calculate the mass, in grams, of 532.0 atoms of cadmium, cd. one mol of cd has a mass of 112.41 g.

Explanation:

Step1: Convert atoms to moles

Use Avogadro's number ($N_A = 6.022\times 10^{23}$ atoms/mol). The number of moles $n$ of Cd is $n=\frac{532.0}{6.022\times 10^{23}}$ mol.

Step2: Calculate the mass

The mass $m$ of Cd is $m = n\times$ molar - mass. Substitute $n=\frac{532.0}{6.022\times 10^{23}}$ mol and molar - mass = 112.41 g/mol into the formula. So $m=\frac{532.0}{6.022\times 10^{23}}\times112.41$ g. $m=\frac{532.0\times112.41}{6.022\times 10^{23}}$ g $m=\frac{59702.12}{6.022\times 10^{23}}$ g $\approx9.914\times 10^{-20}$ g

Answer:

$9.914\times 10^{-20}$ g