Molar volume at STP = 22,4 L
1 mole -------------- 22,4 L
x mole -------------- 11,2 L
x = 11,2 / 22,4
x = 0,5 moles of N2
1 mole --------------- 6,02.10²³ molecules
0,5 moles ------------ y molecules
y = 0,5 . 6,02.10²³
y = 3,01.10²³ molecules
(2) a base because they accept H+ ions. NH3 is the conjugate base of NH4+.
Answer:
4
Explanation:
in (C2H2O2)2 there are 4 hydrogen atoms
They are both physical changes (change in physical structure/appearance)
hope this helps :)
This would equal -1 or negative one