonly used to produce molten iron (the thermite process). This reaction was used, for example, to connect sections of iron rails for train tracks. Calculate the mass of molten iron produced when 1.50 kg of aluminum reacts with 25.0 mol of iron(III) oxide.



Answer :

The mass of iron produced is 2.79kg

Steps

molecular equation

2Al (s)+ Fe2O3 (s)--> 2Fe (s) + Al2O3 (s)

no of moles of  Fe2O3 is 25.0 mol

no of moles of Al =(1.5kg Al)(1000g / 1kg)(1molAl / 26.98g Al)

=55.60mol Al

the ratio between aluminium and Fe2O3 is 2:1

The mass of iron produced

mass of fe= (25mol Fe2O3)(2mol Fe/ 1mol Fe2O3)(55.85g Fe / 1mol Fe)

=2792.5g Fe

The mass of iron produced is 2.79kg

What is displacement response and what are two examples?

A displacement reaction is a chemical process in which a less reactive element displaces a more reactive element from its compound. iron sulphate and copper are produced from a copper sulfate solution. zinc sulphate and copper are produced from a solution of copper sulfate.

learn more about displacement reaction  here

https://brainly.com/question/20690229

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