wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

What weight of HNO3 is needed to convert 62 gm P4 to H3PO4 in the reaction?
P4+HNO3 H3 PO4+NO2+H2O

A
63gm
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
630gm
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
C
315gm
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
126gm
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is C 630gm
The balanced chemical reaction is given as:
P4+20HNO34H3PO4+20NO2+4H2O
Molecular weight of P4=124 amu
Molecular weight of HNO3=63 amu
From the balanced chemical equation, 1 mole of P4 reacts with 20 moles of HNO4
124 gm P4 reacts with 20×63 gm HNO4
62 gm P4 will react with 63×20×62124=630 gm HNO4

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Stoichiometric Calculations
CHEMISTRY
Watch in App
Join BYJU'S Learning Program
CrossIcon