Question

0.5 grams of a compound contains 0.2 grams of potassium the percentage weight of potassium in the compound is

Answer 1

Answer:

0.4

Explanation:

because mass of solvent/mass of solution×100

Answer 2

The mass percent of potassium in the compound is 40 %

Explanation:

To calculate the mass percentage of potassium in compound, we use the equation:

$\text{Mass percent of potassium}=\frac{\text{Mass of potassium}}{\text{Mass of compound}}\times 100$

Mass of compound = 0.5 g

Mass of potassium = 0.2 g

Putting values in above equation, we get:

$\text{Mass percent of potassium}=\frac{0.2g}{0.5g}\times 100=40\%$

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