Question

Calculate the number of moles in 50g of na.​

Answer 1

Answer :

Given Mass = 50g

Molar mass = 22.98 g

We know that, to find the number of moles, we divide given mass by the molar mass.

No of moles = Given Mass / molar mass

No of moles = 50 / 22.98

No of moles = 2.17 moles

Hence, the number of moles is 2.17 moles.

Answer 2

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Na has an atomic mass of 23 and Cl is 35.5. So the Mr(NaCl)= 23 + 35.5 = 58.5. Putting all of this into our moles equation gives us the answer: moles= 50/58.5 = 0.855 moles (3sf)

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