Stoichiometry

rain-coat SG

Anyone knows what is that? its in chem tys ans scheme pg A8. i only know what is mole ratio

unclebutcher SG

it simply means a moles of A reacts with b moles of B. thus number of moles of A reqd to react with b moels of B is a.

Hocklez SG

thought is the whole chpt about the reaction and the mole ratio.

u asking for definition?

rain-coat SG

so its the same as mole ratio? is it a must to wrte that in O level of can just write mole ratio?

unclebutcher SG

?????????? in o level of??????

yeah its mole ratio

but o level u can say

as 1 HCL (=+ one more -) 1NaOH

thus by stoichiometry

0.0500 mole of hcl reacts with 0.0500 mole of naoh

Hocklez SG

it means a whole chpt about mole ration, redox reaction, writing of reaction equation... alot...

unless u wan definition, i am not sure how to tell u also...

http://en.wikipedia.org/wiki/Stoichiometry

AndrewPKYap SG

it is the method for calculating the amounts required for, for example, chemical reactions...

so mole ratio is used in Stoichiometry and Stoichiometry uses atomic weights, molecular weights and so on...

If the question is, what do you use to calculate the amounts required for chemical reactions, the answer is Stoichiometry

and the answer to what is Stoichiometry is : the method of calculating the amounts required for chemical reactions using concepts like mole ratio, atomic weights and so on...

rain-coat SG

Pure chem.

Can just say by comparing mole ratio, mass of *compound* found is 2g? or can write equations in the 2 or 3 lines given?

wishboy SG

i love this chapter...
easiest to score Very Happy

unclebutcher SG

no. you have to compare thru number of moles, not mass.

number of moles = mass/ mr

Deadly SG

this is just maths + some common sense

rain-coat SG

Ok thanks!