Chemistry, 26.10.2020 18:00 mshepherdmiller
hemlock is a poisonous herb of the carrot family. The ancient Greeks used hemlock extras for state executions. Socrates was killed in this way. In a combustion experiement, 50.50 mg of hemlock is burned in excess oxygen. The products are 139.9 mg carbon dioxide and 60.91 mg water. In a second experiment, 75.62 mg of comound was found to contain 8.35 mg of nitrogen. The molar mass is less than 200 g/mol. Determine the molecular formular hemlock.
Answers: 2
Chemistry, 22.06.2019 07:10
Remember to use the proper number of significant figures and leading zeros in all calculations.gelatin has a density of 1.27 g/cm³. if you have a blob of gelatin dessert that fills a 2.0 liter bottle, what is its mass? 2540 g2500 g3.9 x 10-43.937x 10-4
Answers: 3
Chemistry, 22.06.2019 14:00
What mass of natural gas (ch4) must you burn to emit 276 kj of heat?
Answers: 1
Chemistry, 22.06.2019 17:50
Cryolite, na3alf6(s), an ore used in the production of aluminum, can be synthesized using aluminum oxide. start this question by first balance the chemical equation.1.) balance the equation: - alo3(s)+naoh(l)+hf(> na3alf6+h2o(g). 2.) if 17.5 kilograms of al2o3(s), 51.4 kilograms of naoh(l), and 51.4 kilograms of hf(g) react completely, how many kilograms of cryolite will be produced? 3.)which reactants will be in excess, (al2o3, naoh, or hf) 4.)what is the total mass of the excess reactants left over after the reaction is complete in kg?
Answers: 2
Chemistry, 22.06.2019 18:00
Hydrogenation reactions, in which h2 and an "unsaturated" organic compound combine, are used in the food, fuel, and polymer industries. in the simplest case, ethene (c2h4) and h2 form ethane (c2h6). if 140 kj is given off per mole of c2h4 reacting, how much heat (in mj) is released when 12 kg of c2h6 forms?
Answers: 2
hemlock is a poisonous herb of the carrot family. The ancient Greeks used hemlock extras for state e...
Mathematics, 01.10.2019 21:30
World Languages, 01.10.2019 21:30
English, 01.10.2019 21:30
Mathematics, 01.10.2019 21:30
Advanced Placement (AP), 01.10.2019 21:30
English, 01.10.2019 21:30
Computers and Technology, 01.10.2019 21:30
Biology, 01.10.2019 21:30