2Na+F2=2NaF
if 20.0 g of sodium is used what mass of sodium fluoride could be produced assuming that fluorine gas is unlimited
mols Na = grams/molar mass
Convert mols Na to mols NaF using the coefficients in the balanced equation.
g NaF = mols NaF x molar mass NaF.
To determine the mass of sodium fluoride that can be produced, we need to use the balanced chemical equation and the molar masses of the substances involved.
The balanced chemical equation is:
2Na + F2 → 2NaF
From the equation, we can see that 2 moles of sodium (2Na) react with 1 mole of fluorine gas (F2) to produce 2 moles of sodium fluoride (2NaF).
To calculate the mass of sodium fluoride produced, we need to follow these steps:
Step 1: Calculate the number of moles of sodium.
To calculate the number of moles of sodium, we divide the given mass of sodium (20.0 g) by the molar mass of sodium (22.99 g/mol).
Number of moles of sodium = Mass of sodium / Molar mass of sodium
Number of moles of sodium = 20.0 g / 22.99 g/mol
Step 2: Determine the limiting reagent.
The limiting reagent is the substance that will be completely consumed in the reaction and limits the amount of product formed. In this case, we assume that fluorine gas (F2) is unlimited, so sodium (Na) is the limiting reagent.
Since the balanced equation shows that 2 moles of sodium react with 1 mole of fluorine gas to produce 2 moles of sodium fluoride, we can conclude that 2 moles of sodium fluoride are produced for every 2 moles of sodium.
Step 3: Calculate the number of moles of sodium fluoride produced.
Since the number of moles of sodium and sodium fluoride are the same due to the balanced equation, we can use the moles of sodium calculated in step 1 as the moles of sodium fluoride produced.
Number of moles of sodium fluoride = Number of moles of sodium
Step 4: Calculate the mass of sodium fluoride produced.
To calculate the mass of sodium fluoride produced, we multiply the number of moles of sodium fluoride by its molar mass (41.99 g/mol).
Mass of sodium fluoride = Number of moles of sodium fluoride × Molar mass of sodium fluoride
By following these steps, we can determine the mass of sodium fluoride that could be produced using 20.0 g of sodium.