100 cm3 of oxygen is made to react with 50 cm 3 of hydrogen, and...

JAMB 1982

100 cm³ of oxygen is made to react with 50 cm ³ of hydrogen, and the whole reaction mixture was then passed through anhydrous calcium chloride. What is the volume of gas left?

A. 5 cm³
B. 25 cm³
C. 50 cm³
D. 75 cm³
E. 100 cm³

WAEC and NECO CBT Software for Computers and Laptops - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now

Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts

Your School's Whatsapp Group - Join Us now

Correct Answer: Option D

Explanation

2H₂ + O₂ → 2H₂O
2V₃ 1V₃ 2V
50cm 100 —
50cm 25cm³ 50cm³
Volume of gas left = (100 - 25)cm³ of O₂ = 75 cm³ of O₂

Previous Next

Go back to Chem classroom

Report an Error Ask A Question Download App

WAEC and NECO CBT App for Mobile Devices - Candidates, Schools, Centres, Resellers - 100% Offline -Download Now

Contributions ({{ comment_count }})

Please wait...

{{ settings.no_comment_msg ? settings.no_comment_msg : 'There are no comments' }}

Quick Questions

heat energy? Answer this

2 Answers · Physics · 1 year ago
a ship sails 340km in direction 225⁰, then sails 570km in the direction 035⁰. how far is the final position... Answer this

2 Answers · Mathematics · 2 days ago
Calculate the mass of iron (ii) sulphide required to react with dilute HCl to provide 112cm3 of H2S gas at... Answer this

3 Answers · 5 years ago

100 cm3 of oxygen is made to react with 50 cm 3 of hydrogen, and...

Correct Answer: Option D

Explanation

Contributions ({{ comment_count }})

Please wait...

Modal title

Report

Block User

{{ feedback_modal_data.title }}

Quick Questions

Post your Contribution

Sign In