Chemistry, 08.12.2021 02:50 dantelin123

Sara sets up an experiment to collect hydrogen gas in a balloon that is fitted over the top of an Erlenmeyer flask. She records the atmospheric pressure from the barometer as 98.5kPa. When she
returns after lunch, she notices that that volume of the balloon has noticeably decreased. Initially,
Sara think that some of the hydrogen gas has escaped from the balloon. Sara decides she needs to
collect more data to account for her observations. What data would you advise her to collect and
why? (2 marks)

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