Question

How many grams are in 11.9 moles of chromium?

Answer 1

1mole        ----- 52g Cr
11,9moles  --- x

x = 11,9*52/1 = 618,8[g]

Answer 2

Explanation:

It is known that one mole of chromium or molar mass of chromium is 51.99 g/mol.

It is given that number of moles is 11.9 moles.

Therefore, calculate the mass of chromium in grams as follows.

     No. of moles = $\frac{mass in grams}{Molar mass}$

    mass in grams = No. of moles × Molar mass

                             = 11.9 moles × 51.99 g/mol

                             = 618.68 g

Thus, we can conclude that there are 618.68 g in 11.9 moles of chromium.