Question

what is the molar mass of oxygen?
remember to round to the hundredths place from the periodic table.
16.00 g/mol
32.07 g/mol
6.00 g/mol
8.00 g/mol

Explanation:

Step1: Determine the form of oxygen

Oxygen in its elemental form is \(O_2\).

Step2: Find molar mass of single oxygen atom

From the periodic table, the molar mass of a single oxygen (\(O\)) atom is \(16.00\space g/mol\).

Step3: Calculate molar mass of \(O_2\)

Since \(O_2\) has 2 oxygen atoms, molar mass \(M = 2\times16.00\space g/mol=32.00\space g/mol\). But if we consider the more accurate value from the periodic table (rounding to hundredths), oxygen's molar mass (for \(O_2\)) is \(32.00\space g/mol\approx32.00\space g/mol\) (closest to the options given when considering standard molar mass values. If we assume the problem is about atomic oxygen (which is less common in this context but if we go by the options and the instruction to use periodic - table values for rounding to hundredths, atomic oxygen (\(O\)) has a molar mass of \(16.00\space g/mol\))

Answer:

16.00 g/mol