Question

How do you convert 0.505 moles of Ti into grams?

Answer 1

Hint: The conversion of the number of moles of compound into grams is done by using the general formula of where number of moles is equal to mass of the atom divided by the atomic weight. The mass is calculated in terms of grams.

Complete step by step answer:
It is given that the moles of Ti is 0.505 moles. Ti is the symbol used for the chemical element titanium. The atomic weight of the titanium can be obtained from the periodic table which is 47.867.
The conversion factor used to convert the moles into grams is the number of moles multiplied by the atomic weight. As the atomic weight is given in terms of g/mol and the number of moles is expressed in terms of moles, the common mol term will be cancelled out and the mass will be obtained in terms of grams.
The formula used to convert the number of moles into grams is shown below.
$m = n \times A$
Where,
m is the mass in grams
n is the number of moles in mol.
A is the atomic weight in gram per mol
To calculate the mass of titanium, substitute the values in the above equation.
$ \Rightarrow m = 0.505 \times 47.867$
$ \Rightarrow m = 24.1728$
As the calculated value is not accurate we should round off the value to lowest significant figures.
So, the mass will be $24.1728 \approx 24.2g$.

Therefore, the mass of Ti is 24.2 g.

Note: Make sure to round off the significant figures. Here the Titanium is an atom, if any molecule is given, then the formula will be the number of moles equal to mass by the molecular weight. The atomic weight is the sum average of the isotopes of the atoms.