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7. If 50. mL of a liquid weighs 41.2 g, what is the density?

Sagot :

Step 1 - Understanding the definition of density

Density is defined as the quotient between mass and volume. Basically, it measures how much volume is occupied by 1g of some substance. It is usually expressed in g/ml.

Defining it mathematically, we have:

[tex]d=\frac{m}{V}[/tex]

Step 2 - Calculating the density

If we have the volume and the mass that occupies this volume, we can calculate the density already. The exercise says m=41.2g and v=50ml, therefore:

[tex]d=\frac{m}{V}=\frac{41.2}{50}=0.82g/ml[/tex]

The density of this liquid is 0.82 g/ml.

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