Why internal standard solutions are better and why we get a more uncertain result with other solutions. How we made a internal standard solution?
Q: A solution consists of 0.020 mol.kg-1 KCl(aq) and 0.035 mol.kg-1 Ca(NO3)2(aq). For Cd(NO3)2(aq),…
A: Given The solution consists of 0.020 mol.kg-1 KCl(aq) and 0.035 mol.kg-1 Ca(NO3)2(aq) We have to…
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Q: -why HCI is not primary standard material ? -It is usually impossible to obtain NaOH of sufficient…
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Q: b) In this experiment potassium hydrogen phthalate solution is used as a secondary standard solution…
A: Primary and secondary standard are used for titration purpose only .
Q: Calculate the ionic strength of a solution that is 0.15 mol kg-1 in KCI(aq) and 0.30 mol kg-1 in…
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Q: What do you understand by Isocratic and Gradient elution?
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Q: the following data were the results from six replicate determinations of iron in aqueous samples of…
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Q: The resistance of a conductivity cell containing a 0.01 mol KCl solution cm-3 is 150 Ω and the…
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Q: If the unknown well water samples were analyzed at 550 nm but the external standard solutions were…
A: Solution -
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Q: Calculate the ionic strength of a solution that is 0.10 mol kg−1 in KCl(aq) and 0.20 mol kg−1 in…
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Q: Why we have to use the KHP as a primary standard solution? A. Pure crystals B. Mono protic…
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Q: Calculate the ionic strength of a solution that is 0.15 mol kg-1 in KCI(aq) and 0.30 mol kg-1 in…
A: Given: Molality of KCl = 0.15 mol kg-1 Molality of CuSO4 = 0.30 mol kg-1
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Why internal standard solutions are better and why we get a more uncertain result with other solutions. How we made a internal standard solution?
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- K2SO4 in order to prepare a 1 N of the solution. • What are the specifications of primary standard solution?why is it better to generate a calibration plot than to perform a determination using a single measurements for a standard solution?What does the selectivity coefficient tell us? Is it better to have a large or a small selectivity coefficient?
- Each solution began with a different [Ag+]0. Should the Ksp value be the same for each solution? Explain?What are the applications of re-crystallization in gravimetric analysis? answer at your own words and answer should be to the point, not any irrelevant words00 mL of a diprotic acid primary standard solution was accurately prepared to a concentration of 0.1431 M. Three samples of this primary standard solution were used as samples in a titration to standardize an aqueous solution of sodium hydroxide, NaOH, which would be used as a titrant. Using the following table of data for the titration of the primary standard acid with NaOH, calculate the average concentration of NaOH. Trial # Volume of primary standard Initial titrant volume Final titrant volume 1 10.00 mL 8.21 mL 27.22 mL 2 10.00 mL 27.22 mL 46.23 mL 3 10.00 mL 30.28 mL 49.29 mL 0.1506 M 0.0753 M 0.0376 M 0.1431 M 0.0526 M
- the following data were the results from six replicate determinations of iron in aqueous samples of a standard solution containing 20ppm iron (III) 19.8, 19.6, 19.5 ,19.4, 20.1, 20.3 DETERMINE THE MEDIAN FOR THE DATACalculate the ionic strength of a solution that is 0.15 mol kg-1 in KCI(aq) and 0.30 mol kg-1 in CuSO4(aq).Is standardization against primary standard required for electrogravimetry using two electrode configuration?
- Calculate the Ksp for a saturated calcium phosphate solution with 4.35x10-7 M calcium ions and 2.90x10-7 M phosphate ions.0.5M HA sample with 0.2 dissociation; It is placed in a conductivity cell with a length of 0.9 cm and an area of 2 cm2 and its conductivity is read as 300 mS. For this purpose;a) Equivalent conductivity of the electrolyte ?b) Boundary equivalent conductivity ?c) Decomposition constant ?Which statement is correct? A) An internal standard is a different substance from the analyte. B) An internal standard is the same substance as the analyte. C) An internal standard is a same substance as the analyte matrix.