9.2 TC LuD Questions secti De .4 18 ate the volume of 5 mM potassium chloride (K
ID: 1038331 • Letter: 9
Question
9.2 TC LuD Questions secti De .4 18 ate the volume of 5 mM potassium chloride (KCl) required to produce 50 mL of each of the star solutions s d KCi Record your results in Table 9.5. how a sample calculation for Solution 1 in the space this lab activity, you will measure the concentrations of HP and K for two solutions: saturated KHP alone, saturated KHP +KCI. You will measure the concentration of HP- usin flame photometry. 2 In and g titration, and the concentration of K using a Given the stoichiometry of Reaction 6, how do you think your mesurements of IHP 1 and IK-1 for the saturated KHP solution will compare? Explain. b How do you think your measurements of [HP l and Kel for the saturated KHP + KCI solution will compare? Expl . c Ho you think your measurements of [HP] for the saturated KHP solution and for the saturated KHP + solu will compare? Explain CHAPTER 9> Chemical EquilibiunmExplanation / Answer
As we know that,
initial concentration x initial volume = final concentration x final volume
(0.005 M) (X mL) = (0.0000075 M) (50 mL)
Hence,
X = 0.75 mL of 5mM KCl.
Target Concentration Volume Required (mL) 75 uM 0.75 150 uM 1.50 225 uM 2.25 300 uM 3.00 375 uM 3.75Related Questions
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