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In the manufacture of sulfuric acid the reaction 2SO2(g) + O2(g) 2SO3(g) usually takes place at 400 °C and 1 atm pressure. In one industrial plant, it is decided to change the pressure to
20 atm
What will be the consequences of this change
1 increased running costs
2 an increased percentage of sulfur trioxide in the equilibrium mixture
3 the rate of the backward reaction increases
The answer is A which 1,2 and 3 are correct
But how the rate of the backward reaction increases? I thought it should be decreases?
Hydroxyethanal, HOCH2CHO, is heated under reflux with an excess of acidified potassium
dichromate(VI) until no further oxidation takes place.
What is the skeletal formula of the organic product?
Hi there I am new to this site. Still trying to get familiar with it.
Wanted the reason for the answer of question 9
thanks
Can anyone kindly answer the question below(and explain why he/she chose the staement).
Q.Two bulbs R and S, connected by a mercury manometer, are held in a thermostat, as shown. The volume of R is twice that of S. R contains gas, X, at the same pressure as the nitrogen in S.When the temperature is increased, which gases in bulb R would cause the mercury level in the right-hand limb of the manometer to rise? 1. an equilibrium mixture N2F4(g) to 2NF2(g); ∆H positive. (PAST PAPER REFERENCE;M-J/2007/PAPER 1/Q34.)
1 Most submarines travel under water using electrical power from batteries. The German
engineer Helmut Walter designed a diesel engine that could be used to propel a submarine
beneath the surface of the sea. Instead of taking air from above the surface of the sea,
Walter’s engine used hydrogen peroxide, H2O2, to provide oxygen for a conventional diesel
engine.
Hydrogen peroxide may be catalytically decomposed to give water and oxygen.
(a) (i) What is meant by the term catalyst?
..................................................................................................................................
..................................................................................................................................
(ii) Construct a balanced equation for the decomposition of H2O2.
............................................................................................................................. [3]
Diesel fuel may be considered to consist of the hydrocarbon C15H32 which reacts completely
with oxygen according to the following equation.
C15H32 + 23O2 → 15CO2 + 16H2O
(b) (i) To which homologous series does C15H32 belong?
................................................
(ii) Use the equation above and your answer to (a)(ii) to calculate the amount, in moles,
of H2O2, that will provide sufficient oxygen for the complete oxidation of one mole
of C15H32.
amount of H2O2 = ................................. mol
How to do the last part
Answer is here in pdf file:Hi there I am new to this site. Still trying to get familiar with it.
Wanted the reason for the answer of question 9
thanks
Concentrated sulfuric acid behaves as a strong acid when it reacts with water
H2SO4 + aq => H^+ + H2SO4^-
The HSO4^- ion behaves as a weak acid.
H2SO4^-(aq) <=> H^+(aq) + SO4^2-
Which statements are true for 1.0 ml dm^3- sulfuric acid?
1. [H^+(aq)] is high
2. [SO4^2- (aq)] is high
3. [HSO4^-(aq)] = [SO4^2-(aq)]
Please explain the answer and reason? (Only statement 1 is correct)
9701/12/m/j/ 16 ques 14
Answer is D
Please explain the answer
Thanks.As you calculated the total number of chiral centres in part (ii) 2 thus total optical isomers will be 2^2=4
When the molecule is unsymmetrical and contains ''n '' chiral carbon atoms, Total no. of stereoisomers = 2^n.
https://drive.google.com/drive/folders/0Bx_kNsO4S1YbZC1GOHI4TS1HOTACan anyone upload a single solved Chemistry P5. PLZ!
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