The question is incomplete, complete question is :
For the following chemical reaction, what mass of sodium chromate in grams will be needed to produce 5.17 mol of sodium nitrate?
[tex]2AgNO_3 + Na_2CrO_4\rightarrow Ag_2CrO_4 + 2NaNO_3[/tex]
Answer:
418.77 grams of sodium chromate is needed to produce 5.17 mol es of sodium nitrate.
Explanation:
[tex]2AgNO_3 + Na_2CrO_4\rightarrow Ag_2CrO_4 + 2NaNO_3[/tex]
According to reaction, 2 moles of sodium nitarte is obtained from 1 mole of sodium chromate .
Then 5.17 moles of sodium nitarte will be obtained from :
[tex]\frac{1}{2}\times 5.17 mol=2.585 mol[/tex] of sodium chromate
Mass of sodium chromate :
[tex]2.585\times 162 g/mol=418.77 g[/tex]
418.77 grams of sodium chromate is needed to produce 5.17 mol es of sodium nitrate.