Show calculations for finding these ratios to create dilutions given the concentrations.
Ans. # Part A: Dilution factor = Vol. of stock soln. / Final vol. of soln. made upto
#1. Final vol. of soln. made up to = Vol. of stock soln. / Dilution factor
= 1 mL / (1/2)
= 2 mL
Now,
Required Vol. of H2O = Final vol. of soln. made upto – Vol. of stock soln.
= 2.0 mL – 1.0 L = 1.0 mL
# Rest of the calculations are summarized in excels sheet.
# Part B: #1. Using C1V1 (stock soln.) = C2V2 (final soln)
V1 = (100 mM x 100 mL) / 2 M = (0.10 M x 100 mL) / 2 M = 5.0 mL
Now,
Dilution factor = 5.0 mL / 100 mL = 1 / 20
# Rest of the calculations are summarized in excel sheet.
Vol. of Stock HCl Final vol., mL Req. vol. Of H2O V2 (= V/ DF) mL (= V2-V1) Dilution, DF 1 to 2 1 to 10 mL, V1 1.00 2.00 0.50 0.30 0.80 2.00 20.00 2.50 1.20 9.60 1.00 18.00 2.00 0.90 8.80 1 to 4 1 to 12
Show calculations for finding these ratios to create dilutions given the concentrations. Part A How many...
dilutions
dilutions
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Need help please
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How do you find the initial concentration if you are only
given the initial volume and final volume? I have tried using the
V(i) x C(i) =V(f) x C(f) equation but it needs at least 3 figures
so I'm a bit lost right now.
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Calculate the mass of Fe2+ in the tablet by taking the
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from the given data sheet, can anyone please let me know how
to solve these post lab questions ?
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