vi If
loog
of solution contains is g of solut then mass percent of
the solution is
V
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Answer:
100g of conc. HCl has 37g of HCl
density is 1.2 g/ml
volume = 100g / 1.2(g/ml) = 83.3 ml = 0.0833 L
n = m/MW n = 37g /34.5(g/mol) = 1.07 moles
[HCl] = 1.07 moles / 0.0833 L = 12.8 M!
V1 x C1 = V2 x C2
12.8M x Xml = 0.025M x 100ml
X = 0.025M x 100ml / 12.8M
X = 0.2 ml of conc.HCl bring to 100 ml with ddH2O
Hope it helps! Good luck!
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