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How does increasing temperature cause an increase in rate of reaction?

As you increase the temperature of the reaction, the particles gain kinetic energy. This causes them to move faster and as a result, the frequency of collisions increases. This means there is an increased pr...
AB
Answered by Aryan B. • Chemistry tutor
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Heating 3.210g of hydrated magnesium sulfate, MgSO4.XH2O, forms 1.567g of anhydrous magnesium sulfate. Find the value of X and write the formula of the hydrated salt

We need to find the value of X (the water of crystallisation) and to do this we can start by calculating the moles of water lost and the moles of the anhydrous salt (the salt product without water), we do th...
SR
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For the reaction, 2SO2(g) + O2(g) => 2SO3(g), suggest the optimal conditions to maximise yield of SO3 when the forward reaction is exothermic.

So the most important thing to answer this question is to understand how an equilibrium works: it will always try to counteract the change you are making. For example, if you add more SO 3 into the mixture, ...
AB
Answered by Andre B. • Chemistry tutor
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Calcium nitride contains 81.1% by mass of the metal. Calculate the empirical formula of calcium nitride. Show your working.

Ca NPercentage: 81.1% 18.9%Relative atomic mass: 40.1 14Ratio: (81.1/40.1) (18.9/14) 2.02 : 1.35 1.5:1 3:2Empirical formula: Ca 3 N 2
LC
Answered by Laura C. • Chemistry tutor
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Why does the nucleophilic addition of a cyanide ion to an aldehyde form a racemic mixture?

Because the plane of the C=O bond in an aldehyde is flat, and so the nucleophilic attack of CN - onto the C can occur above or below the plane of the molecule, producing two different stereoisomers of a 2-hy...
SA
Answered by Success A. • Chemistry tutor
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