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What is the mass of 3.8 moles of Na?


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Answered 2016-02-25 08:14:39

Sodium is a metal element. Mass of 3.8 moles is 87.4g.

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Answered 2015-07-12 17:46:56

This mass is 87,36 g.

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For this you need the atomic mass of Na. Take the number of moles and multiply it by the atomic mass. Divide by one mole for units to cancel.2.1 moles Na × (23.0 grams) = 48.3 grams Na


1 mole of sodium is 23 g, moles = mass/mole mass 35 g Na = 35/23 moles, = 1.5217 moles.


Molar Mass NaCl is 58.5g, 39.3% Na (5.90g), Molar Mass Na is 23.0g, 5.90/23.0 = 0.256 moles


Mass of 2 moles of Na = 2 x atomic mass of Na = 2 x 23.0 = 46.0g


1 mole Na = 22.989770g 10 moles Na = 10 x 22.989770g = 229.89770g


For this you need the atomic mass of Na. Take the number of grams and divide it by the atomic mass. Multiply by one mole for units to cancel.11.5 grams Na / (23.0 grams) = .500 moles Na


1.50 moles Na x 22.9 g/mole = 34.4 g (3 significant figures)


#moles = mass/molar mass mass = #moles*molar mass mass = .10 moles*(atomic weight of na+atomic weight of N+3(atomic weight of oxygen)


For this you need the atomic mass of Na. Take the number of grams and divide it by the atomic mass. Multiply by one mole for units to cancel.17.5 grams Na / (23.0 grams) = .761 moles Na


Molar mass Na = 22.99g/mol0.15 mol Na = 0.15*22.99 = 3.45g


The atomic mass of sodium, Na is 23.0. Amount of Na = 4/23.0 = 0.174mol


The chemical symbol for sodium is Na. Amount of Na = mass of sample/molecular mass = 350/23.0 = 15.2mol


Atomic mass of Na is 23.0. This means that the mass of 1 mole of sodium is 23.0g. Mass of 4.5mol of Na = 4.5 x 23.0 = 103.5g


The atomic mass of sodium, Na is 23.0 Amount of Na = 454/23 = 19.7mol


ans is 4.032 by using formulas plz of mole , NA , nd mass of atoms plz solve nd submit


mol = mass/Mr If the Mr and number of moles of a substance is known then the mass can be calculated. example:- if we have 1 mole of Na, how many grams do we have? mass = mol x Mr mass = 1 x 23 mass = 23g


1 mole Na = 22.989770g 9 mol Na x 22.989770g/mol = 206.9g Na = 200g Na rounded to one significant figure


The molar mass of an element corresponds to the atomic mass of the element (found on the periodic table). The atomic mass of Sodium-Na is 22.990 g, which is also the molar mass of Na. So for 1 mole of Na, there are 22.990 grams of Na. If we had 3 moles of Na, then we would simply multiply the molar mass by 3.


.391 moles of Na in NaCL


how many moles are in 5.6 grams of Na?


molar mass of sodium = 23 number of mols = mass/ molar mass therefore 46g of Na = 2 mol


The atomic mass of sodium, Na is 23.0 Amount of sodium = mass of sample / atomic mass = 120/23.0 = 5.22mol


Molarity = mols of solute/L of solution .1004 = mols of NaOH/.01864 moles of NaOH = .00187 Moles of NaOH = Moles of KHP Now, multiply .00187 by the molar mass of KHP .00187*204.22 = .38 g KHP


To convert mass to moles, you use the equation n= m/M n is moles, m is mass, M= Molar mass, which is the mass of the atoms in the formula or substance.


Atomic mass of Na: 23.0 grams1.50 moles × (6.02 × 1023 atoms) = 9.03 × 1023atoms



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