According to the following chemical equation, how many liters at STP of hydrogen gas are needed to make 3.00 tons of iron? (2000 lbs. = 1 ton; 454 g = 1 lb.) [Hint: The equation is not balanced.] %D Fe,O3 + Н2 Fe + Н.О omic

According to the following chemical equation, how many liters at STP of hydrogen gas are needed to make 3.00 tons of iron? (2000 lbs. = 1 ton; 454 g = 1 lb.) [Hint: The equation is not balanced.] %D Fe,O3 + Н2 Fe + Н.О omic

Chemistry: Matter and Change

1st Edition

ISBN:9780078746376

Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom

Publisher:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom

Chapter13: Gases

Section: Chapter Questions

Problem 86A

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Question

According to the following chemical equation, how many liters at STP of hydrogen gas are needed
to make 3.00 tons of iron? (2000 lbs. = 1 ton; 454 g = 1 lb.) [Hint: The equation is not balanced.]
%D
Fe,O3 +
Н2
Fe +
Н.О
omic

Expert Solution

Step 1

Amount of iron to be manufactured = 3 tonnes

The given equation for the reaction is

Step 2

mass of iron given = 3ton x 2000lb/ton x 454g/lb= 2724000g

No of moles of iron to be manufactured

given mass
no of moles
molecular mass
2724000g
56g/mol
=48642.86mol

Step 3

Amount of hydrogen needed

2 moles of iron need 3 moles of hydrogen
3
48642.86 moles of iron would need -x 48642.86 moles of hydrogen
2
= 72964.29 moles of hydrogen

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