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Anonymous Poster

# Conversion

08/11/2009 10:39 AM

How can I convert 220mg/l HCl to % w/w HCl?

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#1

### Re: conversion

08/11/2009 10:49 AM

Hint: what is the weight of a litre of water at that temperature?

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#2

### Re: Conversion

08/11/2009 11:46 AM

1% = 10,000mg/l. Work it out.

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Anonymous Poster
#3
In reply to #2

### Re: Conversion

08/11/2009 2:59 PM

when i titrated manually 1ml HCl i got 3.6%. but when i titrated digital titrator i got 220 ppm? i wanted to know how to calculate w/w % HCL from 220 mg/l they should have the same percentage as 3.6%

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#4
In reply to #3

### Re: Conversion

08/12/2009 11:05 AM

3.6% is 36,000mg/l = 36,000ppm. Check the multiplier scale and the maximum limit of your digital meter. It's the only thing I can think of to explain an error of more than a hundredfold.

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