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Question 19N.3.HL.TZ0.3a

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Date November 2019 Marks available [Maximum mark: 1] Reference code 19N.3.HL.TZ0.3a
Level HL Paper 3 Time zone TZ0
Command term Estimate Question number a Adapted from N/A
a.
[Maximum mark: 1]
19N.3.HL.TZ0.3a

An experiment was carried out to study osmosis in plant cells. Small cylinders of zucchini (Cucurbita pepo) were cut and placed in different sucrose solutions at 25 °C. The figure shows the percentage changes in mass after 24 hours.

(a)

Estimate the solute concentration of the zucchini cells.

[1]

Markscheme

0.36 mol dm-3/M ✔

Units required
Allow a range of 0.35–0.37 mol dm-3/M.

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