Calculate number of moles in the given number of atoms.
Titanium is corrosion resistant metal that is used in rockets, aircrafts, and jet engines. Calculate the number of moles of this metal in a sample containing 3.011 x 1023 Ti atoms.
Difficulty: Hard
Problem solving strategy:
Remember that 1 mole of an element contains 6.022x 1023 atoms
Solution:
6.022 x 1023 Ti atoms = 1 mole of Ti
1 Ti atom = $\frac{1}{6.022 \times 10^{23}}$ moles of Ti
3.011 x 1023 Ti atoms = $\frac{1}{6.022 \times 10^{23}} \times 3.011 \times 10^{23}$ moles of Ti
3.011 x 1023 Ti atoms = 0.5 moles of Ti
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