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Calculations involving masses

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Question 106

Aluminium sulfate is a chemical compound widely used as a coagulant in water purification facilities.

Calculate the relative formula mass ( $M_r$ ) of aluminium sulfate, $Al2(SO4)3\text{Al}_2(\text{SO}_4)_3$ .

Relative atomic masses ( $A_r$ ):

$Al=27\text{Al} = 27$
$S=32\text{S} = 32$
$O=16\text{O} = 16$

[2]

Markscheme

Calculations involving masses Questions

GCSE
Chemistry
Calculations involving masses

258 exam-style questions on Edexcel GCSE Chemistry Calculations involving masses. Each one has a worked solution and a mark scheme showing where the marks go.

Calculations involving masses

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Calculations involving masses

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Question 106

Aluminium sulfate is a chemical compound widely used as a coagulant in water purification facilities.

Calculate the relative formula mass ( $M_r$ ) of aluminium sulfate, $Al2(SO4)3\text{Al}_2(\text{SO}_4)_3$ .

Relative atomic masses ( $A_r$ ):

$Al=27\text{Al} = 27$
$S=32\text{S} = 32$
$O=16\text{O} = 16$

[2]

Markscheme

Calculations involving masses Questions

GCSE
Chemistry
Calculations involving masses

258 exam-style questions on Edexcel GCSE Chemistry Calculations involving masses. Each one has a worked solution and a mark scheme showing where the marks go.