Search & Filtering
A 0.010 mol sample of barium nitrate formed was heated until it had completely decomposed according to the following balanced equation: 2Ba (NO3)2(s) ˗˗˗˗˗˗˗˗˗˃˃ 2 BaO(s) + 4 NO2 (g) + O2(g) a) Use the ideal gas equation to calculate the total volume, cm3, of gaseous products obtained at 387 K and 1.12 × 105 Pa. b) The Kinetic Theory of gases is an attempt to explain the properties (behaviour) of ideal gases. What assumptions (at least three) does this theory make about gas molecules?
You have a solution containing 0.05 mole/l of Acetic acid and another solution containing 0.01.mole/l ammonium chloride
If feasible to make buffer solution from these two?if so calculate the pH of the solution. Dissociation constant of Acetic acid at room tem is 4.6×10^-5
What does acetone and a base make
4-ethyl -2,5,5- trimethyl heptane
Hydrolysis of a compound B (formula C7H5Cl2) was carried out by refluxing with excess potassium hydroxide solution. The resulting solution was acidified with dilute nitric acid and excess silver nitrate added to precipitate the chloride ions as silver chloride, 0.718g of silver chloride was formed from 0.805g of B.
a. Calculate the number of chlorine atoms present in each molecule of B which are liberated by hydrolysis.
b. Suggest an explanation for results obtained in (a).
c. Give a possible structure of B.
In each of following cases give the name or structure of one compound which fits the information given. Explain your reasoning and write equations for the reactions involved.
a. R is a liquid which react vigorously with concentrated aqueous ammonia to form a solid which is readily dehydrated by warning with phosphorus v oxide.
b. S is a liquid which dissolves in hot aqueous sodium hydroxide to form a solution which on cooling and acidifying precipitate a white solid. A solution of this solid evolves carbon iv oxide with aqueous sodium carbonate.
The label on a reagent bottle containing a clear organic liquid (K) dropped off. K was neutral to litmus and give a colourless gas D with sodium.
a. To which homologous series does K belong?.
b. Name the gas D.
The label on a reagent bottle containing a clear organic liquid (k) dropped off.K was neutral to litmus and gave a colourless gas (D) with sodium.To which homologous series does K belong?
how are fatty acids with an odd number of carbon atoms and unsaturated fatty acids oxidize differently to even numbered, saturated fatty acid chains
Explain how hybridisation can be used to explain the structure of benzene.
How does pi bonding help to explain the structure of benzene?
How does delocalisation of electrons help to explain the structure of benzene and disprove the structure suggested by Kekule?
