Chemistry, 30.10.2020 14:10 zitterkoph
A sample containing x mol of Al 2Cl 6 is dissolved in water to give solution W.
In order to precipitate all of the aluminium as its hydroxide, y mol of sodium hydroxide are
required.
More of the alkali is added to re-dissolve the precipitate, giving solution Z.
Which statements are correct?
1 the initial pH of solution W is below 7
2 y = 3x
3 Z contains x mol of aluminium
Only 1 is correct , i don't understand why though. Help is appreciated.
Thankks in advance.
Answers: 1
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A sample containing x mol of Al 2Cl 6 is dissolved in water to give solution W.
In order to precipi...
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