Chemistry, 07.10.2019 18:00 BustD0wnAnt
A2.52 g sample of a compound containing only carbon, hydrogen, nitrogen, oxygen, and sulfur was burned in excess o2 to yield 3.52 g of co2 and 0.839 g of h2o. another sample of the same compound, of mass 4.14 g, yielded 1.75 g of so3. a reaction to determine the nitrogen content was carried out on a third sample with a mass of 5.66 g and yielded 1.88 hno3 (assume that all of the nitrogen in hno3 came from the compound).
calculate the empirical formula of the compound. express your answer as a chemical formula. enter the elements in the order: c, h, s, n, o.
Answers: 3
Chemistry, 21.06.2019 22:30
What are the charges of the subatomic particles by choosing the answer from the drop down menu. protons have a (+1,0,or-1). (protons,neutrons,electrons) have a 0 charge. 3.) electrons have a (+1,0,-1)
Answers: 2
Chemistry, 22.06.2019 04:30
Both josef loschmidt and amedeo avogadro contributed to our understanding of basic molecular numbers, sizes, and reaction ratios. neither scientist discovered “avogadro’s number” in the form we use it today (6.02 x 10 23). still, there’s a controversy over the name. research the contributions from these two scientists and read about how avogadro’s number got its name. briefly state what you think this number should be called, providing key details of each scientist’s contributions to this concept and a solid rationale for your case in naming the number.
Answers: 2
Chemistry, 22.06.2019 13:00
16. why must the number of electrons lost equal the number of electrons gained in every redox reaction? use 3 – 4 sentences in your own words to address this question. 18. what type of radiation is emitted when chromium-51 decays into manganese-51? show the nuclear equation that leads you to this answer. 19. a radioactive nucleus alpha decays to yield a sodium-24 nucleus in 14.8 hours. what was the identity of the original nucleus? show the nuclear equation that leads you to this answer.
Answers: 2
Chemistry, 22.06.2019 22:10
Which aqueous solution of ki freezes at the lowest temperature? 1) 1 mol of ki in 500. g of water 2) 2 mol of ki in 500. g of water 3) 1 mol of ki in 1000. g of water 4) 2 mol of ki in 1000. g of water
Answers: 3
A2.52 g sample of a compound containing only carbon, hydrogen, nitrogen, oxygen, and sulfur was burn...
Mathematics, 20.11.2020 22:30
Biology, 20.11.2020 22:30
Engineering, 20.11.2020 22:30
Mathematics, 20.11.2020 22:30
History, 20.11.2020 22:30
Business, 20.11.2020 22:30
Mathematics, 20.11.2020 22:30
Mathematics, 20.11.2020 22:30
Social Studies, 20.11.2020 22:30
Mathematics, 20.11.2020 22:30
Chemistry, 20.11.2020 22:30
Chemistry, 20.11.2020 22:30
Biology, 20.11.2020 22:30