What is the mass (in g) of 7 atoms of helium?

Question

Jules Bruno · Accepted Answer

We’re being asked to determine the mass of 7 atoms of helium.We can calculate the mass of the atoms using the following steps:Step 1: Convert the number of atoms to moles (using the Avogadro’s number)[readmore]Step 2: Convert the moles to mass (using molar mass).atoms tungsten (Avogadro’s number) → moles tungsten (molar mass) → mass tungstenGiven:                        7 helium atoms                                    Molar mass He = 4.003 g/mol                   (form the periodic table)                                    Avogadro’s number = 6.022 x 1023 entities                                    entities = atoms, ions, molecules, particles, formula unitsCalculate the mass of the helium (He) atoms.mass He atoms = 7 He atoms×1 mole He6.022×1023 He atoms×4.003 g He1 mole Hemass He atoms = 4.6x10-23 gThe 7 He atoms will have a mass of 4.6x10-23 g.

Problem: What is the mass (in g) of 7 atoms of helium?

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Problem Details

Problem: What is the mass (in g) of 7 atoms of helium?

FREE Expert Solution

Problem Details

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