mL1 x M1 = mL2 x M2
mL1 x 0.190 = 250.0 x 0.0140
Solve for mL1 = ?
What volume (in mL) of 0.190 M sodium thiosulphate, Na2S2O3, solution is needed to prepare 250.0 mL of 0.0140 M sodium thiosulphate solution?
2 answers
.2500 L * 0.0140 mol/L = ? mol
? mol / 0.190 mol/L = ? L
? mol / 0.190 mol/L = ? L