I know 1 cm3 of water = 1 mL, but it is true for everything else right? I need 15 g KNO3 but don't have a good scale, and I'm trying to find the volume of 15 g.
2007-09-02 17:39:20 · 3 answers · asked by dustdevil_333 2 in Science & Mathematics ➔ Chemistry
I know 1 cm3 of water = 1 mL, but it is true for everything else right? I need 15 g KNO3 but don't have a good scale, and I'm trying to find the volume of 15 g.
ALSO:
KNO3's density is 2.11 g/cm3 so I was wondering if 15 g KNO3 x (1 cm3/2.11 g) would equal 7.109 and I could use that many mL after I converted that.
2007-09-02 17:50:29 · update #1
1 cm3 = 1 ml only works for pure water with a density of 1 g /ml.
You probably realize that salt water is more dense than pure water. When you dissolve KNO3 in water, the density will change. Of course, if it is a dilute solution, it won't change by much, but it is going to be different in any case.
2007-09-02 17:44:27 · answer #1 · answered by reb1240 7 · 0⤊ 0⤋
7.109 ml
2007-09-03 09:48:00 · answer #2 · answered by dominique l 2 · 0⤊ 0⤋
hard
2007-09-03 00:42:16 · answer #3 · answered by Anonymous · 0⤊ 1⤋