You have a mixture of saltwater and  sand. Your task is to g…

You have a mixture of saltwater and  sand. Your task is to get each of the three components pure and separated.  You have learnt the following techniques in the lab. Which one(s) would you use to  effectively  complete this task. Use the letter corresponding to each technique in a sequence separated by ” ;”  to establish your sequence.  a.recrystallisation b. filteration c.drying  in the oven  d. acid-base extraction  e. gas chromatography f. thin layer chromatography g. simple distillation h. fractional distillation

  The given image shows the GC with % area of the first pea…

  The given image shows the GC with % area of the first peak at 55% and the second peak at 45% . Based on what you know about GC, you can  say that reaction was  [A] and given that the product mixture  isolated was 3.863 g, you can determine the actual amount of product using the GC to be [B]

Consider the following specifications for a program: A compu…

Consider the following specifications for a program: A computerized letter is to be sent to high school seniors telling them their graduation status. There are three inputs. The first input is a 10-digit identifying number (ID Number). The second input is the student’s grade point average (GPA) which is a real number. The third input is a real number indicating the balance of the student’s account. For students with 0