1.calculeaza masa fiecarui substante luate in cantitate de substanta de 10 mol:
a)h2o b)co2 c)o2 d)h2



2.calculeaza volumul (c.n)gazelor,in cazul in care cantitatea de substante este egala cu:
a)2 mol b)0,1 mol c)10 mol d)0,5 mol

1a) 1 mol H2O.........18 g
10 moli H2O.....................x

x=180g

b)
1 mol CO2..............44g
10 moli CO2............................x
x = 440g
c) 1 mol H2................2g
10 moli H2......................x
x=20g

2.
a) 1 mol gaz......................22,4L
2 moli gaz.............................x
x=44,8L
b) 1 mol gaz.........................22,4L
0,1 moli gaz........................................x
x=2,24L
c) 1 mol gaz..............................22,4 L
10 moli gaz....................................x
x = 224 L
d) 1 mol gaz......................22,4L
0,5 moli gaz.......................x
x = 11,2 L

multumesc mult