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Since the formula shows two sodium atoms in each formula unit of sodium sulfate and this compound normally completely ionizes in water solution, the number of sodium ions will be twice the number of moles of the salt; in this instance, 1.0 moles of sodium ions.
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How many MOLES of sodium nitrate are present in 2.85 grams of this compound ?
the formula does not show how many moles are in a compound, but it tells how many atoms of an element that are in the compound...
Sodium Sulfate is Na2SO4 and the molecular weight is 142. So 0.15 moles would have a mass of 0.15 x142 = 21.3g.
Since the formula shows two sodium atoms in each formula unit of sodium sulfate and this compound normally completely ionizes in water solution, the number of sodium ions will be twice the number of moles of the salt; in this instance, 1.0 moles of sodium ions.
2
How many MOLES of sodium nitrate are present in 2.85 grams of this compound ?
1,125 moles of sodium sulfate contain 6,774908464125.10e23 molecules.
the formula does not show how many moles are in a compound, but it tells how many atoms of an element that are in the compound...
Sodium Sulfate is Na2SO4 and the molecular weight is 142. So 0.15 moles would have a mass of 0.15 x142 = 21.3g.
The answer is approx. 2 moles (for anhydrous sodium sulfate).
Table salt is mainly sodium chloride - a compound with equal parts (in atoms or moles) of sodium and chlorine.
The answer is 10 moles water.
The answer is 10 moles water.
10 moles of water are released.
79,9 g NaCl is equivalent to 1,367 moles.The formula mass of the compound sodium chloride, NaCl is 23.0 + 35.5 = 58.5Amount of NaCl = 79.9/58.5 = 1.37molThere are 1.37 moles of sodium chloride in a 79.9 gram pure sample of the compound.