Let us denote: a is the number of potassium atoms, b is the number of sulfur atoms, c is the number of oxygen atoms, m is the molecular weight of the compound.
The relative atomic mass of potassium is 39, sulfur is 32, oxygen is 16.
Let’s compose the following expressions:
0.448 = 39 * a / m;
0.184 = 32 * b / m;
0.368 = 16 * c / m;
Let us express the molecular weight from three expressions:
m = 39 * a / 0.448 = 87a;
m = 32 * b / 0.184 = 174b;
m = 16 * s / 0.368 = 43.5 s;
Approximate values of unknown numbers: a = 2, b = 1, c = 4. The formula of the substance is K2SO4.
Answer: The simple formula for the salt is K2SO4 (potassium sulfate).
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