An unknown powder has been found at a crime scene. It is your job to identify the chemical formula for the substance and its common or generic name by searching the internet. Preliminary tests reveal that the possible elements that can be in the material are carbon, hydrogen, oxygen and nitrogen. Complete combustion of a 1.6 g sample of the unknown powder with excess O 2 produced 3.6665 g of CO 2, 1.1601 g of H 2O, and 0.1061 g N 2. The molar mass of the substance was found to be about 211 g/mol.
Answers: 2
Chemistry, 22.06.2019 04:00
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 06:00
One does not belong why? ice, gold ,wood ,diamond and table salt
Answers: 1
Chemistry, 22.06.2019 13:30
Table sugar completely dissolved in water is an example of a?
Answers: 1
Chemistry, 22.06.2019 15:30
The identities of substances are the same before and after which type of change
Answers: 1
An unknown powder has been found at a crime scene. It is your job to identify the chemical formula f...
Mathematics, 30.01.2021 08:00
Social Studies, 30.01.2021 08:00
Mathematics, 30.01.2021 08:00
History, 30.01.2021 08:00
Mathematics, 30.01.2021 08:00
English, 30.01.2021 08:00
Health, 30.01.2021 08:00
Mathematics, 30.01.2021 08:00
Mathematics, 30.01.2021 08:00
Spanish, 30.01.2021 08:00
Arts, 30.01.2021 08:00
Mathematics, 30.01.2021 08:00