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Question 66

During the analysis of a catalytic converter, a coating containing 780 mg of platinum is recovered.

Calculate the number of platinum atoms in 780 mg of platinum.

Give your answer to 3 significant figures.

( $Ar(Pt)=195\text{relative atomic mass } A_r(\text{Pt}) = 195$ ; Avogadro constant = 6.02 × 10²³ per mole)

[3]

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 66

During the analysis of a catalytic converter, a coating containing 780 mg of platinum is recovered.

Calculate the number of platinum atoms in 780 mg of platinum.

Give your answer to 3 significant figures.

( $Ar(Pt)=195\text{relative atomic mass } A_r(\text{Pt}) = 195$ ; Avogadro constant = 6.02 × 10²³ per mole)

[3]

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.