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Chemistry
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At 25 °C, the initial rate of reaction is 3.1 × 10−3 mol dm−3 s−1 when the initial concentration of C is 0.48 mol dm−3 and the initial concentration of D is 0.23 mol dm−3 . Calculate a value for the rate constant at this T when rate = k [C][D].

The rate equation is given. So the first step is rearranging it to make the rate constant k the subject of the equation, by dividing both sides by [C][D]. k = (rate/[C][D]) now plug in the values given in...

Answered by Krystof C. Chemistry tutor
1916 Views

Describe a two step reaction route that can convert 1-Butene (CH2CHCH2CH3) into a compound that is more soluble in water. Use mechanisms to aid your answer (HINT: one of the steps involves nucleophilic substitution)

CH2CHCH2CH3 + HBr (room temp) --> CH3CH(Br)CH2CH3CH3CH(Br)CH2CH3 + NaOH (reflux) --> CH3...

Answered by Sean N. Chemistry tutor
708 Views

Rank the following compounds in acending order of melting point (and explain your reasoning): CH3CH2CH2NH2, CH3CH2CH3, CH3CH2CH2OH

CH3CH2CH3 , CH3CH2CH2NH2 , CH3CH2CH2OHThe only major intermolecular force that takes place in ...

Answered by Sean N. Chemistry tutor
1052 Views

3.786g of hydrated zinc sulphate, ZnSO4•xH2O, is heated to remove all water of crystallisation. The mass of anhydrous ZnSO4 formed is 2.122g. What is the formula of the hydrated zinc sulphate?

Water of crystallisation describes water molecules that are bonded into a crystalline structure of a compound. By knowing the mass of the hydrated salt (3.786g) and of the anhydrous salt (2.122g) it is po...

Answered by Claire F. Chemistry tutor
6084 Views

The standard enthalpy of formation of glucose is -1273.3kJ/mol, and for carbon dioxide it is -393.5kJ/mol, and for water -285.8 kJ/mol. What is the standard enthalpy of combustion of glucose, C6H12O6?

The reaction equation has the form C6H12O6 + xO2 -> yCO2 + zH2O. Balancing carbons, y=6. Balancing ...

Answered by Amber C. Chemistry tutor
23589 Views

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