CBSE (Science) Class 11CBSE
Share
Notifications

View all notifications
Books Shortlist
Your shortlist is empty

Solution for The Drain Cleaner, Drainex Contains Small Bits of Aluminum Which React with Caustic Soda to Produce Dihydrogen. What Volume of Dihydrogen at 20 °C and One Bar Will Be Released When 0.15g of Aluminum Reacts? - CBSE (Science) Class 11 - Chemistry

Login
Create free account


      Forgot password?

Question

The drain cleaner, Drainex contains small bits of aluminum which react with caustic soda to produce dihydrogen. What volume of dihydrogen at 20 °C and one bar will be released when 0.15g of aluminum reacts?

Solution

The chemical equation for the reaction is

2 Al + 2 NaOH + H20 -> 2 NaAl02 + 3H2 (3 x 22400 mL At N.T.P)
2 x 27 = 54 g.

54 g of Al at N.T.P release

H2 gas = 3 x 22400 0.15 g of Al at N.T.P release

`H_2 " gas" = (3xx22400xx0.15)/54`

= 186.7 mL

N.T.P condition `V_1` = 186.7 mL , `V_2 = ?`

`P_1` = 1.013 bar ,   `P_2` =  1 bar

`T_1` = 0 + 273 = 273 K,  `T_2` = 20 + 273 = 293 K

Accourding to gas equation

`(P_1V_1)/T_1 = (P_2V_2)/T_2`   or` V_2 = (P_1V_1T_2)/(P_2T_1)`

`V_2 = (1.013 "bar" xx 186.7 mL xx 293K)/ (1 "bar" xx 273 K)`

= 203 mL

  Is there an error in this question or solution?

APPEARS IN

 NCERT Chemistry Textbook for Class 11 Part 1 (with solutions)
Chapter 5: States of Matter
Q: 6 | Page no. 153

Video TutorialsVIEW ALL [1]

Solution for question: The Drain Cleaner, Drainex Contains Small Bits of Aluminum Which React with Caustic Soda to Produce Dihydrogen. What Volume of Dihydrogen at 20 °C and One Bar Will Be Released When 0.15g of Aluminum Reacts? concept: Laws of Chemical Combination - Avogadro Law. For the courses CBSE (Science), CBSE (Science)
S
View in app×