Respuesta :

Na₂O has a molecular mass of (2 x 23.0) + 16 = 62. One mole of any substance is its molecular mass in grams, so if 1 mole of Na₂O = 62.0-g, then 5 moles would be 310-g ...(62.0g/mol x 5-mol) = 310-g Na₂O
abidemiokin

The number of grams that are in 3.7 moles of Na₂O is 229.4grams

The formula for calculating the number of moles is expressed as:

Number of moles = Mass/molar mass

Given the following

Number of moles = 3.7moles

Get the molar mass of Na₂O

The mass number of Sodium Na = 23

Mass of number of Oxygen is 16

Mass number of Na₂O = 2(23) + 16

Mass number of Na₂O = 46 + 16

Mass number of Na₂O = 62g/mol

Get the Mass of Na₂O

Mass = number of miles * molar mass

Mass of Na₂O = 3.7 * 62

Mass of  Na₂O = 229.4grams

Hence the number of grams that are in 3.7 moles of Na₂O is 229.4grams.

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