Question

How many moles are present in 107g of sodium

Answer 1

Explanation:

Na mol.mass = 23.

mass / molmass = moles

107g / 23 g/mol = 4.65moles of sodium.

Answer 2

Given: Given mass of sodium = 107 grams.

To Find = number of moles of sodium

Step-by-step-Explanation:

• Given mass of the sodium is 107 grams
• Any substance with a certain mass which comprises of the same or equal amount of basic units can be termed as a mole.
• As we know that the molar mass of the sodium is 23 grams per mole.
• The number of moles can be calculating by dividing the given mass of the sodium with the molar mass of the sodium.
• The number of moles can be calculated by using the following formula:

• number of moles = $\frac{Given mass of a substance}{Molar mass of a substance}$
• So, the number of moles = $\frac{107}{23} = 4.65$ moles of sodium.

Hence, the number of moles present is 4.65 moles of sodium.