1 Select the Triggers tab, and then select New. 2  Set your time and frequency, and then select OK.  Open Windows Defender by clicking the Start button. In the search box, type Defender and then, in the list of results, click Windows Defender.
A. An empirical formula represent a molecule. B. an empirical formula gives the smallest whole number ratio of each type of atom in a MOLECULE. C. The molecular formula can be the same as the empirical formula in some situations. D. An empirical formula must be multiplied by an integer to obtain the molecular formula.
From there, you calculate the ratios of different types of atoms in the compound. You express these ratios as the empirical formula. An empirical formula represents the lowest whole-number ratio of elements in a compound. Hereâs how to find an empirical formula when given percent composition: Assume that you have 100 g of the unknown compound.