The mass of 3.0 x 10²³ molecules of nitrogen gas is 13.95 g.
<h3>Mass of the Nitrogen gas</h3>
The mass of one mole of Nitrogen gas is 28 g/mol.
<h3>Number of atoms </h3>
The number of atoms in one mole of Nitrogen gas is 6.022 x 10²³ molecules.
The mass of Nitrogen gas in the given number of molecules is calculated as follows;
6.022 x 10²³ --------------------- 28 g/mol
3.0 x 10²³ ----------------------------- ?
Thus, the mass of 3.0 x 10²³ molecules of nitrogen gas is 13.95 g.
Learn more about mass of gas molecules here: brainly.com/question/11641158
Answer:
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Explanation:
To determine the mass of the iceberg, we simply multiply the density with the volume. Density is a value for mass, such as kg, divided by a value for volume, such as m3. Density is a physical property of a substance that represents the mass of that substance per unit volume. Remember that the units should be homogeneous. We calculate as follows:
mass = density x volume
mass = 0.92 g /cm^3 ( 9470 ft^3) ( 30.48 cm / 1 ft )^3 ( 1 kg / 1000 g ) = 265.55 kg
