Some Basic Concepts Of Chemistry Question 125
Question: How many grams of $ CaO $ are required to neutralize 852 g of $ P _4O _{10} $ ?
Options:
A) 1008 g
B) 108 g
C) 1800 g
D) 3600 g
Show Answer
Answer:
Correct Answer: A
Solution:
[a] This neutralization reaction will be : $ 6CaO+P _4O _{10}\to 2Ca _3{{(PO _4)}_2} $
$ 852gP _4O _{10}\equiv 3molP _4O _{10} $ 1 mole of $ P _4O _{10} $ neutralises 6 mol $ CaO $ 3 moles of $ P _4O _{10} $ will netralise 18 moles of $ CaO $ Mass of $ CaO=18\times 56=1008g $
