Chemistry, 11.02.2020 23:53, alexcuevaz90
In a synthesis experiment you obtain a sample of product on which you do a melting point determination and find a melting point range of 108.0 to 114.3 degrees Celsius. The sample is supposed to be benzoic acid. What preliminary conclusion(s) can you reach from this one determination? (select true or false)
1) The sample is probably impure.2) The sample is not benzoic acid3) The melting point determination may need improvement -- it may not have been done properly, and make sure it was repeated at least once.5) The sample probably needs recrystallization.6) The sample may be benzoic acid.
Answers: 3
Chemistry, 22.06.2019 04:30, terrancebest
Which is a chemical property of iron? a. it forms iron oxide (rust) when exposed to moisture and air. b. it is a gray–black metal that is hard to the touch. c. it has a melting point of 2795°f (1536°c). d. it is a good conductor of heat
Answers: 2
Chemistry, 22.06.2019 05:50, vanessa051266
In an exothermic reaction the bonding energy of the product is: less than the reactants same as the reactants greater than the reactants dependent upon the presence of a catalyst
Answers: 1
Chemistry, 22.06.2019 15:00, kandi2565
Large helium-filled balloons are used to lift scientific equipment to high altitudes. what is the pressure inside such a balloon if it starts out at sea level with a temperature of 10.0ºc and rises to an altitude where its volume is twenty times the original volume and its temperature is – 50.0ºc ?
Answers: 2
In a synthesis experiment you obtain a sample of product on which you do a melting point determinati...
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