Calculate the percentage by mass

  1. I need help with these questions1. Calculate the percentage by mass of potassium in potassium sulfate K2 SO4 2. calculate the
    1. answers icon 2 answers
    2. Victoria asked by Victoria
    3. views icon 934 views
  2. Using the mass of the copper in the crucible (first mass in the table), and the mass of the crucible with compound (last mass
    1. answers icon 4 answers
    2. Taco asked by Taco
    3. views icon 513 views
  3. Calculate the theoretical mass percent of oxygen in KClO3.here is the my mass percentage of 02 25gKCl03/30.0gKCl03=0.61%02.
    1. answers icon 2 answers
    2. kelly asked by kelly
    3. views icon 4,680 views
  4. Calculate the mass of urea required in making 2.5kg of 0.25 molar aqueous solution? which formula should I use mass by volume
    1. answers icon 1 answer
    2. Gash asked by Gash
    3. views icon 988 views
  5. A mixture of kclo3 and kcl mass 2.1g undergoes decomposition and residue of mass 1.62g remained calculate the mass percentage of
    1. answers icon 1 answer
    2. Mathew asked by Mathew
    3. views icon 300 views
  6. Calculate The Percentage Of Mass Of Water In Na2 Co3, 1'0 H2o
    1. answers icon 1 answer
    2. Osaherumwen asked by Osaherumwen
    3. views icon 505 views
  7. Calculate the percentage by mass for Carbon in C2H2
    1. answers icon 1 answer
    2. Anonymous asked by Anonymous
    3. views icon 386 views
  8. Calculate the percentage by mass for Carbon in C2H2
    1. answers icon 1 answer
    2. Anonymous asked by Anonymous
    3. views icon 2,263 views
  9. Calculate the percentage by mass of silicon tetrachloride
    1. answers icon 1 answer
    2. Evans Agyei Boamah asked by Evans Agyei Boamah
    3. views icon 127 views
  10. Calculate percentage by mass lead in 1 mole of Pb(NO3)2
    1. answers icon 1 answer
    2. views icon 31 views