Question

present in 300 mL of 12.0 M solution?
Calculate the mass percent of benzene (CH) and carbon tetrachloride (CCI) if22 g ofbenzene is dissolved
ercially as 12M solution. How many moles and how many grams of HCl are
3-
in 122 gof carbon tetrachloride
Calculate the mass of urea​

Answer 1

In general Mass % of X=

$[Mass of X \div Mass of total mixture]×100$

Mass of the total mixture= 22+122=144g

Mass % of benzene=(22/144)×100=15.28%

Mass % of CCl4=(122/144)×100=84.72%