Top answers

Chemistry
A Level

The ratio between the molar mass of an alkene(A) and an alkyne(B) with the same number of carbon atoms is 1.05. Find the molecular formulas of the two hydrocarbons then write the reaction for how we can obtain the alkene A from the alkyne B.

We start by remembering the general formulas of alkenes and alkynes:
Alkenes - CnH2n
Alkynes - CnH2n-2
We calculate the molar mass of both of the...

CB
Answered by Cosmin B. Chemistry tutor
9094 Views

Why do transition metals form coloured solutions?

White light is a mixture of different colours of light (e.g red, green and blue) and each colour has a different wavelength. For something to have colour, it needs to absorb certain wavelengths...

YB
Answered by Yusuf B. Chemistry tutor
11459 Views

At what temperature does the reaction become feasible? When ΔH = 492.7 kJmol^-1 and ΔS = 542.6 JK^-1mol^-1.

When a reaction is feasible ΔG = 0. Rearrange the equation ΔG = ΔH - TΔS. So that when ΔG = 0,       T = ΔH / ΔS.

Must convert ΔS from JK^-1mol^-1 to ...

LW
Answered by Lily W. Chemistry tutor
19065 Views

How is the electrophile formed for the nitration of benzene??

React concentrated sulfuric acid with concentrated nitric acid in the below reaction to yield the nitronium ion.

HNO3  + 2H2SO4   --> NO<...

JD
Answered by Jessie D. Chemistry tutor
4912 Views

What is the difference between an aldehyde and a ketone, and what type of molecule can they each be reduced to?

Both aldehydes and ketones have a carbonyl functional group (C=O), however in aldhydes the carbonyl carbon atom is the terminal carbon of the chain, whereas in ketones the carbonyl carbon has two alkyl...

AP
7697 Views

We're here to help

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

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences