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Chemistry
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If 350gNaCl is dissolved in water and made up to a volume of 3dm^3, calculate the concentration of the solution.

Moles= Mass/Mr Mol (NaCl)= 35/(23+35.5)=350/58.5=0.6Concentration= Moles/volumeConc(NaCl)= 0.6/3=0.2mol/dm3

LP
Answered by Lucy P. Chemistry tutor
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Describe the stages of a heterogeneous catalyst reaction route.

The reactants adsorb to an active site on the surface of the catalyst. The active site places the reactants in an orientation that allows them to easily react. The reaction then occurs an...

OG
Answered by Oliver G. Chemistry tutor
1814 Views

How do I work out the formula of ionic and covalent compounds?

First, ionic compounds form bonds by transferring electrons from their outer shell. Covalent compounds form bonds by sharing electrons within their outer shell. The number of electrons in the outer shell ...

MB
2561 Views

Why does silicon dioxide have a higher melting point than sulphur?

Silicon dioxide (SiO2) has a macromolecular structure. This means that it forms thousands of covalent bonds between its silicon and oxygen subunits. Sulphur trioxide (SO3), meanwhile, has a simple covalen...

JL
Answered by Jacob L. Chemistry tutor
28654 Views

Describe and explain one anomalous property of water.

One anomalous property of water is that when in its solid phase (ice) it is less dense than when it's in its liquid phase. This arises because of the hydrogen bonding network that exists between water mol...

DE
Answered by Dan E. Chemistry tutor
13104 Views

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