M means moles
how do u figure out this question
2007-09-08 12:38:34 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
YOu use the equation n=m/ M where n equals # of moles, M is molar mass (Na mass + Cl mass) m is what you solve for
2007-09-08 12:43:50 · answer #1 · answered by Elayna D 1 · 0⤊ 0⤋
Atomic weights: Na=23 Cl=35.5 NaCl=58.5
Let the solution be called S.
250mLS x 0.100molNaCl/1000mLS X 58.5gNaCl/1molNaCl = 1.46g NaCl
2007-09-08 19:45:59 · answer #2 · answered by steve_geo1 7 · 0⤊ 0⤋
amount of substance in this solution:
n=cV
c=0.100 M, V=0.250 L
=0.1*0.250
=0.0250 mol
for the mass of 0.0250 mol NaCl,
m=nM
=0.0250*(22.99+35.45)
=1.46 g
2007-09-08 19:44:21 · answer #3 · answered by Anonymous · 0⤊ 0⤋
1.4625 GRAM SOLUTE
2007-09-09 03:23:32 · answer #4 · answered by sanjay k 1 · 0⤊ 0⤋