Ask Singapore Homework?
Upload a photo of a Singapore homework and someone will email you the solution for free.
Question
secondary 4 | E Maths
One Answer Below
Anyone can contribute an answer, even non-tutors.
Hi I don’t understand why they tell me what the given apparatus are in this diagram and how are they used I really don’t understand these type of questionS someone please explain clearly thank you so much for your kind help!!
Date Posted: 4 years ago
Views: 234
Ria, you need to understand the purpose of each apparatus.
A burette (P in the question) is an equipment for measuring the volume of a liquid or aqueous reactant used, to an accuracy of 0.05 cm3. Thus, we can measure, say, 24.85 cm3 of a liquid precisely.
A gas syringe (Q in the question) is an equipment for collecting and measuring the volume of a gas.
A measuring cylinder (R in the question) is an equipment for measuring the volume of a liquid or an aqueous reactant conveniently, to a less accurate value of 1 cm3. In other words, we can only read off readings in blocks of 1 cm3 (although actually 0.5 cm3 is possible).
A pipette (S in the question) is an equipment for measuring a fixed volume of liquid used, depending on the specifications of the pipette. A 20.0 cm3 pipette, for example, is only capable of measuring 20.0 cm3 of liquid (sharp at 20.0 cm3) and nothing else.
A burette (P in the question) is an equipment for measuring the volume of a liquid or aqueous reactant used, to an accuracy of 0.05 cm3. Thus, we can measure, say, 24.85 cm3 of a liquid precisely.
A gas syringe (Q in the question) is an equipment for collecting and measuring the volume of a gas.
A measuring cylinder (R in the question) is an equipment for measuring the volume of a liquid or an aqueous reactant conveniently, to a less accurate value of 1 cm3. In other words, we can only read off readings in blocks of 1 cm3 (although actually 0.5 cm3 is possible).
A pipette (S in the question) is an equipment for measuring a fixed volume of liquid used, depending on the specifications of the pipette. A 20.0 cm3 pipette, for example, is only capable of measuring 20.0 cm3 of liquid (sharp at 20.0 cm3) and nothing else.
See 1 Answer
For option A,P is a pipette. Therefore it is used for titration.
However for option d, the volume of the burette is 25cm^3, therefore it would not be possible to measure 20cm^3 as a burette measures a fixed volume.
However for option d, the volume of the burette is 25cm^3, therefore it would not be possible to measure 20cm^3 as a burette measures a fixed volume.
360 Tutoring Program