Divide the percentages by the RAM and then divide by the smallest value, this will give a ratio of the elements in the compound. N =14, O=16
Nitrogen : Oxygen
36.84/14 : 63.16/16
2.5 : 3.9
Divide both values by the lowest, and try to find whole number ratios:
2.5/2.5 : 3.9/2.5
1 : 1.5
Since the ratio of oxygen to nitrogen is 1.5 : 1, we have to double it so that it become 3:2
The empirical formula would be N₂O₃
<h3>
Answer:</h3>
D. Multiply the atomic mass of fluorine by 1.25
<h3>
Explanation:</h3>
<u>We are given;</u>
We need to identify the formula that shows the equivalent in mass
- We need to know the relationship between mass of an element, its atomic mass and the number of moles;
- That is; Number of moles = Mass of the element ÷ Atomic mass
Therefore;
Mass of the element = Number of moles × atomic mass
- Thus, in this case, to get mass we will multiply number of moles by atomic mass of Fluorine.
- That is, multiply atomic mass of fluorine by 1.25 moles .
<span>Mole ratios are important to stoichiometric calculations because they bridge the gap when we have to convert between the mass of one substance and the mass of another.</span>
Answer:
2.26 × 10²⁴ atoms of Fe
Explanation:
To calculate the amount of atoms of a substance using the amount of moles, we must multiply by Avagadro's number.
(3.75mol) × (6.02 × 10²³) = 2.26 × 10²⁴ atoms of Fe
The answer & explanation for this question is given in the attachment below.