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Document for the redox titration using sodium thiosulphate
Based on electronegativity differences, what do you think is the identity of the polyatomic anion. NaAlH4
1. For the following molecule, draw the correct Lewis structure. In the blanks, indicate the molecular geometry around the central atom, the hybridization around the central atom, and approximate bond angles (180°, 120°, 109.5°).
an alum is a double salt consisting of a monovalent cation a trivalent cation and two sulfate ions with twelve water of
a 25ml sample taken from saturated solution of caoh2 required 36.0ml of 0.100m hcl to titrate. calculate the
After the reaction comes to equilibrium, he adds another 2.60 g of chlorine to the vessel in order to push the reaction to the right to get more products. What is the partial pressure of phosgene when the reaction again comes to equilibrium? Kc = ..
A gas expands and does P-V work on the surroundings equal to 323 J. At the same time, it absorbs 145 J of heat from the surroundings.
To prepare a fertilizer, an engineer dilutes a stock solution of sulfuric acid by adding 24.7 L of 5.25 M acid to enough water to make 500. L. What is the mass of sulfuric acid per milliliter of the diluted solution. 4 significant figures.
the properties of pure water that had been boiled and condensed and the properties of pure water that has been frozen and then melted? Explain please.
A1.15 g sample of dry ice is added to a 765 mL flask containing nitrogen gas at a temperature of 25.0 C and a pressure of 715 mm Hg.
Calculate Kp for the reaction 2NOCl(g) ->2NO(g) + Cl2(g) at 400degrees C if Kc at 400 degrees C for this reaction is 2.1 × 10-2
How many moles of table salt (NaCl) are in a box that has 117 grams of salt? (atomic mass of Na = 23.0; atomic mass of Cl = 35.4)
Give a technical explanation as to why AM radio stations are much more susceptible to noise and interference compared to FM radio stations. 2. Modern technology has given us satellite radio. With 100+ stations and availability across the country, it ..
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