Inorganic Chemistry Answers

1) Surface activity is negative for:
a- C3H7OH
b- CH3COOH
c- Na2SO4
d- C2H5OH
e- C6H12O6

A 32.86g sample of hydrate cocl2 was heated thoroughly in a crucible,until it weight remain constant. after heating,17.98g of the dehydrated compound remain in the crucible.what is the formula of the hydrate?

Why SnCl2 dissolves in HCl but not in ammonia .

1mole of nitrogen and 3moles of hydrogen were mixed at 593k and 2x10^7Pa At equilibrium the mixture contains 1.5moles of ammonia calculate pressure constant

Why n to pi star transition requires least amount of energy

the reaction of cf2=cf2 with the(co) 12 gives colorless crystalline compound a ( c : 26.5 % f : 41.7 % fe : 15.4% ) the infrared spectrum of a shows bands at 2160,2108,2088 and 2055 cm the mass spectrum includes peaks at m/e values of 368, 340,312,284,256, and 162 ( the most intense peak ) the first five of these peaks correspond ( from the isotope pattern ) to iron-containing ions , but the peak at 162 does not contain iron the 19f nmr spectrum of a consists of two equal-area multiplets at 9.25 and 73.95 ppm upfield of benzo trifluoride the molecular mass of the compound was estimated from 19f nmr measurements and by x-ray crystallography to be 373 identify compound a and suggest its structure [c=12, f=19, fe =55.8, o=16 the most abundant isotope of iron has mass 56 ]

the reaction of cf2=cf2 with fe (co) 12 gives colour less crystalline compound a ( c : 26.5 % f : 41.7 % fe : 15.4% ) the infrared spectrum of A shows bands at 2160,2108,2088 and 2055 cm

When 25.00mL of sodium hydroxide solution of unknown concentration was titrated against a standard hydrochloric acid solution of concentration 0.098 mol L-1, 14.73 mL of the acid was needed to completely neutralize the base. Calculate the concentration of the sodium hydroxide solution

4.569 of Na2CO3 was dissolved in a beaker containing a small volume of distilled water. The resulting solution was poured into a volumetric flask. The beaker was repeatedly rinsed with distilled water and the rinsings were also poured into the flask. Finally, the volume of the solution was bought up to the calibration line. Calculate the concentration of the solution in mol L-1

Calculate the mass of oxalic acid, (COOH)2.2H2O, required to prepare a standard solution with a volume of 100 mL and a concentration of 0.125 mol L-1.