Top answers

Chemistry
All levels

How could you obtain a carboxylic acid from oxidation of an alcohol and what type of alcohol would be suitable?

Primary alcohol is the only alcohol which can fully oxidise as it first oxidises to an aldehyde and this can be further oxidised to a carboxylic acid. This is not possible with 20 alcohols as t...

Answered by Samuel H. Chemistry tutor
1454 Views

If you have 20.82g of Lithium (Molar mass = 6.34gmol^-1), how many moles of Li is it?

number of moles = mass / molar massTherefore, n=20.82g/6.34gmol-1=3moles

Answered by Sam H. Chemistry tutor
2373 Views

Define enthalpy of neutralisation and state standard conditions:

Enthalpy of Neutralisation: the energy change a system experiences when one mole of water is formed from the neutralisation of an acid with an alkali under standard conditions.Standard conditions: 298K, 1...

Answered by Sam H. Chemistry tutor
4374 Views

How many Protons, Neutrons and Electrons are there in an atom of Silicon, Si?

Using a copy of the periodic table, look up the Mass and Atomic numbers of Silicon. Mass number = 28; Atomic number = 14. The Atomic number is equivalent to the number of Protons in an atom, so there are ...

Answered by Eloise S. Chemistry tutor
91169 Views

Describe how a sample of copper chloride crystals could be made from copper carbonate and dilute hydrochloric acid.

To make crystals of copper chloride from copper carbonate andd dilute HCl, you will firstly need to add an excess of copper carbonate to the dilute HCl (keep adding until no more reacts). Next, take the s...

Answered by Sian J. Chemistry tutor
23037 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