Top answers

Chemistry
All levels

What is enthalpy and how can it be calculated?

Enthalpy is a thermodynamic property that chemists can use to describe the heat energy transferred throughout a chemical reaction. It is especially useful given that it is defined as "a measure of h...

Answered by Chemistry tutor
1326 Views

A) The compound butan-2-ol reacts with acidified potassium dichromate(VI) to form a new compound. Give the IUPAC name of the Product. B) 2,2-dimethyl butan-2-ol was subjected to the same conditions. State and explain the outcome

A) butan-2-one. [1 mark]
B) 2,2-dimethyl-butan-2-ol is a tertiary alcohol so it is not oxidised and would be recovered unreacted [2 marks]

Answered by Chemistry tutor
4875 Views

Using diagrams, describe the difference between Ionic, Covalent and Metallic Bonding.

Ionic bonding is the electrostatic forces of attraction between a metallic and non-metallic ion. The metallic ion has a positive charge ...

Answered by Eliza B. Chemistry tutor
2440 Views

How do you prepare an insolvent salt by precipitation?

Firstly, add two solutions of soluble compounds. Eg when making MgCl2, add Magnesium Nitrate and Sodium Chloride, as these two solutions are soluble. Then, mix the two solutions together in a b...

Answered by Keira H. Chemistry tutor
1178 Views

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
2678 Views

We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo
Cookie Preferences