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Nitric acid is a strong acid, but nitrous acid is a weak acid. Why? A. there are more electronegative oxygen atoms bonded to the N atom, resulting in a higher oxidation state of the N atom and resulting in a more polar O?H bond B. the electronegativity of the N atom in greater in nitric acid than it is in nitrous acid C. the N atom in nitric acid is slightly larger than the N atom in nitrous acid D. the nitrate ion is a stronger base than the nitrite ion E. the higher oxidation state of the N atom results in a weaker N?H bond
In HPLC, how often should I need to run standard with samples? Why? If the retention time is changed with real samples compared to standard
Zn(s) + 2 HCl(aq) → H2(g) + ZnCl2(aq) If 1.26 L of H2 gas are formed at STP, how many g of HCl reacted?
Calculate the pH of each of the following solutions. (a) 0.115 M HONH2 (Kb = 1.1 10-8)
what is the energy of an X ray with a wavelength of 3.52×10-9m and a microwave with a wavelenght of 6.63×10-2m?
What exactly are myosin, actin, troponin and tropomyosin chemically?, What molecule releases energy when its bonds are broken. Which bonds are broken to release that energy?
Use a drawing program to draw a beaker.
.1500g of an unknown sample was passed through a column of Amberlite-IR-200(+) resin and titrated with .2050M NaOH. If 9.75mL of titrant was required to reach phenolphthlein endpoint,
Compute mass of Carbon dioxide formed from the decomposition of 59.0 grams of NaHCO 3 ?
Determine how many moles of the ANION are present in this resulting solution If 4 moles of the ionic compound get dissolved in this reaction?
Calculate the volume of 1.94×10-3-M H2SO4 solution needed to provide 4.83×10-3 g of H2SO4.
a student produces 2.73 g of a compound. She calculates the theoretical yield as 3.40 g. What is the percent yield
What is the boiling point of a solution made using 813g of sucrose, C12H22O11, in 0.275 kg of water,H2O.
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