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Nina [5.8K]
2 years ago
9

What would be the mass of 4.56x10²³ water molecules

Chemistry
1 answer:
kifflom [539]2 years ago
3 0
Every time you see molecules, atoms, & particles think of avagadros #. (6.022 x 10^23)

Answer: 13.6 grams of H2O

Solution: (4.56x10^23) x (1 mol H2O/6.022x10^23) x (18 grams H2O/1 mol H2O) = 13.6 grams of H2O

Using dimensional analysis above makes these types of problems easy.
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0.17 lb

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78 g * (1 lb/454 g)=0.17 lb

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Use the Debye-Huckel Equation to calculate the activity coefficient of Ce4+ at μ = 0.070 M.
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How many atoms are in 0.750 moles of zinc?
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