Xiao Ming was helping his mother cook in the kitchen. The attentive Xiao Ming discovered that the two bottles of soy sauce and peanut oil that he just bought were both 500g and had different volumes.

Xiao Ming was helping his mother cook in the kitchen. The attentive Xiao Ming discovered that the two bottles of soy sauce and peanut oil that he just bought were both 500g and had different volumes. (1) Xiao Ming

(1) According to ρ=mv:

For soy sauce and peanut oil with the same mass, the volume of soy sauce is less than that of peanut oil,

So the density of soy sauce is higher than that of oil Large;

(2) Mass of peanut oil

m=m total-m remainder=140g-97.6g=42.4g;

Volume of peanut oil:< /p>

v=53ml=53cm3,

Density of peanut oil:

ρ=mv=42.4g53cm3=0.8g/cm3;

Data As shown in the following table:

The total mass of the beaker and peanut oil (g) The mass of the beaker and remaining peanut oil (g) The mass of peanut oil (g) The volume of peanut oil in the graduated cylinder (cm3) The density of peanut oil (g/cm3) 140 97.6 42.4 53 0.8 (3) Holding the weight by hand violates the rules for using the balance. The correct way is to use tweezers.

So the answer is: (1) soy sauce; (2) the data is as shown in the table above; (3) hold the weight directly with your hands.

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