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Standardization of Naoh and Hcl

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Standardization of Naoh and Hcl
Formula: for NaoH
N NaoH = grm KHP / ml NaoH x KHp /1000ml

Formula: for HCL
(NV) HCL = (NV) NaoH or
N HCL V HCL = N NaOH V NaoH
N HCL = VNAOH (NNaoH) / VHCL

(for more info page 62-63 of the photocopy)
KHP = Potassium hydrogen phthalate = KHC8H4O4 = Mw - 204.23

Trial 1:
NNaoH = 1grm / 20.6 x 204.23 /1000 = 1grm / 4.21 = 0.24 normal
NHCL = 20.6 (0.24) / 39.5 = 4.94 / 39.5 = 0.125 or 0.13

Trial 2:
NNaoH = 1grm / 20.8 x 204.23 /1000 = 1grm / 4.247 or 4.25 = 0.235 or 0.24
NHCL = 20.8 (0.24) / 35.2 =4.99 or 5 / 35.2 = 0.14

AVERAGE:
NNaoH = 1gram / 20.7 x 204.23 / 1000 = 1 grm / 4.23 = 0.236 or 0.24
NHCL = 20.7 (0.24) / 37.35 = 4.968 or 4.97 or 5 / 37.35 = 0.13

STANDARDIZATION OF HCL and NaOH | | | | I | II | AVERAGE | Weight of bottle + KHP | 113.6105 grams | 113.6105 grams | 113.6105 grams | Weight of Bottle (empty) | 112.6105 grams | 112.6105 grams | 112.6105 grams | Weight of KHP | 1 grm | 1 grm | 1 grm | | | | | | Final Volume of NaOH | 20.6 | 20.8 | 20.7 | Initial Volume of NaOH | 0 | 0 | 0 | Volume of NaOh Used | 20.6 | 20.8 | 20.7 | | | | | | Final Volume of HCL | 39.5 | 35.2 | 37.35 | Initial Volume of HCL | 0 | 0 | 0 | Volume of HCl Used | 39.5 | 35.2 | 37.35 | | | | | | N of NaOH | 0.24 | 0.24 | 0.24 | N of HCL | 0.13 | 0.14 | 0.13
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