dear 4B,
sorry for the super late post. Hope this helps for those who's moles cannot make it...
one super important tip:
"if u can't even start, just find moles of whatever info that's given."
Example 1:
Butene burns in oxygen according to the following equation :
C4H8 + 6 O2 -----> 4 CO2 + 4 H2O
What mass of water is formed when 7 g of butene is burnt? (C : 12; H :1; O : 16)
Example 2:
In a combustion reaction, 4cm3 of methane burned completely in 10cm3 of oxygen.
CH4 (g) + 2O2 (g) -----> CO2 (g) + 2H2O (l)
What volume of gas would be left behind?
(argh i give up. i'm a blogging idiot. if u cant see this, the ans is 6cm3.)
Codes and Image Headers: Elle
