Acompound is found to contain 63.65% nitrogen and 36.35% oxygen by mass. what is the empirical formula for this compound

You will change the percent to gram

N = 63.65 % => 63.65 g

O = 36.35 % => 36.35 g

The formula for this question is mole = mass / Molar mass

  N = 63.65 g / 14.01 g/mol = 4.54 mol

  O = 36.35 g / 16.00 g/mol = 2.27 mol

Take the smallest number in 2 element and divide them.

  N = 4.54 / 2.27 = 2

  O = 2.27 / 2.27 = 1

The empirical formula is N2O

Hope this help!

plants need sunlight, water, and carbon dioxide to make food. plants use the raw materials of water, nutrients they absorb from soil, and carbon dioxide to make sugars the plant can use. energy from the sun and chlorophyll are also needed.