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Empirical formulaThe empirical formula is a formula giving the proportions of the elements present in a compound but not the actual numbers or arrangement of atoms. To find this you require the mas...

Isotopes are atoms of an element with different numbers of neutrons. They have the same proton number, but different mass numbers. They have the same chemical properties, due to having the same number of ...

There are three steps:
Calculate [CH₃COO^–] using the equation for K_aCalculate the moles of CH₃COO^– using the equation concentration = moles/volu...

There are four main areas we need to consider in answering this question. The first is Sodium, Magnesium and Aluminium. These are all metals and so have a metallic bonding structure. As you go across the ...

A physical test for pure water is testing the boiling or freezing point. Pure water will boil at 100 degrees Celsius and freeze at 0 degrees Celsius. One chemical test is to use cobalt chloride paper - th...