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Sketch a graph for the generic first-order reaction A→ B that has concentration of A on the vertical axis and time on the horizontal axis.
(a) Is this graph linear? Explain.
(b) Indicate on your graph the half-life for the reaction.
What is the hydroxide-ion concentration of a 0.190 M oxalic acid, H2C2O4, solution? For oxalic acid, Ka1 = 5.6x10-2 and Ka2 = 5.1x10-5.
Why does kininogen bind to glycosaminoglycans easily and why is the binding of kininogen less sensitive to physiological pH changes - How is the binding of HPRG to heparin dependent on pH? Give structural reasons for the binding dependence.
Stoichiometry limiting reagent: find the reagent in excess. then calculate the mass or volume of the products formed.
Which of the following is a neutralization reaction?
A compound has a molar mass of 110.1g/mol and a composition of 65.45%C, 5.45% H, and 29.09% O. Calculate the molecular formula of this compound.
Concentrated sodium hydroxide (NaOH) is 19.4 M, has a density of 1.54 g/mL, and is a strong electrolyte. What is the molality of 19.4 M NaOH? Assume NaOH(aq) dissociates completely to produce two moles of ions per mol NaOH.
What is a catalyst? What is the difference between a homogeneous and a heterogeneous catalyst? Do catalysts affect the overall enthalpy change for a reaction, the activation energy, or both?
if two atoms of element A react with three atoms of element B, what is the chemical formula for the resulting compound
What is the pH of buffer that consist of 0.20 M NaH2PO4 and 0.40 M Na2HPO4? Ka=6.2x10^-8
Explain what it means that the atomic mass of naturally occurring Ag, is a mixture of its two isotopes forms, is 107.868 u.
Find the volume if Zinc Coating(both sides) the thickness of Zinc Coating in cm (both sides) and the thickness of Zinc Coating in cm (one side)?
A student carry out an experiment in which (II) chloride Hexahydrate reacts with ammonia to produce hexamminenickle (II) Chloride (formula = Ni(NH3)6Cl2) as well as water if 6.024 grams of hexamminenicle (II) Chloride are produced, what is the per..
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