The density of lead is 11.35 g.cm .what will be the mass in kilograms of a 2dm sample of lead?

2*(10cm)^3 * 11.35g/cm^3 * 1kg/1000g = ? kg

To find the mass of a 2 dm sample of lead in kilograms, you can use the formula:

Mass = Density x Volume

First, convert 2 dm to cm by multiplying by 10:

Volume = 2 dm x 10 cm/dm = 20 cm³

Now, substitute the given density value into the formula:

Mass = 11.35 g/cm³ x 20 cm³

Perform the calculation:

Mass = 227 g

Finally, convert grams to kilograms by dividing by 1000:

Mass = 227 g / 1000 = 0.227 kg

Therefore, the mass of a 2 dm sample of lead is 0.227 kilograms.