formulas

  1. N

    HCl dilution to non hazardous - formulas?

    Hi there, I am completely new to Chemistry and have to complete a paper with 10 questions as part of a safety degree but this is well outside my current knowledge as it has been 30 years since high school. I WOULD really appreciate some help in where to start on the questions below. Are there...
  2. J

    Formulas to calculate problems

    Can someone tell me the formulas to calculate these problems I have for my chemistry class? I can'y find a formula that uses just the given information to do the problems. Here they are: 1 Considering the reaction: 2KClO3 → 2KCl + 3O2 How...
  3. S

    Lost in my bio 113 (but actually chemistry) class?

    So I'm enrolled in a biotechnology summer institute at my community college this semester and the first day they tossed us right into something we weren't expecting - Chemistry. After all, the class we're enrolled in is Biology 113 and Bio 113 lab. So needless to say myself, and my entire class...
  4. S

    Lost in my bio 113 (but actually chemistry) class?

    Hi! So I'm enrolled in a biotechnology summer institute at my community college this semester and the first day they tossed us right into something we weren't expecting - Chemistry. After all, the class we're enrolled in is Biology 113 and Bio 113 lab. So needless to say, myself and my entire...
  5. M

    Writing Chemical Formulas

    We want to combine Calcium with a positive charge of 2 and Fluorine with a negative charge. If you have Ca with a charge of 2+ and Fluorine with a negative charge, both oxidation numbers don't add to zero. If you use two F negatives, you get a result of zero, but how and why would the formula be...
  6. C

    Salicylic acid formulas

    Salicylic acid consisting of the elements C, H and O. Burning 1.00 g of salicylic acid formed 2.33 g of carbon dioxide and 0.39 g of water. By titration with 1.00 g of salicylic acid used 72.4 mL of 0.100 M NaOH solution. Find the salicylic acid is empirical and molecular formulas. How to solve...