The bottle can hold 0.5kg water, and the maximum can hold 0.8 × 103kg / m3 kerosene______ kg．

The bottle can hold 0.5kg water, and the maximum can hold 0.8 × 103kg / m3 kerosene______ kg．

Then the volume of a bottle of water is v water = m water, ρ water = 0.5 kg, 1.0 × 103 kg / m3 = 5 × 10-4 m3; according to the meaning of the question, V kerosene = V water, then the mass of a bottle of kerosene is m kerosene = ρ kerosene, V kerosene = 0.8 × 103 kg / m3 × 5 × 10-4 m3 = 0.4 kg

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