Menthol Full Member 10+ Year Member Joined May 31, 2012 Messages 269 Reaction score 1 Points 4,591 Dental Student Sep 6, 2012 #1 Advertisement - Members don't see this ad how many grams of salt must be added to M grams of a n% salt solution to make it a p% solution? ans is M(p-n)/(100-p) any help is greatly appreciated!
Advertisement - Members don't see this ad how many grams of salt must be added to M grams of a n% salt solution to make it a p% solution? ans is M(p-n)/(100-p) any help is greatly appreciated!
N NhuPT Full Member 10+ Year Member Joined Apr 6, 2011 Messages 128 Reaction score 1 Points 4,551 Location Boston, MA Dental Student Sep 6, 2012 #2 this is a mixture problem: x = grams of salt salt will be 100% salty x grams of 100% + M grams of n% = total grams of p% 100x + Mn = (M+x) p 100x - xp = Mp - Mn x(100 - p) = M ( p-n) x = M (p-n) / (100 - p) Upvote 0 Downvote
this is a mixture problem: x = grams of salt salt will be 100% salty x grams of 100% + M grams of n% = total grams of p% 100x + Mn = (M+x) p 100x - xp = Mp - Mn x(100 - p) = M ( p-n) x = M (p-n) / (100 - p)
