What is the empirical formula a for a compound that is 15.3% magnesium, 44.5% chlorine, and 40.2 % oxygen

Explanation:

When calculating an empirical formula from percentages, assume you have a 100g sample. This allows you to convert the percentages directly to grams, because X % of 100g is X grams.

So:

15.3 % = 15.3g Mg, 44.5% = 44.5g Cl, 40.2% = 40.2g O

The next step is to divide each mass by their molar mass to convert your grams to moles.

15.3/24.3 = .630 mol

44.5/35.5 = 1.25 mol

40.2/16.0 = 2.5 mol

Then you will divide all of your mol values by the SMALLEST number of moles. This gives you whole numbers that are the mole ratio (subscripts) of the empirical formula.

.630 mol/.630mol = 1

1.25 mol/.630mol = 2

2.5 mol/.630mol = 4

So the empirical formula is

the answer is learned

answer: e.   sour taste

explanation: acids are those substances which dissociates in water to give ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. acids are sour in taste. example: hcl

bases are those substances which dissociates in water to give ions or accepts ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. bases are bitter in taste. bases are slippery in nature.