What is the normality (eq/L) of the HCl titrant?
2020-08-12 8:10 am
In a titration standardization experiment for a HCl, a mass of 0.4897 g of borax (1 eq borax = 190.7 g) was titrated with 22.00 ml of HCl.
回答 (2)
2020-08-12 8:37 am
No. of eq of borax = (0.4897 g) / (190.7 g/eq) = 0.002568 eq
No. of eq of HCl = No. of eq of borax = 0.002568 eq
Normality of HCl = (0.002568 eq) / (22.00/1000 L) = 0.1167 eq/L
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OR:
(0.4897 g borax) (1 eq borax / 190.7 g borax) × (1 eq HCl / 1 eq borax) / (22.00/1000 L HCl)
= 0.1167 eq/L HCl
No. of eq of HCl = No. of eq of borax = 0.002568 eq
Normality of HCl = (0.002568 eq) / (22.00/1000 L) = 0.1167 eq/L
====
OR:
(0.4897 g borax) (1 eq borax / 190.7 g borax) × (1 eq HCl / 1 eq borax) / (22.00/1000 L HCl)
= 0.1167 eq/L HCl
2020-08-12 8:21 am
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I spend a lot of time on each problem, I just want to make sure it's for a worthwhile cause.
I spend a lot of time on each problem, I just want to make sure it's for a worthwhile cause.
收錄日期: 2021-04-18 18:36:53
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