Question

You have 55 grams of sodium. This would be equal to

moles of sodium.
• Use ROUNDED masses from the periodic table in
your calculations
●
Answer can ONLY include numbers, no units
Answer should be 3 digits (round to the hundredths
place)
Blank 1:

Answer 1

To find the number of moles from the mass of sodium, divide the given mass by the atomic mass of sodium (23 g/mol). For 55 grams of sodium, this yields approximately 2.39 moles when rounded to the hundredths place.

Step-by-step explanation:

To determine the number of moles of sodium when given the mass, you need to use the atomic mass of sodium for the conversion. The atomic mass of sodium (Na) rounded to whole numbers is typically 23 grams per mole. Therefore, to convert 55 grams of sodium to moles:

moles of sodium = 55 grams Na / (23 grams/mol)

This calculation gives you the result of approximately 2.39 moles of sodium. According to the instructions, this should be rounded to the hundredths place, giving a final answer of 2.39.