How many Relative masses of atoms and molecules questions are there for 9701?

This page collects 4 recent Cambridge Chemistry (9701) past-paper questions tagged to Relative masses of atoms and molecules. Each links straight to instant marking against the official 9701 scheme.

How are Relative masses of atoms and molecules answers marked?

Type or photograph your working and MarkScheme scores it against the real 9701 mark scheme for this topic — method, accuracy and any band descriptors — so you see exactly where the marks are.

Where can I learn Relative masses of atoms and molecules first?

Start with the free Chemistry lesson on Relative masses of atoms and molecules, then come back and drill past-paper questions under timed conditions.

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9701 · topic questions

Relative masses of atoms and molecules

Chemistry4 questions

4 past-paper questions on Relative masses of atoms and molecules

9701/22 · October/November 20242 marks
A sample of pelopium contains 90.9% by mass 93/41 Nb and 9.1% by mass 181/73 Ta. Calculate the theoretical relative atomic mass…
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9701/22 · May/June 20252 marks
Use Table 2.1 to calculate the relative isotopic mass of the third isotope of iron in the sample. Show your working. Table 2.1…
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9701/22 · May/June 20252 marks
Define relative atomic mass.
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9701/23 · October/November 20242 marks
Use Table 1.2 to calculate the relative atomic mass, Ar, of iridium in the alloy. Give your answer to two decimal places.
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Question stems are shortened previews. Open a question to attempt the full version and have it marked.

Worked example

What a lost mark actually looks like

This answer reaches the right coordinates and still drops a mark — the conclusion is stated, but never justified. Examiners pay for the reasoning, not the answer.

MARKED

80%

Strong

M1dy/dx = 3x^2 - 12x + 9M1 earned
M1(x - 1) $(x - 3) = 0$ M1 earned
A1 $x = 1$ or $x = 3$ A1 earned
B1(1, 5) is a maximum and (3, 1) is a minimumB1 not earned

B1 — withheld
You stated the nature of each point correctly, but stated it without justification. This mark needs the reasoning shown — either evaluate the second derivative (d²y/dx² = 6x − 12, giving −6 at $x = 1$ and +6 at $x = 3$ ) or show a sign change of dy/dx either side of each point. An unsupported assertion earns nothing here even when the conclusion is right.

Relative masses of atoms and molecules (9701) past-paper questions — marked instantly

These are real Cambridge Chemistry past-paper questions on Relative masses of atoms and molecules. Open one, attempt it, then upload your working — MarkScheme grades it against the official 9701 mark scheme so you see exactly where the marks are won and lost on this topic.

Mark your answer →Learn Relative masses of atoms and molecules 9701 grade boundaries

Frequently asked questions

How many Relative masses of atoms and molecules questions are there for 9701?: This page collects 4 recent Cambridge Chemistry (9701) past-paper questions tagged to Relative masses of atoms and molecules. Each links straight to instant marking against the official 9701 scheme.
How are Relative masses of atoms and molecules answers marked?: Type or photograph your working and MarkScheme scores it against the real 9701 mark scheme for this topic — method, accuracy and any band descriptors — so you see exactly where the marks are.
Where can I learn Relative masses of atoms and molecules first?: Start with the free Chemistry lesson on Relative masses of atoms and molecules, then come back and drill past-paper questions under timed conditions.