Chemistry Help needed Limiting REACTANT ?

[Suhaib]

Anyone please help me with LIMITING REACTANT IN CHEMISTRY any notes or guide me .........?

 

[Ram97]

Limiting Reactants in Moles???

 

[Suhaib]

yes !

 

[Ram97]

Can you give me a qs. so that I can help you according to it???

 

[Suhaib]

ok wait 5min

 

[Suhaib]

1 : Calculate mass of water produced, when 50 g of H2 reacts with 50 g of O2 ? what is the limiting reactant in this .?
reaction : 2H2 + O2 > 2H2O

 

[Suhaib]

2 : Calculate mass of sodium nitrate (NaNO3) produced from 300 g of Sodium Hydroxide (NaOH) and 200 g of Nitric Acid HNO3.
Whats limiting reactant in it ?
NaaOH + HNO3 > NaNO3 + H2O

 

[Dashing Cancerian]

1 : Calculate mass of water produced, when 50 g of H2 reacts with 50 g of O2 ? what is the limiting reactant in this .?
reaction : 2H2 + O2 > 2H2O

For this you need to take the moles of hydrogen by using the given mass 50 g. take the relation that 2 moles of hydrogen react to one mole of oxygen. so the moles here of hydrogen will be
Moles=50/2= 25 moles
Moles(O2) =50/32 =1.5625
but a/c to equation 2 moles of hydrogen require 1 mole of oxygen but there are only 1.5625 moles of O2 so )2 is the limiting reactant. So, now the mass of water produced is will be taken by taking moles of water.

So now if u still dont get it then tell me i vl use the second question to explain...

 

[Suhaib]

I got it ! No need to explain 2nd one and thanks for the Help!

 

[Dashing Cancerian]

Anytym