Look at a graph something like
http://www.mychemistrytutor.com/sites/de…
At 71° it looks like about 132g of KNO3 will dissolve in 100g of water.
After that just set up a proportion:
X / 136 = 132 / 100.
http://www.mychemistrytutor.com/sites/de…
At 71° it looks like about 132g of KNO3 will dissolve in 100g of water.
After that just set up a proportion:
X / 136 = 132 / 100.