Question
Lead has mass of 23.94g and volume of 2.10cm. Find the density in the SI units (kg/m3).give your answer in normalised scientific notation to 2 decimal places.
Answers
GPT 3.5
To find the density in SI units (kg/m^3), we first need to convert the mass from grams to kilograms and the volume from cm^3 to m^3.
1 g = 0.001 kg
1 cm^3 = 0.000001 m^3
Mass in kg: 23.94g * 0.001 kg/g = 0.02394 kg
Volume in m^3: 2.10 cm^3 * 0.000001 m^3/cm^3 = 0.0000021 m^3
Density = Mass/Volume
Density = 0.02394 kg / 0.0000021 m^3
Density = 11371.42857143 kg/m^3
Rounding to two decimal places, the density of lead in SI units is 11371.43 kg/m^3.
1 g = 0.001 kg
1 cm^3 = 0.000001 m^3
Mass in kg: 23.94g * 0.001 kg/g = 0.02394 kg
Volume in m^3: 2.10 cm^3 * 0.000001 m^3/cm^3 = 0.0000021 m^3
Density = Mass/Volume
Density = 0.02394 kg / 0.0000021 m^3
Density = 11371.42857143 kg/m^3
Rounding to two decimal places, the density of lead in SI units is 11371.43 kg/m^3.