Chemistry, 24.06.2019 03:30 muravyevaarina
The ph of a solution is measured eight times by one operator using the same instrument. she obtains the following data: 7.15, 7.20, 7.18, 7.19, 7.21, 7.20, 7.16, and 7.20. (a) calculate the sample mean. round your answer to 3 decimal places.
Answers: 3
Chemistry, 22.06.2019 04:00, queenkimm26
Tin has ten stable isotopes. the heaviest, 124sn, makes up 5.80% of naturally occuring tin atoms. how many atoms of 124sn are present in 82.0 g of naturally occurring tin? what is the total mass of the 124sn atoms in this sample?
Answers: 3
Chemistry, 22.06.2019 12:30, johnsont8377
Avariable that is not being directly tested during an experiment should be changed varied experimented controlled
Answers: 1
The ph of a solution is measured eight times by one operator using the same instrument. she obtains...
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