Question

find the number of moles in 1.51 × 10 power 23 molecules of water​

Answer 1

Hi there,

• n = number of moles

• Nu = number of molecules

• NA = avogadro's no = 6.02×10^23

☆ n= Nu÷ NA

n= 1.51×10^23÷6.02×10^23= 0.25 mol

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