CHEMISTRY | MOLE CONCEPT | Question 04
Based on the balanced equation
C4H8 + 6O2 → 4 CO2 + 4 H2O
Calculate the number of excess reagent units remaining when 28 C4H8 molecules and 228 O2 molecules react.
-
DATA GIVEN:
Mole of C4 = 28 moles
Mole of O2 = 228 O2
Equation
C4 + 6 O2 → 4 CO2 + 4 H2O
-
Mole of excess reagent
Mole ratio for C4H8
= 28 moles /1 mole
= 28
Mole ratio for O2 = 228 moles / 6 moles
= 38
Limiting is C4 While Excess is O2 from
I mole of C4 Ξ 6 mole of O2
28 moles of C4 Ξ ?? of O2
= 28 mole × 6 mole /1 mole
= 168 moles of O2 of reacted
Mole remain = original mole – reacted mole
= 228 – 168
= 60 mole
Mole of excess reagents remain was 60 units.
More questions
Chemistry questions are much EASIER when you clearly understand the concept. With Smart Darasa exprole concepts in fun and interactive way.
Learn more »Send Your Chemistry Question
Are you a STUDENT | PARENT | TEACHER, Send your Chemistry question for FREE and we will get back to you with the solution or relavant link with similar question. We receive questions every day from 08:00hrs to 16:00 EAT. Depend on volume of questions, we send solutions the same day from 18:00hrs to 20:00hrs EAT or later next day.