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Butan-2-ol cannot be directly converted to 1,2-dibromobutane. The conversion can be carried out in two stages by first converting butan-2-ol into X, which is then reacted with bromine.(continued in answers)

butan-2-ol --?→ X --Br 2 → 1,2-dibromobutane(a) State the name and draw the structural formula of X(b) State an equation and the conditions needed for the conversion of butan-2-ol into X.(c) Describe the mec...
KT
Answered by Kiril T. • Chemistry tutor
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Magnesium reacts with hydrochloric acid to form a salt. What volume of 0.2dm(-3) HCL is required to react with 4g of Magnesium? Give answer in cm(3).

First draw out the equation. Mg + HCL = MgCl 2 + H 2 Now balance this equation Mg + 2HCl = MgCl 2 + H 2 Next we need to work out the moles of Mg. We know that we have 4g and Mg has a molar mass of 24. Mass/m...
KC
Answered by Katie C. • Chemistry tutor
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Explain Le Chatelier's Principle

In a chemical equilibrium, the position of the equilibrium will always move to oppose any change in temperature, pressure or concentration of reactants/products. For example, if temperature is increased, the...
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Answered by Jacob C. • Chemistry tutor
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How does temperature affect the position of equilibrium if the reaction is exothermic?

Imagine the reaction A + B <-> C+D where the forward reaction is exothermic. If we increase the temperature of the surroundings, the equilibrium is going to shift to the direction that reduces the temp...
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Answered by Frances A. • Chemistry tutor
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In the flowing equitation 2H2+O2→2H2O how many grams of oxygen are needed to make 9g of water?

2H 2 +O 2 ->2H 2 OThe best way to answer any mass balancing questions like this is to set the information in a table as follows and fill in the blanks: 2H 2 + O 2 -> 2H 2 OMass ? 9gMr Moles 1. The firs...
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