Calculate the mass of sodium hydroxide in 5.00 dm3 of a 0.125 mol dm-3 solution [NaOH = 40 g mol]
a
0.0156 g
b
0.625 g
c
1.00 g
d
25. 0 g
Explanation
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Discussions (5)

Salis005
2 years ago
Formula----> Conc in mol/dm³ = mass/molar mass × 1000/volume
MM of NaOH= 40 Volume= 5dm³=5000cm³
conc=0.125
0.125= m/40 × 1000/5000
m= 0.125×200
= 25g
peace 

Dan_richie
2 years ago
This answer is wrong cause it is in Mol dm-1 not it Mol so we were given the Molar concentration
Pls my school fix this

