Question #bd620
1 Answer
Explanation:
Notice that the chemical formula of sodium chlorate tells you that
#1# mole of sodium atoms,#1 xx "Na"# #1# mole of chlorine atoms,#1 xx "Cl"# #3# moles of oxygen atoms,#3 xx "O"#
This means that if you take a sample of sodium chlorate that contains exactly
#overbrace("106.4412 g")^(color(blue)("1 mole of NaClO"_3)) = overbrace("22.99 g")^(color(blue)("1 mole of Na")) + overbrace("35.453 g")^(color(blue)("1 mole of Cl")) + overbrace(3 xx "15.9994 g")^(color(blue)("3 moles of O"))#
This tells you that for every
Therefore, you can say that your sample will have a mass of
#142 color(red)(cancel(color(black)("g Cl"))) * "106.4412 g NaClO"_3/(35.453color(red)(cancel(color(black)("g Cl")))) = color(darkgreen)(ul(color(black)("426 g NaClO"_3)))#
The answer is rounded to three sig figs.