Mole concept

Chemistry Level 2

Calculate the mass of one $^{238}\textrm{U}$ atom.

3.95 \times 10^{-22}\text{ g}

1.53 \times 10^{-22}\text{ g}

1.53 \times 10^{-23}\text{ g}

3.95 \times 10^{-23}\text{ g}

1 solution

Shakil Mustafa Shanto
Feb 27, 2015

To find the mass of one [X] atom= (atomic mass of X)/6.022 x 10^23 Example: mass of one U-238 tom = 238 g/ 6.022 x 10^23 =3.95 x 10^-22 g mass of one C atom = 12.01 g / 6.022 x 10^23 = 1.994 x 10^-23 g

238.05078826 $\times$ 1.67377 $\times 10^{-24} \approx 3.98 \times 10^{-22}~g$

Lu Chee Ket - 5 years, 3 months ago

Mole concept

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