Vitamin C has the structure shown. [Figure showing the structure of Vitamin C] The mass spectrum of vitamin C has a molecular ion peak with an m/e value of 176 and a relative abundance of 7.0%. What is the abundance of the M +1 peak?

Qualitative Analysis For each test you should record all your observations in the spaces provided. Examples of observ…

Sea water contains about 20gdm-³ of chloride ions, Cl-(aq). The exact concentration of Cl-(aq) in sea water can be de…

Compound L contains carbon atoms. It is analysed in a mass spectrometer. The table shows the relative abundance of th…

The eight species that follow all have covalent bonds. In which pair do the species have different shapes from each o…

A sample of gas occupies 240 cm³ at 37 °C and 100 kPa. How many moles of gas are present in the sample?

The standard enthalpy changes of combustion of carbon, hydrogen and methanol are shown. C(s) + O₂(g) → CO₂(g) ∆Hᶜ = −…