Chemistry, 20.07.2019 04:50 chiliboy8394
Caffeine, a stimulant found in coffee and soda, has the mass percent composition: c, 49.48%; h, 5.19%; n, 28.85%; o, 16.48%. the molar mass of caffeine is 194.19 g/mol. part a find the molecular formula of caffeine. express your answer as a chemical formula
Answers: 1
Chemistry, 21.06.2019 21:30
Which substances have the lowest melting points: ionic covalent, or metallic
Answers: 1
Chemistry, 22.06.2019 10:30
Apiece of metal with a length of 1.42 cm was measured using four different instruments. which of the following measurements is the most accurate?
Answers: 3
Chemistry, 22.06.2019 12:00
In a laboratory, 1.55mg of an organic compound containing carbon, hydrogen, and oxygen is burned for analysis. this combustion resulted in the formation of 1.45mg of carbon dioxide and .89 mg of water. what is the empirical formula for this compound?
Answers: 1
Caffeine, a stimulant found in coffee and soda, has the mass percent composition: c, 49.48%; h, 5....
Biology, 02.02.2021 01:00
English, 02.02.2021 01:00
Mathematics, 02.02.2021 01:00
Business, 02.02.2021 01:00
Chemistry, 02.02.2021 01:00
Biology, 02.02.2021 01:00
Computers and Technology, 02.02.2021 01:00
Chemistry, 02.02.2021 01:00
Chemistry, 02.02.2021 01:00
English, 02.02.2021 01:00
Social Studies, 02.02.2021 01:00
Mathematics, 02.02.2021 01:00