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a) liczba atomów
1 mol Ar --- 6,02 * 10^23 at.
0,2 mol Ar --- x
-------------------------------------
x = 1,204 * 10^23 at.
b) liczba cząsteczek
1 mol Ar --- 6,02 * 10^23 cz.
0,2 mol Ar --- x
----------------------------------------
x = 1,204 * 10^23 cz.
c) objętość w warunkach normalnych
1 mol Ar --- 22,4 dm3
0,2 mol Ar --- x
-----------------------------
x = 4,48 dm3
d) masa
1 mol Ar --- 40g
0,2 mol Ar --- x
----------------------
x = 8g
AZOT:
a) liczba moli
42g N2 --- x
28g N2 --- 1 mol
-------------------------
x = 1,5 mol N
b) liczba atomów
42g N2 --- x
28g N2 --- 12,04 * 10^23 at.
-----------------------------------
x = 18,06 * 10^23 at.
c) liczba cząsteczek
42g N2 --- x
28g N2 --- 6,02 * 10^23 cz.
--------------------------------
x = 9,03 * 10^23 cz.
d) objętość w warunkach normalnych
42g N2 --- x
28g N2 --- 22,4 dm3
--------------------------
x = 33,6 dm3