Use app×
Join Bloom Tuition
One on One Online Tuition
JEE MAIN 2025 Foundation Course
NEET 2025 Foundation Course
CLASS 12 FOUNDATION COURSE
CLASS 10 FOUNDATION COURSE
CLASS 9 FOUNDATION COURSE
CLASS 8 FOUNDATION COURSE
+1 vote
10.0k views
in JEE by (40 points)
edited by
How much gas will be produced at 0 deg centigrade and 760 mm of pressure when 10g of oxalic acid was heated with concentrated sulphuric acid?

Please log in or register to answer this question.

1 Answer

+2 votes
by (63.2k points)

Oxalic acid when heated with Concentrated sulphuric acid, decompose into carbon dioxide, carbon monoxide and water. 

Sulphuric acid is a dehydrating agent.

According to the reaction, 1 mole of oxalic acid produce 1 mole of CO2 and 1 mole of CO gas.
Molar mass of oxalic acid (C2H4O2) = 126.03 g/mol     ( oxalic acid is always present as dihydrate C2H4O2.2H2O in solid state)
Number of moles of oxalic acid in 10g = 10126.03= 0.079 moles

Thus according to the reaction 0.079 moles of CO and 0.079 moles of CO2 will be produced.
Now at STP (00 celcius and 760 mmHg pressure) 1 mole of gas will occupy volume = 22.4 L
​Thus volume of 0.079 mole of  a gas = ​22.4×0.079 L
                                                  = 1.77 L
Thus there will be 1.77 L of CO2 and 1.77 L of CO gas. 

Thus total volume of gas will be 3.54 L.

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.

Categories

...