oblicz gestosc metanu wiedzac ze w temperaturze 0 C i pod cisnieniem 1013hPa 16 g metanu zajmuje objetosc 22.4 dm szesciennych
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ms = 16g
V = 22,4 dm³
d=ms/v
d= 16g /22,4 dm3 ≈ 0,7 g/dm3