Figure 13 shows a simple hydrometer

(i) State the purpose of the lead shots in the glass bulb
(ii) How would the hydrometer be made more sensitive?
iii) Describe how the hydrometer is calibrated to measure relative density.

Answer:

i)-To enable the hydrometer floats upright.
ii)-Making the stem thinner.
iii)- Float the hydrometer on water and on a liquid of known density in turn. Mark the levels and divide proportionally the range between two levels and extend on either side.

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Figure 13 shows a simple hydrometer (i) State the purpose of the lead shots in the glass bulb (ii) How would the hydrometer be made more sensitive? iii) Describe how the hydrometer is calibrated to measure relative density.

Figure 13 shows a simple hydrometer

(i) State the purpose of the lead shots in the glass bulb
(ii) How would the hydrometer be made more sensitive?
iii) Describe how the hydrometer is calibrated to measure relative density.