Barium and nitrogen form two binary compounds containing 90.745% and 93.634% barium, respectively. determine the empirical formulas of these two compounds.

BaN, Ba₃N₂

Explanation:

In order to determine the empirical formula of a compound, we have to follow a series of steps.

Step 1: Determine the percent composition

Step 2: Divide each percentage by the atomic mass of each element

Step 3: Divide all numbers by the smallest one

Step 4: If necessary, multiply by a number so the coefficients are whole

Compound 1

Step 1

Ba: 90.745%

N: 100% - 90.745% = 9.255%

Step 2

Ba: 90.745/137.33 = 0.66078

N: 9.255/14.01 = 0.6606

Step 3

Ba: 0.66078/0.6606 ≈ 1

N: 0.6606/0.6606 = 1

The empirical formula is BaN.

Compound 2

Step 1

Ba: 93.634%

N: 100% - 93.634% = 6.366%

Step 2

Ba: 93.634/137.33 = 0.68182

N: 6.366/14.01 = 0.4544

Step 3

Ba: 0.68182/0.4544 = 1.5

N: 0.4544/0.4544 = 1

Step 4

Ba: 1.5 × 2 = 3

N: 1 × 2 = 2

The empirical formula is Ba₃N₂.

a rain shadow is a dry region of land on the side that is protected against the prevailing winds of a mountain range. the prevailing winds are the winds that occur most of the time in a particular place of the earth

prevailing winds carry air toward the mountain range. as the air rises up over a mountain range, the air cools, water vapor condenses, and clouds form. on this side of the mountains, called the windward side, precipitation falls in the form of  rain  or snow. this dry air produces a  rain shadow.