After performing an EDTA titration experiment on 256 mL of an unknown water sample you find...
After performing an EDTA titration experiment on 256 mL of an
unknown water sample you find that it takes 18.70 mL of a 9.50 mM
EDTA solution to sequester all Mg2+ and Ca2+
in solution. What is the concentration of [Mg2+ +
Ca2+] in the water in parts per million (ppm)
and in French degrees?
Homework Answers
according to the conservation of mass and atoms in a reaction, moles of reaction has to be balanced out.
moles of EDTA = moles of Mg2+ + Ca2+
volume of EDTA
concentration of
EDTA = volume of ionic solution concentration of
ionic solution
18.7mL 9.5mM = 256mL
concentration of
ionic solution
concentration of ionic solution = 0.694mM
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After performing an EDTA titration experiment on 256 mL of an
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how would I calculate my results from the first two data the first data is my...
how would I calculate my results from the first two data the
first data is my results and the second data I have to calculate
each of those with the information that I have on the first 3
trails I really really need help and i just dont understand thank
you.
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1. What is the amount in grams of EDTA you will need to measure out to prepare a 250 mL 0.01 M EDTA solution ? The molar mass of EDTA is 374.27 g/mol. 2. Titration Data from three water samples Water Volume of 0.01 Water Drops of MEDTA Moles Ca2+ sample indicator used to of concentration volume Calmagite reach Ca2+ in water (M) end point source 50 mL4 2 ml USFISA drinking water fountain USF BSF drinking water fountain 50...
Question 4 (1 point) An indirect EDTA titration was performed on a water sample to determine the sulfate content. First, the analyst measured the hardness of the water by directly titrating a 50 mL aliquot with 0.00515 M EDTA. If it took 14.40 mL of the EDTA solution to reach the endpoint, what is the hardness, or concentration (in M) of metals in the water sample?
how would I calculate my results from the first two data the
first data is my results and the second data I have to calculate
each of those with the information that I have on the first 3
trails I really really need help and i just dont understand thank
you.
1 concentration of EDTA solution 2 molar mass of CaCO3 0.0100 M 100.09 g/mol Trail 1 -Trail 2 Trail 3 12 12.01 11.99 5 Unknown analysis Part 1 (pH...
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