Give the general pattern of the paramagnetic moments of lanthanoid ions with the help of graph.
Suppose that 0.04 mol NaOH is dissolved in 300 ml of the following
buffer solution. 0.02 M NaCH3COO and 0.04 M CH3COOH. What is
the final pH of the solution? Ka of conjugate acid =1.80 x 10-5
Calculate Qsp if 0.00050M NaF is mixed with 0.000015M Ca5(PO4)3OH in equal volumes. The book is giving 2.4 x 10 -40 as the answer and I can't reconcile that
Calculate the wavelength of radiation emitted producing a line in Lyman Series, when an electron falls from the third orbit in hydrogen atom. [RH = 1.1 x 107]
Calculate the wavelength of radiation emitted producing a line in Lyman Series, when an electron falls from the third orbit in hydrogen atom. [RH = 1.1 x 107]
Determine the equilibrium constant (kc) for the synthesis of PCl5 from PCl3 and Cl2 (PCl3 +Cl2 ⇌ PCl5).
a) A solution was prepared by dissolving 0.02 moles ethanoic acid in
water to give 1 L of solution. What is the pH?
b) to this solution was added 0.008 moles of concentrated sodium
hydroxide (NaOH). What is the new pH? (In this question you may
ignore changes in volume due to addition of NaOH).
How many gram of potassium and iodine present in one kilogram of KI
Determine the relative molecular mass \& relative formula mass of the following substances. [6] - Chlorine
Ammonium nitrate is produced when ammonia is combined with concentrated nitric acid as shown in the following balanced equation: NH,(aq) + HNO,(aq) — NH,NO)(aq) In an experiment, 404.2 g of ammonium nitrate is produced when 112.5 g of ammonia and excess nitric acid are combined. Determine the percentage yield of the product.