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1. You have 4 moles of NaCl. How many particles are present?

User Anton M
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1 Answer

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To calculate the molecules present in the given moles we will apply for Avogadro's number. Avogadro's number tells us that in one mole of any substance there are 6.022x10^23 molecules.

Therefore if we have 4 moles of NaCl we will have:


\begin{gathered} moleculesNaCl=GivenmolNaCl*(6.022\cdot10^(23)moleculesNaCl)/(1molNaCl) \\ moleculesNaCl=4molNaCl*(6.022\cdot10^(23)moleculesNaCl)/(1molNaCl) \\ moleculesNaCl=2*10^(24)moleculesNaCl \end{gathered}

In 4 moles of NaCl there are 2 x10^24 molecules

User Denis Arslanbekov
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