which conversion factor is correct to change from grams to moles in the problem below?\n27.4 g co\n58.93 g…

which conversion factor is correct to change from grams to moles in the problem below?\n27.4 g co\n58.93 g co / 1 mol co\n1 mol co / 58.93 g co

which conversion factor is correct to change from grams to moles in the problem below?\n27.4 g co\n58.93 g co / 1 mol co\n1 mol co / 58.93 g co

Answer

Explanation:

Step1: Recall mole - mass conversion

To convert from grams to moles, we use the molar mass of the substance. The molar mass of cobalt (Co) is 58.93 g/mol. The conversion factor to go from grams to moles has moles in the numerator and grams in the denominator.

Step2: Identify the correct factor

The correct conversion factor to change from grams of Co to moles of Co is $\frac{1\ mol\ Co}{58.93\ g\ Co}$ because when we multiply the mass in grams by this factor, the grams unit cancels out and we are left with moles.

Answer:

$\frac{1\ mol\ Co}{58.93\ g\ Co}$