mmedrano1614 mmedrano1614
  • 25-04-2019
  • Chemistry
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What is the mass of 2.30 ×1022 molecules of NaOH (Molar mass = 40.0 g/mol)?

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Finti
Finti Finti
  • 25-04-2019

Answer:

1.52 g NaOH

Explanation:

The molar mass M is a physical property defined as the mass of a given substance (chemical element or chemical compound) divided by the amount of substance.

Molar mass of NaOH is 40.0 g/mol

40.0 g/mol contains 6.022 × 10²³ molecules

∴ 2.30 × 10²² molecules will contain (2.30 × 10²²) * (40.0)/6.022× 10²³

                                                             = 1.52 g NaOH

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