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Chemistry: Post your doubts here!
You already said why, because you still want the reaction to be in equilibrium. -
Chemistry: Post your doubts here!
As the plunger is pushed in, the volume decreases and the pressure increases. Higher pressure favours a fewer number of moles. At equilibrium there's 1 mol PCl5 on the left compared to 2 moles of gases on the right. So as the plunger is pushed in, the position of the equilibrium shifts to the... -
Chemistry: Post your doubts here!
Both will increase, just one increases faster than the other to produce the yield faster. -
Chemistry: Post your doubts here!
For the reaction to proceed rapidly, the activation energy must be low. Since a lower activation energy means the particles gain sufficient energy faster. The only graphs with low activation energies are C and D, but C has a lower activation energy than D, so your answer will be C. Red... -
Chemistry: Post your doubts here!
You need to consider the following: Initially ---> Change -----> Equilibrium Initially there are 2 moles of P and no products yet. As the reaction proceeds, P partly decomposes to produce Q and R. At equilibrium they tell you that x moles of R were present and the total number of moles of both... -
Chemistry: Post your doubts here!
Increasing the temperature will increase the rates of both the forward and backward reactions, it's just that the backward reaction will increase at a faster rate. Remember, the reaction is in equilibrium. Equilibrium has to be dynamic, in that, both the forward and backward reactions must... -
Chemistry: Post your doubts here!
Forward reaction is endothermic. Endothermic reactions favour an increase in temperature, so since the forward reaction is endothermic, an increase in temperature shifts the equilibrium to the right. With an increase in temperature, and since we're dealing with gases, the gas particles gain... -
Chemistry: Post your doubts here!
As the reaction proceeds, the reactions will get used up and reactants will be formed. At the end of the reaction, there'll be no more reactants to form products from, so the graph has to flatten out at the end to indicate that no more [CH3OH] is going to be formed. If you look at graph B, it's... -
Chemistry: Post your doubts here!
Group two elements undergo thermal decomposition like this: 2 X(NO3)2 ------> 2XO + 4NO2 + O2 X being any group 2 element. The two gaseous products formed are nitrogen dioxide and oxygen, with XO being the white solid. Both Mg and Ca's oxides give white solids. The test for oxygen is that it... -
Chemistry: Post your doubts here!
The graph represents a two step reaction because of the two dips visible. So from all of those 3 options you need to eliminate the single step reactions. All of the options presented are of halogenoalkanes under going substitution reactions with NaOH or NH3. A key factor is the degree of... -
http://www.thetimes.co.uk/tto/multimedia/archive/00234/45901708_OTD_babyca_234769c.jpg
http://www.thetimes.co.uk/tto/multimedia/archive/00234/45901708_OTD_babyca_234769c.jpg- Xylferion
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Chemistry: Post your doubts here!
Already explained this. It's the first post on this page. -
Chemistry: Post your doubts here!
For the first one, Ca(OH)2 + SO2 -------> CaSO3 + H2O Ca combines with SO2 ---> CaSO2 and then the extra Oxygen atom comes from (OH)2. The other product is water. The process mentioned above is known as flue-gas desulfurization. Which is dealing with the waste gases that contain SO2. To be more... -
Chemistry: Post your doubts here!
CH3CH2CH2CO2CH3 undergoes acid hydrolysis in the stomach under the presence of water, with HCl being the acid catalyst of the hydrolysis. [CH3CH2CH2CO2] comes from the carboxylic acid and CH3 comes from the alcohol. During esterification, OH is taken from the alcohol and H is taken from -COOH... -
Chemistry: Post your doubts here!
2Mg(NO3)2 ------> 2MgO + 4NO2 + O2 Mg(NO3)2 = 148 g Moles of Mg(NO3)2 = 29.7 / 148 =0.201 Ratio is 2 : 1 So 0.1005 moles of O2 formed. 0.1005 moles * 32 g ( Molar mass of O2) = 3.216 g , The answer is A. Hope that helped (y) -
http://images2.ddccdn.com/otc/114626/41ba141f-408c-4973-8406-557c65c80d81-01.jpg
http://images2.ddccdn.com/otc/114626/41ba141f-408c-4973-8406-557c65c80d81-01.jpg- Xylferion
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help please
Firstly, stop preparing to fail. You still have time, little or not, there is time. What matters most is that you use that time constructively instead of wasting it all, worrying. Gather resources for you to study from, often at times I would panic because I had nothing in front of me to begin... -
Chemistry: Post your doubts here!
For a fixed quantity of gas, that is the amount of gas present does not increase ( add gas ) or decrease ( gas escapes ), ( A closed valve indicates that nothing is escaping ) we can use the following relation: p1V1/T1 =p2V2/T2 1 x 10^ 5 * V / 293 Kelvin = final pressure * 4V / 373 Kelvin V... -
Can't help you with that, perhaps this? http://i.imgur.com/VgYf4vW.gif
Can't help you with that, perhaps this? http://i.imgur.com/VgYf4vW.gif- Xylferion
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