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JEE Advanced 2020Paper 1
Exam
JEE Advanced
Year
2020
Paper
Paper 1
Subject
Chemistry
Chapter
Some Basic Concepts of Chemistry

JEE Advanced 2020 · Paper 1 · Chemistry · Some Basic Concepts of Chemistry

Aluminium reacts with sulfuric acid to form aluminium sulfate and...

Aluminium reacts with sulfuric acid to form aluminium sulfate and hydrogen. What is the volume of hydrogen gas in liters (L)( L ) produced at 300K300K and 1.01 . 0 atm pressure, when 5.4g5 . 4g of aluminium and 50.0mL50 . 0mL of 5.0M5 . 0M sulfuric acid are combined for the reaction? (Use molar mass of aluminium as 27.0gmol−127 . 0g{mol}^{- 1}, R=0.082atmLmol−1K−1R = 0 . 082atmL{mol}^{- 1}{K}^{- 1})

Correct answer

0

Step-by-step solution

2AI+3H2SO4⟶AI2(SO4)3+3H22AI + 3{H}_{2}{SO}_{4} ⟶ {AI}_{2}{\left({SO}_{4}\right)}_{3} + 3{H}_{2}

5.727\dfrac{5 . 7}{27} 50×51000\dfrac{50 \times 5}{1000}

=0.2mole= 0 . 2mole =0.25mole(Limitingreagent)\mathop{= 0 .25 mole}_{( Limitingreagent )}

∴∴ 0.25moleH20 .25 mole{\text{H}}_{2} is formed

PV=nRTPV = nRT

V=nRTP=0.25×0.082×3001atmV = \dfrac{nRT}{P} = \dfrac{0 . 25 \times 0 . 082 \times 300}{1atm}

=6.15= 6 . 15 litre

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