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41 votes
How many molecules of NaOH are in 56 g of NaOH?

User Kombuwa
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1 Answer

27 votes
27 votes

Answer: 7.826 x 10^23 molecules

Explanation: 1 mole of NaOH is equal to 40 g, so we can start setting up the equation by saying that 52 g NaOH= 1 mole/40 g. Since one mole= 6.02 x 10^23 representative particles, or molecules, the next step in the equation is to multiply by 6.02 x 10^23/1 mole NaOH. The final equation comes out to be:

52 g NaOH = 1 mole/40g x 6.02 x 10^23/1 mole NaOH = __molecules NaOH

Now all that's left to do is to multiply across the top and divide by the bottom!

User Yuriy Tumakha
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