Zn + 2HCl - - > ZnCl₂ + H₂
M Zn = 65g/mol
a) nZn = 130g / 65g mol = 2 mol
1 mol - 22,4 dm³
2 mol - v
v = 22,4* 2 / 1 = 44,8 dm³
b)
1 mol Zn - 136g
2 mol Zn - x
x = 136 * 2 / 1 = 272g ZnCl₂
c) 1 mol Zn - 2 mole kwasu
2 mol Zn - n moli kwasu
n = 2 * 2 / 1 = 4 mole kwasu
d) 1 mol - 6,02 * 10²³
4 mol - x
x = 4 * 6,02 * 10²³ / 1 = 24,08 * 10²³
