Ask Singapore Homework?
Upload a photo of a Singapore homework and someone will email you the solution for free.
Question
secondary 2 | Maths
2 Answers Below
Anyone can contribute an answer, even non-tutors.
science
Date Posted: 3 years ago
Views: 387
See 2 Answers
(a) Size of the eggshells, mass of the eggshells, volume of hydrochloric acid, volume of gas syringe
(b) To collect the carbon dioxide released from the eggshells. (Why C02? Because carbonate is always dissolved into CO2
(c) Undissolved eggshells could still contain calcium carbonate, which could cause the carbon dioxide released to be lower than it supposed to be, affecting the result of the experiment
(d) The eggshell which pushes the gas syringe to a higher height would have the largest amount of calcium carbonate.
Hope this will help you. :)
(b) To collect the carbon dioxide released from the eggshells. (Why C02? Because carbonate is always dissolved into CO2
(c) Undissolved eggshells could still contain calcium carbonate, which could cause the carbon dioxide released to be lower than it supposed to be, affecting the result of the experiment
(d) The eggshell which pushes the gas syringe to a higher height would have the largest amount of calcium carbonate.
Hope this will help you. :)
360 Tutoring Program