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Write equations and give the mechanism for the reaction of butanone with: 1) NaBH4 and 2) HCN

The first thing we need to do in this type of organic chemical reaction, is identify our electrophiles and nucleophiles. We know that due to the electronegativity of the oxygen atom in carbonyl compounds tha...
HS
Answered by Harry S. • Chemistry tutor
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What is the electron arrangement of Potassium (K)?

2,8,8,1
SM
Answered by Sameer M. • Chemistry tutor
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Describe the structure and bonding in Benzene (C6H6).

Benzene is a planar 6 membered cyclic ring, with each atom in the ring being a carbon atom (Homo-aromatic). Each carbon atom is sp^2 hybridised being bonded to two other carbon atoms and one hydrogen atom. T...
GN
Answered by George N. • Chemistry tutor
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A sample of nitrogen gas is heated to 100°C, at a pressure of 10kPa and volume of 0.2m^3. How many moles of gas are present?

In order to answer this question, the equation: PV=nRT must be used.P is pressure, V is volume, n is moles, R is the gas constant and T is temperature. Firstly the units in the question must be converted to ...
TB
Answered by Tara B. • Chemistry tutor
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What is the definition of "Enthalpy Change of Formation"

The Enthalpy change when one mole of product is formed from its elements under standard states and conditions.
CK
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