Find the number N of oxygen molecules contained in the

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Description

Find the number N of oxygen molecules contained in the vessel of volume V = 2,0 l when oxygen density is 1.3 kg / m ^ 3. Oxygen molar mass M = 32 × 10 -3 kg / mol.

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Task 20670. Detailed solution with a short recording conditions, laws and formulas used in the decision, the withdrawal of the calculation formula and the answer.
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