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Chemistry
All levels

What is the ideal gas equation and what relationships can we derive from it?

The ideal gas equation is given by pV = nRT, where p is pressure of the gas, V = volume, n = molar amount, T = temperature (in Kelvin!) and R is the gas constant which is given by 8.31 J / (K*mol). From t...

KC
Answered by Ketan C. Chemistry tutor
2345 Views

How to calculate the number of protons, neutrons and electrons in an atom of chlorine?

Protons have a +1 charge and electrons have a -1 charge. The overall charge on an atom is 0, therefore there must be an equal number of protons and electrons in an atom so that the charges cancel out. So ...

AT
Answered by Abbey T. Chemistry tutor
44303 Views

How can we determine the molecular and electron geometry of H2O?

The molecular geometry deals with the position of the nucleus of the different atoms in the molecule whereas the electron geometry deals with the position of the orbitals. Electron geometry is specific fo...

ER
Answered by Eva R. Chemistry tutor
6427 Views

What is the difference between an endothermic and exothermic reaction?

(Using a diagram of energy changes) The simplest way of thinking about it is that exothermic reactions release energy, such as heat, to the surroundings whereas endothermic reactions absorb energy from th...

CC
9284 Views

Why is SiO2 a solid whereas CO2 is a gas at room temeperature?

The main factor influencing a given compound's state is the strength of intermolecular forces - those need to be larger than the thermal energy for a compound to be solid/liquid. For CO2 the only type of ...

WG
6631 Views

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