QQuestionChemistry
QuestionChemistry
What is the molar mass of phosphorus (P)?
A. 15.0 g/mol
B. 30.97 g/mol
C. 60.2 g/mol
D. 207.2 g/mol
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Answer
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Step 1:I'll solve this problem step by step, following the specified LaTeX formatting guidelines:
Step 2:: Identify the Element
The problem asks for the molar mass of phosphorus (P), which is an element on the periodic table.
Step 3:: Locate the Atomic Mass
To find the molar mass, I'll look at the atomic mass of phosphorus on the periodic table.
Step 4:: Determine the Molar Mass
The atomic mass of phosphorus is $$30.97 \text{ g/mol}
Step 5:: Verify the Calculation
- Atomic mass: $$30.97 \text{ g/mol}
Let's confirm this by checking the atomic number and mass number: - Atomic number of phosphorus: 15
Step 6:: Select the Correct Answer
30.97 \text{ g/mol}$$ corresponds to option B.
Comparing the calculated value to the given options, we can see that:
Final Answer
Key Insights: - Molar mass is numerically equal to the atomic mass found on the periodic table - For a single element, molar mass is expressed in grams per mole (g/mol) - Always check the periodic table for precise atomic masses
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