Questions: Which of the following is the chemical formula for potassium nitrate? Select one: a. KNO3 b. KNO2 c. PNO2 d. PNO3

Which of the following is the chemical formula for potassium nitrate? Select one: a. KNO3 b. KNO2 c. PNO2 d. PNO3
Transcript text: Which of the following is the chemical formula for potassium nitrate? Select one: a. $\mathrm{KNO}_{3}$ b. $\mathrm{KNO}_{2}$ C. $\mathrm{PNO}_{2}$ d. $\mathrm{PNO}_{3}$
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Solution

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Solution Steps

Step 1: Identify the Chemical Formula for Potassium Nitrate

Potassium nitrate is a chemical compound composed of potassium (K), nitrogen (N), and oxygen (O). It is commonly used in fertilizers, food preservation, and as a component in gunpowder.

Step 2: Recall the Chemical Formula

The chemical formula for potassium nitrate is well-known in chemistry as \(\mathrm{KNO}_{3}\). This formula indicates that the compound consists of one potassium atom, one nitrogen atom, and three oxygen atoms.

Step 3: Match the Formula with the Options

Now, we need to match the known chemical formula \(\mathrm{KNO}_{3}\) with the given options:

  • a. \(\mathrm{KNO}_{3}\)
  • b. \(\mathrm{KNO}_{2}\)
  • c. \(\mathrm{PNO}_{2}\)
  • d. \(\mathrm{PNO}_{3}\)

The correct match is option a, \(\mathrm{KNO}_{3}\).

Final Answer

\(\boxed{\text{a. } \mathrm{KNO}_{3}}\)

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