Chemistry, 11.03.2021 01:20 solikhalifeoy3j1r
A sample of propane, C3H3, contains 16.1 moles of carbon atoms. How many total moles of atoms does the sample contain? Express the total number of moles of carbon and hydrogen numerically.
Answers: 1
Chemistry, 22.06.2019 22:30
Which statement best summarizes the importance of ernest rutherford’s gold foil experiment? it proved that all of john dalton’s postulates were true. it verified j. j. thomson’s work on the atomic structure. it showed that an electron circles a nucleus in a fixed-energy orbit. it showed that a nucleus occupies a small part of the whole atom.
Answers: 1
Chemistry, 23.06.2019 07:30
In a laboratory determination of the atomic weight of tin, a sample of tin is weighed in a crucible. nitric acid is added, and the reaction proceeds to give a hydrated tin(iv)oxide plus no2and h2o. the hydrated tin(iv)oxide is then heated strongly and reacts as follows: sno2.xh2o(s)sno2(s)+ xh2o(g)the sno2is finally cooled and weighed in the crucible. explain the effect on the calculated atomic weight of tin that would result from each of the following experimental errors: (a)considerable spattering occurs when the nitric acid is added to the tin.(b)the hydrated tin(iv)oxide is not heated sufficiently to change it completely to tin oxide.
Answers: 2
Chemistry, 23.06.2019 09:00
What sources of error may have contributed to the percent yield not being 100 percent? think about things that may have led to inaccurate measurements or where mass of the product could have been lost if this experiment was conducted in a physical laboratory.
Answers: 2
Chemistry, 23.06.2019 13:30
Type the correct answer in each box. use numerals instead of words. the distance between earth and the moon is about 384,400 kilometers. the distance can be written in scientific notation as a × 10b kilometers, where a = and b = .
Answers: 1
A sample of propane, C3H3, contains 16.1 moles of carbon atoms. How many total moles of atoms does t...
Biology, 10.11.2020 14:00
Mathematics, 10.11.2020 14:00
Mathematics, 10.11.2020 14:00
Chemistry, 10.11.2020 14:00
Geography, 10.11.2020 14:00
Mathematics, 10.11.2020 14:00
World Languages, 10.11.2020 14:00
Physics, 10.11.2020 14:00
German, 10.11.2020 14:00
Mathematics, 10.11.2020 14:00
Mathematics, 10.11.2020 14:00
History, 10.11.2020 14:00