The density of lead is 11.35g.cm.what will be the mass in kilograms of a 2dm sample of lead ?
2dm is length, not volume.
2dm^3 = 2(10cm)^3 = 2000cm^3
Now use that to get the mass in g, then convert that to kg.
To find the mass in kilograms of a 2 dm sample of lead, we need to convert the given volume into cubic centimeters (cm³) to match the density unit.
First, we have to convert the volume from dm³ to cm³:
1 dm³ = 1000 cm³
Therefore, a 2 dm sample would be:
2 dm³ = 2000 cm³
Now, we can use the formula for density, which is:
Density = Mass / Volume
Rearranging the formula, we can solve for Mass:
Mass = Density x Volume
Substituting the given values:
Mass = 11.35 g/cm³ x 2000 cm³
Now, we can calculate the mass:
Mass = 22700 g
To convert grams to kilograms, divide by 1000:
Mass in kilograms = 22700 g / 1000 = 22.7 kg
Therefore, the mass of a 2 dm sample of lead is 22.7 kilograms.