My gosh this is exactly the same question as one of my HW questions! But anyway here:
Ceres: 9.43 * 1020 kg
Pallas: 2.11 x 1020 kg
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earths mass in scientific notation is 5.98*1024kg
Mercury's mass in scientific notation is 3.3010 x 1023 kg.
Scientific notation is a way of representing numbers: it does not have any mass and so there are 0 lots of 0.8g in scientific notation.
The earth's mass in kg is:5.9736 x 1024 in scientific notation5,973,600,000,000,000,000,000,000 in standard notation
Mass = 4.87*1024 kg, approx. Average density = 5.42 g/cm3 (scientific notation irrelevant). Volume = 9.28*1020 m3.