How many moles of NaOH are in 18.03mL of NaOH?

Chemistry
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How many moles of NaOH are in 18.03mL of NaOH


Nov 9th, 2015

Thank you for the opportunity to help you with your question!

Since you dont provide temperature i assume normal conditions meaning 25 C 1 atm 

Then the density of NaOH is 1.04 g/mL at 25 °C 

Thus we have 18.03 * 1.04 = 18.75 grams of NaOH 

The molar mass of NaOH is 40 gr / mol meaning 1 mol weighs 40 grams 

Thus the number of mols will be n = 18.75 / 40 = 0.468 mols

Please let me know if you need any clarification. I'm always happy to answer your questions.
Nov 9th, 2015

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