Recent content by rngz

  1. R

    Numerical methods for engineers

    where could i find the pseudocode for Newton raphson's method according to the MATLAB program??
  2. R

    Physical and analytical chemistry

    Homework Statement at 20 degree celsius, the solubility of a solid substance x in water is 42g/L. There are 3 solutions containing x kept at this temperature: S1 contains 5.1g/L,S2 contains 39g/L, and S3 contains 57g/L.so, how to make a saturated solution containing 45g x per litre overall for...
  3. R

    Physical and analytical chemistry

    at 20 degree celsius, the solubility of a solid substance x in water is 42g/L. There are 3 solutions containing x kept at this temperature: S1 5.1g/L, S2 contains 39g/L, and S3 contains 57g/L. if we want to make S1 saturated with x, is it possible that we can add an equal volume of S2 and S1...
  4. R

    Physical and analytical chemistry

    hmmm..not really.
  5. R

    Physical and analytical chemistry

    Homework Statement A rigid container,maintained at 50 degree celsius, is evacuated by a vacuum pump. After this, some liquid n-propanol is introduced into the container. part of the liquid will flash off inside the vacuum,but eventually the system will settle into equilibrium. what is the...