what is the molar mass of molybdenum, atomic number 42? choose 1 answer: a 42 g/mol b 95.95 g/mol c…

what is the molar mass of molybdenum, atomic number 42? choose 1 answer: a 42 g/mol b 95.95 g/mol c 6.022×10²³ g/mol

what is the molar mass of molybdenum, atomic number 42? choose 1 answer: a 42 g/mol b 95.95 g/mol c 6.022×10²³ g/mol

Answer

Explanation:

Step1: Recall molar - mass concept

The molar mass of an element (in g/mol) is numerically equal to its atomic mass. The atomic number is not the molar mass. The molar mass of molybdenum (Mo) can be found on the periodic table.

Step2: Look up molar mass

From the periodic table, the molar mass of molybdenum (atomic number 42) is approximately 95.95 g/mol. Avogadro's number ($6.022\times 10^{23}$) is related to the number of particles in a mole, not the molar mass of molybdenum.

Answer:

B. 95.95 g/mol