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Chemistry

A Level

Define the term 'Bronsted-Lowry acid'

A proton ( H+ ion) donor

Answered by • Chemistry tutor

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Give the electron configuration of fluorine

1s² 2s² 2p⁵

Answered by Becky S. • Chemistry tutor

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Write a balanced half equation for the oxidation of Mn 2+ to MnO4 -

Mn²⁺+ 4H₂O => MnO₄^- + 8H⁺+ 5e^-

Answered by Alexander E. • Chemistry tutor

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Give the IUPAC name of CH3CH2CH2CH2CH(OH)CN and describe why the formation of this molecule creates 2 enantiomers.

The IUPAC name of CH₃CH₂CH₂CH₂CH(OH)CN is 2-Hydroxyhexanenitrile as its carbon chain is 6 carbons long (Hex). The nitrile group takes naming priority over the a...

Answered by Owen R. • Chemistry tutor

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An amino acid contains 52.2% carbon, 9.3% hydrogen, 8.7% nitrogen and 29.8% oxygen by mass and has a relative molecular mass of 161 g/mol. What is its molecular formula? What functional groups must it have?

In 100g of compound, the amount of each element is given by: C: n = 52.2/12 = 4.35 H: n = 9.3/1 = 9.3 N: n = 8.7/14 = 0.621... O: n = 29.8/16 = 1.8625 Dividing through by the smallest amount (0.621) gives...

Answered by Georgina B. • Chemistry tutor

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